Kefeng Wang [Thu, 8 Jul 2021 01:08:43 +0000 (18:08 -0700)]
nds32: convert to setup_initial_init_mm()
Use setup_initial_init_mm() helper to simplify code.
Link: https://lkml.kernel.org/r/20210608083418.137226-9-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Nick Hu <nickhu@andestech.com> Cc: Greentime Hu <green.hu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kefeng Wang [Thu, 8 Jul 2021 01:08:29 +0000 (18:08 -0700)]
arm: convert to setup_initial_init_mm()
Use setup_initial_init_mm() helper to simplify code.
Link: https://lkml.kernel.org/r/20210608083418.137226-4-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Thu, 8 Jul 2021 01:08:15 +0000 (18:08 -0700)]
secretmem: test: add basic selftest for memfd_secret(2)
The test verifies that file descriptor created with memfd_secret does not
allow read/write operations, that secret memory mappings respect
RLIMIT_MEMLOCK and that remote accesses with process_vm_read() and
ptrace() to the secret memory fail.
Link: https://lkml.kernel.org/r/20210518072034.31572-8-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rick Edgecombe <rick.p.edgecombe@intel.com> Cc: Roman Gushchin <guro@fb.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tycho Andersen <tycho@tycho.ws> Cc: Will Deacon <will@kernel.org> Cc: kernel test robot <lkp@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Thu, 8 Jul 2021 01:08:07 +0000 (18:08 -0700)]
PM: hibernate: disable when there are active secretmem users
It is unsafe to allow saving of secretmem areas to the hibernation
snapshot as they would be visible after the resume and this essentially
will defeat the purpose of secret memory mappings.
Prevent hibernation whenever there are active secret memory users.
Link: https://lkml.kernel.org/r/20210518072034.31572-6-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rick Edgecombe <rick.p.edgecombe@intel.com> Cc: Roman Gushchin <guro@fb.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tycho Andersen <tycho@tycho.ws> Cc: Will Deacon <will@kernel.org> Cc: kernel test robot <lkp@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Thu, 8 Jul 2021 01:08:03 +0000 (18:08 -0700)]
mm: introduce memfd_secret system call to create "secret" memory areas
Introduce "memfd_secret" system call with the ability to create memory
areas visible only in the context of the owning process and not mapped not
only to other processes but in the kernel page tables as well.
The secretmem feature is off by default and the user must explicitly
enable it at the boot time.
Once secretmem is enabled, the user will be able to create a file
descriptor using the memfd_secret() system call. The memory areas created
by mmap() calls from this file descriptor will be unmapped from the kernel
direct map and they will be only mapped in the page table of the processes
that have access to the file descriptor.
Secretmem is designed to provide the following protections:
* Enhanced protection (in conjunction with all the other in-kernel
attack prevention systems) against ROP attacks. Seceretmem makes
"simple" ROP insufficient to perform exfiltration, which increases the
required complexity of the attack. Along with other protections like
the kernel stack size limit and address space layout randomization which
make finding gadgets is really hard, absence of any in-kernel primitive
for accessing secret memory means the one gadget ROP attack can't work.
Since the only way to access secret memory is to reconstruct the missing
mapping entry, the attacker has to recover the physical page and insert
a PTE pointing to it in the kernel and then retrieve the contents. That
takes at least three gadgets which is a level of difficulty beyond most
standard attacks.
* Prevent cross-process secret userspace memory exposures. Once the
secret memory is allocated, the user can't accidentally pass it into the
kernel to be transmitted somewhere. The secreremem pages cannot be
accessed via the direct map and they are disallowed in GUP.
* Harden against exploited kernel flaws. In order to access secretmem,
a kernel-side attack would need to either walk the page tables and
create new ones, or spawn a new privileged uiserspace process to perform
secrets exfiltration using ptrace.
The file descriptor based memory has several advantages over the
"traditional" mm interfaces, such as mlock(), mprotect(), madvise(). File
descriptor approach allows explicit and controlled sharing of the memory
areas, it allows to seal the operations. Besides, file descriptor based
memory paves the way for VMMs to remove the secret memory range from the
userspace hipervisor process, for instance QEMU. Andy Lutomirski says:
"Getting fd-backed memory into a guest will take some possibly major
work in the kernel, but getting vma-backed memory into a guest without
mapping it in the host user address space seems much, much worse."
memfd_secret() is made a dedicated system call rather than an extension to
memfd_create() because it's purpose is to allow the user to create more
secure memory mappings rather than to simply allow file based access to
the memory. Nowadays a new system call cost is negligible while it is way
simpler for userspace to deal with a clear-cut system calls than with a
multiplexer or an overloaded syscall. Moreover, the initial
implementation of memfd_secret() is completely distinct from
memfd_create() so there is no much sense in overloading memfd_create() to
begin with. If there will be a need for code sharing between these
implementation it can be easily achieved without a need to adjust user
visible APIs.
The secret memory remains accessible in the process context using uaccess
primitives, but it is not exposed to the kernel otherwise; secret memory
areas are removed from the direct map and functions in the
follow_page()/get_user_page() family will refuse to return a page that
belongs to the secret memory area.
Once there will be a use case that will require exposing secretmem to the
kernel it will be an opt-in request in the system call flags so that user
would have to decide what data can be exposed to the kernel.
Removing of the pages from the direct map may cause its fragmentation on
architectures that use large pages to map the physical memory which
affects the system performance. However, the original Kconfig text for
CONFIG_DIRECT_GBPAGES said that gigabyte pages in the direct map "... can
improve the kernel's performance a tiny bit ..." (commit e23df31b7f36
("x86: add gbpages switches")) and the recent report [1] showed that "...
although 1G mappings are a good default choice, there is no compelling
evidence that it must be the only choice". Hence, it is sufficient to
have secretmem disabled by default with the ability of a system
administrator to enable it at boot time.
Pages in the secretmem regions are unevictable and unmovable to avoid
accidental exposure of the sensitive data via swap or during page
migration.
Since the secretmem mappings are locked in memory they cannot exceed
RLIMIT_MEMLOCK. Since these mappings are already locked independently
from mlock(), an attempt to mlock()/munlock() secretmem range would fail
and mlockall()/munlockall() will ignore secretmem mappings.
However, unlike mlock()ed memory, secretmem currently behaves more like
long-term GUP: secretmem mappings are unmovable mappings directly consumed
by user space. With default limits, there is no excessive use of
secretmem and it poses no real problem in combination with
ZONE_MOVABLE/CMA, but in the future this should be addressed to allow
balanced use of large amounts of secretmem along with ZONE_MOVABLE/CMA.
A page that was a part of the secret memory area is cleared when it is
freed to ensure the data is not exposed to the next user of that page.
The following example demonstrates creation of a secret mapping (error
handling is omitted):
Mike Rapoport [Thu, 8 Jul 2021 01:07:59 +0000 (18:07 -0700)]
set_memory: allow querying whether set_direct_map_*() is actually enabled
On arm64, set_direct_map_*() functions may return 0 without actually
changing the linear map. This behaviour can be controlled using kernel
parameters, so we need a way to determine at runtime whether calls to
set_direct_map_invalid_noflush() and set_direct_map_default_noflush() have
any effect.
Extend set_memory API with can_set_direct_map() function that allows
checking if calling set_direct_map_*() will actually change the page
table, replace several occurrences of open coded checks in arm64 with the
new function and provide a generic stub for architectures that always
modify page tables upon calls to set_direct_map APIs.
Mike Rapoport [Thu, 8 Jul 2021 01:07:54 +0000 (18:07 -0700)]
riscv/Kconfig: make direct map manipulation options depend on MMU
ARCH_HAS_SET_DIRECT_MAP and ARCH_HAS_SET_MEMORY configuration options have
no meaning when CONFIG_MMU is disabled and there is no point to enable
them for the nommu case.
Add an explicit dependency on MMU for these options.
Link: https://lkml.kernel.org/r/20210518072034.31572-3-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christopher Lameter <cl@linux.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rick Edgecombe <rick.p.edgecombe@intel.com> Cc: Roman Gushchin <guro@fb.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tycho Andersen <tycho@tycho.ws> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike Rapoport [Thu, 8 Jul 2021 01:07:50 +0000 (18:07 -0700)]
mmap: make mlock_future_check() global
Patch series "mm: introduce memfd_secret system call to create "secret" memory areas", v20.
This is an implementation of "secret" mappings backed by a file
descriptor.
The file descriptor backing secret memory mappings is created using a
dedicated memfd_secret system call The desired protection mode for the
memory is configured using flags parameter of the system call. The mmap()
of the file descriptor created with memfd_secret() will create a "secret"
memory mapping. The pages in that mapping will be marked as not present
in the direct map and will be present only in the page table of the owning
mm.
Although normally Linux userspace mappings are protected from other users,
such secret mappings are useful for environments where a hostile tenant is
trying to trick the kernel into giving them access to other tenants
mappings.
It's designed to provide the following protections:
* Enhanced protection (in conjunction with all the other in-kernel
attack prevention systems) against ROP attacks. Seceretmem makes
"simple" ROP insufficient to perform exfiltration, which increases the
required complexity of the attack. Along with other protections like
the kernel stack size limit and address space layout randomization which
make finding gadgets is really hard, absence of any in-kernel primitive
for accessing secret memory means the one gadget ROP attack can't work.
Since the only way to access secret memory is to reconstruct the missing
mapping entry, the attacker has to recover the physical page and insert
a PTE pointing to it in the kernel and then retrieve the contents. That
takes at least three gadgets which is a level of difficulty beyond most
standard attacks.
* Prevent cross-process secret userspace memory exposures. Once the
secret memory is allocated, the user can't accidentally pass it into the
kernel to be transmitted somewhere. The secreremem pages cannot be
accessed via the direct map and they are disallowed in GUP.
* Harden against exploited kernel flaws. In order to access secretmem,
a kernel-side attack would need to either walk the page tables and
create new ones, or spawn a new privileged uiserspace process to perform
secrets exfiltration using ptrace.
In the future the secret mappings may be used as a mean to protect guest
memory in a virtual machine host.
For demonstration of secret memory usage we've created a userspace library
that does two things: the first is act as a preloader for openssl to
redirect all the OPENSSL_malloc calls to secret memory meaning any secret
keys get automatically protected this way and the other thing it does is
expose the API to the user who needs it. We anticipate that a lot of the
use cases would be like the openssl one: many toolkits that deal with
secret keys already have special handling for the memory to try to give
them greater protection, so this would simply be pluggable into the
toolkits without any need for user application modification.
Hiding secret memory mappings behind an anonymous file allows usage of the
page cache for tracking pages allocated for the "secret" mappings as well
as using address_space_operations for e.g. page migration callbacks.
The anonymous file may be also used implicitly, like hugetlb files, to
implement mmap(MAP_SECRET) and use the secret memory areas with "native"
mm ABIs in the future.
Removing of the pages from the direct map may cause its fragmentation on
architectures that use large pages to map the physical memory which
affects the system performance. However, the original Kconfig text for
CONFIG_DIRECT_GBPAGES said that gigabyte pages in the direct map "... can
improve the kernel's performance a tiny bit ..." (commit e23df31b7f36
("x86: add gbpages switches")) and the recent report [1] showed that "...
although 1G mappings are a good default choice, there is no compelling
evidence that it must be the only choice". Hence, it is sufficient to
have secretmem disabled by default with the ability of a system
administrator to enable it at boot time.
In addition, there is also a long term goal to improve management of the
direct map.
Oliver Glitta [Thu, 8 Jul 2021 01:07:47 +0000 (18:07 -0700)]
mm/slub: use stackdepot to save stack trace in objects
Many stack traces are similar so there are many similar arrays.
Stackdepot saves each unique stack only once.
Replace field addrs in struct track with depot_stack_handle_t handle. Use
stackdepot to save stack trace.
The benefits are smaller memory overhead and possibility to aggregate
per-cache statistics in the future using the stackdepot handle instead of
matching stacks manually.
[rdunlap@infradead.org: rename save_stack_trace()] Link: https://lkml.kernel.org/r/20210513051920.29320-1-rdunlap@infradead.org
[vbabka@suse.cz: fix lockdep splat] Link: https://lkml.kernel.org/r/20210516195150.26740-1-vbabka@suse.czLink: Signed-off-by: Oliver Glitta <glittao@gmail.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: David Rientjes <rientjes@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ld.lld warns that the '.modinfo' section is not currently handled:
ld.lld: warning: kernel/built-in.a(workqueue.o):(.modinfo) is being placed in '.modinfo'
ld.lld: warning: kernel/built-in.a(printk/printk.o):(.modinfo) is being placed in '.modinfo'
ld.lld: warning: kernel/built-in.a(irq/spurious.o):(.modinfo) is being placed in '.modinfo'
ld.lld: warning: kernel/built-in.a(rcu/update.o):(.modinfo) is being placed in '.modinfo'
The '.modinfo' section was added in commit a8d6dd7a2b50 ("moduleparam:
Save information about built-in modules in separate file") to the DISCARDS
macro but Hexagon has never used that macro. The unification of DISCARDS
happened in commit 0944eea1f88f ("linker script: unify usage of discard
definition") in 2009, prior to Hexagon being added in 2011.
Switch Hexagon over to the DISCARDS macro so that anything that is
expected to be discarded gets discarded.
Link: https://lkml.kernel.org/r/20210521011239.1332345-3-nathan@kernel.org Fixes: a37c15d64572 ("Hexagon: Add configuration and makefiles for the Hexagon architecture.") Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Brian Cain <bcain@codeaurora.org> Cc: David Rientjes <rientjes@google.com> Cc: Oliver Glitta <glittao@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hexagon: handle {,SOFT}IRQENTRY_TEXT in linker script
Patch series "hexagon: Fix build error with CONFIG_STACKDEPOT and select CONFIG_ARCH_WANT_LD_ORPHAN_WARN".
This series fixes an error with ARCH=hexagon that was pointed out by the
patch "mm/slub: use stackdepot to save stack trace in objects".
The first patch fixes that error by handling the '.irqentry.text' and
'.softirqentry.text' sections.
The second patch switches Hexagon over to the common DISCARDS macro, which
should have been done when Hexagon was merged into the tree to match
commit 0944eea1f88f ("linker script: unify usage of discard definition").
The third patch selects CONFIG_ARCH_WANT_LD_ORPHAN_WARN so that something
like this does not happen again.
This patch (of 3):
Patch "mm/slub: use stackdepot to save stack trace in objects" in -mm
selects CONFIG_STACKDEPOT when CONFIG_STACKTRACE_SUPPORT is selected and
CONFIG_STACKDEPOT requires IRQENTRY_TEXT and SOFTIRQENTRY_TEXT to be
handled after commit 898d97e9fae0 ("kasan: stackdepot: move
filter_irq_stacks() to stackdepot.c") due to the use of the
__{,soft}irqentry_text_{start,end} section symbols. If those sections are
not handled, the build is broken.
$ make ARCH=hexagon CROSS_COMPILE=hexagon-linux- LLVM=1 LLVM_IAS=1 defconfig all
...
ld.lld: error: undefined symbol: __irqentry_text_start
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
ld.lld: error: undefined symbol: __irqentry_text_end
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
ld.lld: error: undefined symbol: __softirqentry_text_start
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
ld.lld: error: undefined symbol: __softirqentry_text_end
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
>>> referenced by stackdepot.c
>>> stackdepot.o:(filter_irq_stacks) in archive lib/built-in.a
...
Add these sections to the Hexagon linker script so the build continues to
work. ld.lld's orphan section warning would have caught this prior to the
-mm commit mentioned above:
ld.lld: warning: kernel/built-in.a(softirq.o):(.softirqentry.text) is being placed in '.softirqentry.text'
ld.lld: warning: kernel/built-in.a(softirq.o):(.softirqentry.text) is being placed in '.softirqentry.text'
ld.lld: warning: kernel/built-in.a(softirq.o):(.softirqentry.text) is being placed in '.softirqentry.text'
Zhen Lei [Thu, 8 Jul 2021 01:07:34 +0000 (18:07 -0700)]
lib: fix spelling mistakes in header files
Fix some spelling mistakes in comments found by "codespell":
Hoever ==> However
poiter ==> pointer
representaion ==> representation
uppon ==> upon
independend ==> independent
aquired ==> acquired
mis-match ==> mismatch
scrach ==> scratch
struture ==> structure
Analagous ==> Analogous
interation ==> iteration
And some were discovered manually by Joe Perches and Christoph Lameter:
stroed ==> stored
arch independent ==> an architecture independent
A example structure for ==> Example structure for
Link: https://lkml.kernel.org/r/20210609150027.14805-2-thunder.leizhen@huawei.com Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Cc: Christoph Lameter <cl@gentwo.de> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Dennis Zhou <dennis@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge tag 'modules-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull module updates from Jessica Yu:
- Fix incorrect logic in module_kallsyms_on_each_symbol()
- Fix for a Coccinelle warning
* tag 'modules-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: correctly exit module_kallsyms_on_each_symbol when fn() != 0
kernel/module: Use BUG_ON instead of if condition followed by BUG
Merge tag 'x86-fpu-2021-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fpu updates from Thomas Gleixner:
"Fixes and improvements for FPU handling on x86:
- Prevent sigaltstack out of bounds writes.
The kernel unconditionally writes the FPU state to the alternate
stack without checking whether the stack is large enough to
accomodate it.
Check the alternate stack size before doing so and in case it's too
small force a SIGSEGV instead of silently corrupting user space
data.
- MINSIGSTKZ and SIGSTKSZ are constants in signal.h and have never
been updated despite the fact that the FPU state which is stored on
the signal stack has grown over time which causes trouble in the
field when AVX512 is available on a CPU. The kernel does not expose
the minimum requirements for the alternate stack size depending on
the available and enabled CPU features.
ARM already added an aux vector AT_MINSIGSTKSZ for the same reason.
Add it to x86 as well.
- A major cleanup of the x86 FPU code. The recent discoveries of
XSTATE related issues unearthed quite some inconsistencies,
duplicated code and other issues.
The fine granular overhaul addresses this, makes the code more
robust and maintainable, which allows to integrate upcoming XSTATE
related features in sane ways"
* tag 'x86-fpu-2021-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (74 commits)
x86/fpu/xstate: Clear xstate header in copy_xstate_to_uabi_buf() again
x86/fpu/signal: Let xrstor handle the features to init
x86/fpu/signal: Handle #PF in the direct restore path
x86/fpu: Return proper error codes from user access functions
x86/fpu/signal: Split out the direct restore code
x86/fpu/signal: Sanitize copy_user_to_fpregs_zeroing()
x86/fpu/signal: Sanitize the xstate check on sigframe
x86/fpu/signal: Remove the legacy alignment check
x86/fpu/signal: Move initial checks into fpu__restore_sig()
x86/fpu: Mark init_fpstate __ro_after_init
x86/pkru: Remove xstate fiddling from write_pkru()
x86/fpu: Don't store PKRU in xstate in fpu_reset_fpstate()
x86/fpu: Remove PKRU handling from switch_fpu_finish()
x86/fpu: Mask PKRU from kernel XRSTOR[S] operations
x86/fpu: Hook up PKRU into ptrace()
x86/fpu: Add PKRU storage outside of task XSAVE buffer
x86/fpu: Dont restore PKRU in fpregs_restore_userspace()
x86/fpu: Rename xfeatures_mask_user() to xfeatures_mask_uabi()
x86/fpu: Move FXSAVE_LEAK quirk info __copy_kernel_to_fpregs()
x86/fpu: Rename __fpregs_load_activate() to fpregs_restore_userregs()
...
Merge tag 'for-linus-5.14-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
"Only two minor patches this time: one cleanup patch and one patch
refreshing a Xen header"
* tag 'for-linus-5.14-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: sync include/xen/interface/io/ring.h with Xen's newest version
xen: Use DEVICE_ATTR_*() macro
Merge tag 'hwlock-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull hwspinlock updates from Bjorn Andersson:
"This adds a driver for the hardware spinlock in Allwinner sun6i"
* tag 'hwlock-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
dt-bindings: hwlock: sun6i: Fix various warnings in binding
hwspinlock: add sun6i hardware spinlock support
dt-bindings: hwlock: add sun6i_hwspinlock
Merge tag 'rproc-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This adds support for controlling the PRU and R5F clusters on the TI
AM64x, the remote processor in i.MX7ULP, i.MX8MN/P and i.MX8ULP NXP
and the audio, compute and modem remoteprocs in the Qualcomm SC8180x
platform.
It fixes improper ordering of cdev and device creation of the
remoteproc control interface and it fixes resource leaks in the error
handling path of rproc_add() and the Qualcomm modem and wifi
remoteproc drivers.
Lastly it fixes a few build warnings and replace the dummy parameter
passed in the mailbox api of the stm32 driver to something not living
on the stack"
* tag 'rproc-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (32 commits)
remoteproc: qcom: pas: Add SC8180X adsp, cdsp and mpss
dt-bindings: remoteproc: qcom: pas: Add SC8180X adsp, cdsp and mpss
remoteproc: imx_rproc: support i.MX8ULP
dt-bindings: remoteproc: imx_rproc: support i.MX8ULP
remoteproc: stm32: fix mbox_send_message call
remoteproc: core: Cleanup device in case of failure
remoteproc: core: Fix cdev remove and rproc del
remoteproc: core: Move validate before device add
remoteproc: core: Move cdev add before device add
remoteproc: pru: Add support for various PRU cores on K3 AM64x SoCs
dt-bindings: remoteproc: pru: Update bindings for K3 AM64x SoCs
remoteproc: qcom_wcnss: Use devm_qcom_smem_state_get()
remoteproc: qcom_q6v5: Use devm_qcom_smem_state_get() to fix missing put()
soc: qcom: smem_state: Add devm_qcom_smem_state_get()
dt-bindings: remoteproc: qcom: pas: Fix indentation warnings
remoteproc: imx-rproc: Fix IMX_REMOTEPROC configuration
remoteproc: imx_rproc: support i.MX8MN/P
remoteproc: imx_rproc: support i.MX7ULP
remoteproc: imx_rproc: make clk optional
remoteproc: imx_rproc: initial support for mutilple start/stop method
...
In preparation to enable -Wimplicit-fallthrough for Clang, fix a
warning by explicitly adding a fallthrough; statement.
Notice that this seems to be a Duff device for performance[1]. So,
although the code looks a bit _funny_, I didn't want to refactor
or modify it beyond merely adding a fallthrough marking, which
might be the least disruptive way to fix this issue.
In preparation to enable -Wimplicit-fallthrough for Clang, fix a
warning by explicitly adding a fallthrough; statement.
Notice that this seems to be a Duff device for performance[1]. So,
although the code looks a bit _funny_, I didn't want to refactor
or modify it beyond merely adding a fallthrough marking, which
might be the least disruptive way to fix this issue.
Merge tag 'kgdb-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
Pull kgdb updates from Daniel Thompson:
"This was a extremely quiet cycle for kgdb. This consists of two
patches that between them address spelling errors and a switch
fallthrough warning"
* tag 'kgdb-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kgdb: Fix fall-through warning for Clang
kgdb: Fix spelling mistakes
Merge tag 'fuse-update-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Fixes for virtiofs submounts
- Misc fixes and cleanups
* tag 'fuse-update-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
virtiofs: Fix spelling mistakes
fuse: use DIV_ROUND_UP helper macro for calculations
fuse: fix illegal access to inode with reused nodeid
fuse: allow fallocate(FALLOC_FL_ZERO_RANGE)
fuse: Make fuse_fill_super_submount() static
fuse: Switch to fc_mount() for submounts
fuse: Call vfs_get_tree() for submounts
fuse: add dedicated filesystem context ops for submounts
virtiofs: propagate sync() to file server
fuse: reject internal errno
fuse: check connected before queueing on fpq->io
fuse: ignore PG_workingset after stealing
fuse: Fix infinite loop in sget_fc()
fuse: Fix crash if superblock of submount gets killed early
fuse: Fix crash in fuse_dentry_automount() error path
Merge tag 'for-linus-5.14-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs updates from Mike Marshall:
"A read-ahead adjustment and a fix.
The readahead adjustment was suggested by Matthew Wilcox and looks
like how I should have written it in the first place... the "df fix"
was suggested by Walt Ligon, some Orangefs users have been complaining
about whacky df output..."
* tag 'for-linus-5.14-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: fix orangefs df output.
orangefs: readahead adjustment
Merge tag 'exfat-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Improved compatibility issue with exfat from some camera vendors.
- Do not need to release root inode on error path.
* tag 'exfat-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: handle wrong stream entry size in exfat_readdir()
exfat: avoid incorrectly releasing for root inode
Merge tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial updates from Greg KH:
"Here is the big set of tty and serial driver patches for 5.14-rc1.
A bit more than normal, but nothing major, lots of cleanups.
Highlights are:
- lots of tty api cleanups and mxser driver cleanups from Jiri
- build warning fixes
- various serial driver updates
- coding style cleanups
- various tty driver minor fixes and updates
- removal of broken and disable r3964 line discipline (finally!)
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits)
serial: mvebu-uart: remove unused member nb from struct mvebu_uart
arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
dt-bindings: mvebu-uart: fix documentation
serial: mvebu-uart: correctly calculate minimal possible baudrate
serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
serial: mvebu-uart: fix calculation of clock divisor
tty: make linux/tty_flip.h self-contained
serial: Prefer unsigned int to bare use of unsigned
serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
serial: qcom_geni_serial: use DT aliases according to DT bindings
Revert "tty: serial: Add UART driver for Cortina-Access platform"
tty: serial: Add UART driver for Cortina-Access platform
MAINTAINERS: add me back as mxser maintainer
mxser: Documentation, fix typos
mxser: Documentation, make the docs up-to-date
mxser: Documentation, remove traces of callout device
mxser: introduce mxser_16550A_or_MUST helper
mxser: rename flags to old_speed in mxser_set_serial_info
mxser: use port variable in mxser_set_serial_info
mxser: access info->MCR under info->slock
...
Merge tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging / IIO driver updates from Greg KH:
"Here is the big set of IIO and staging driver patches for 5.14-rc1.
Loads of IIO driver updates and additions in here, the shortlog has
the full details.
For the staging side, we moved a few drivers out of staging, and
deleted the kpc2000 drivers as the original developer asked us to
because no one was working on them anymore.
Also in here are loads of coding style cleanups due to different
intern projects focusing on the staging tree to try to get experience
doing kernel development.
All of these have been in the linux-next tree for a while with no
reported problems"
* tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (744 commits)
staging: hi6421-spmi-pmic: cleanup some macros
staging: hi6421-spmi-pmic: change identation of a table
staging: hi6421-spmi-pmic: change a return code
staging: hi6421-spmi-pmic: better name IRQs
staging: hi6421-spmi-pmic: use devm_request_threaded_irq()
staging: hisilicon,hi6421-spmi-pmic.yaml: cleanup descriptions
spmi: hisi-spmi-controller: move driver from staging
phy: phy-hi3670-usb3: move driver from staging into phy
staging: rtl8188eu: remove include/rtw_debug.h header
staging: rtl8188eu: remove GlobalDebugLevel variable
staging: rtl8188eu: remove DRIVER_PREFIX preprocessor definition
staging: rtl8188eu: remove RT_TRACE macro
staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_recv.c
staging: rtl8188eu: remove all RT_TRACE calls from hal/hal_intf.c
staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_xmit.c
staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_xmit.c
staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_pwrctrl.c
staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_recv.c
staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ioctl_set.c
staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ieee80211.c
...
Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core changes from Greg KH:
"Here is the small set of driver core and debugfs updates for 5.14-rc1.
Included in here are:
- debugfs api cleanups (touched some drivers)
- devres updates
- tiny driver core updates and tweaks
Nothing major in here at all, and all have been in linux-next for a
while with no reported issues"
* tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits)
docs: ABI: testing: sysfs-firmware-memmap: add some memmap types.
devres: Enable trace events
devres: No need to call remove_nodes() when there none present
devres: Use list_for_each_safe_from() in remove_nodes()
devres: Make locking straight forward in release_nodes()
kernfs: move revalidate to be near lookup
drivers/base: Constify static attribute_group structs
firmware_loader: remove unneeded 'comma' macro
devcoredump: remove contact information
driver core: Drop helper devm_platform_ioremap_resource_wc()
component: Rename 'dev' to 'parent'
component: Drop 'dev' argument to component_match_realloc()
device property: Don't check for NULL twice in the loops
driver core: auxiliary bus: Fix typo in the docs
drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO
debugfs: remove return value of debugfs_create_ulong()
debugfs: remove return value of debugfs_create_bool()
scsi: snic: debugfs: remove local storage of debugfs files
b43: don't save dentries for debugfs
b43legacy: don't save dentries for debugfs
...
Merge tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc driver updates from Greg KH:
"Here is the big set of char / misc and other driver subsystem updates
for 5.14-rc1. Included in here are:
- habanalabs driver updates
- fsl-mc driver updates
- comedi driver updates
- fpga driver updates
- extcon driver updates
- interconnect driver updates
- mei driver updates
- nvmem driver updates
- phy driver updates
- pnp driver updates
- soundwire driver updates
- lots of other tiny driver updates for char and misc drivers
This is looking more and more like the "various driver subsystems
mushed together" tree...
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits)
mcb: Use DEFINE_RES_MEM() helper macro and fix the end address
PNP: moved EXPORT_SYMBOL so that it immediately followed its function/variable
bus: mhi: pci-generic: Add missing 'pci_disable_pcie_error_reporting()' calls
bus: mhi: Wait for M2 state during system resume
bus: mhi: core: Fix power down latency
intel_th: Wait until port is in reset before programming it
intel_th: msu: Make contiguous buffers uncached
intel_th: Remove an unused exit point from intel_th_remove()
stm class: Spelling fix
nitro_enclaves: Set Bus Master for the NE PCI device
misc: ibmasm: Modify matricies to matrices
misc: vmw_vmci: return the correct errno code
siox: Simplify error handling via dev_err_probe()
fpga: machxo2-spi: Address warning about unused variable
lkdtm/heap: Add init_on_alloc tests
selftests/lkdtm: Enable various testable CONFIGs
lkdtm: Add CONFIG hints in errors where possible
lkdtm: Enable DOUBLE_FAULT on all architectures
lkdtm/heap: Add vmalloc linear overflow test
lkdtm/bugs: XFAIL UNALIGNED_LOAD_STORE_WRITE
...
Merge tag 'backlight-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Drivers:
- Add support for Richtek RT4831 Backlight
New Device Support:
- Add support for Qualcomm PMI8994 WLED Backlight
Fix-ups:
- Device Tree adaptions to richtek,rt4831-backlight
- Trivial spelling, whitespace, etc in Kconfig
- Use Atomic PWM API in lm3630a_bl
Bug Fixes:
- Fix Firmware Node Leak in error path in lm3630a_bl
- Fix erroneous return codes in lm3630a_bl"
* tag 'backlight-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: lm3630a: Convert to atomic PWM API and check for errors
backlight: lm3630a: Fix return code of .update_status() callback
backlight: Kconfig whitespace and indentation cleanups
video: backlight: qcom-wled: Add PMI8994 compatible
backlight: rt4831: Adds support for Richtek RT4831 backlight
backlight: rt4831: Adds DT binding document for Richtek RT4831 backlight
backlight: lm3630a_bl: Put fwnode in error case during ->probe()
Merge tag 'mfd-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull mfd updates from Lee Jones:
"Core Frameworks:
- Fix Software Node clean-up code
New Drivers:
- Add support for MediaTek MT6359 PMIC
- Add support for Qualcomm PM8008 PMIC
- Add support for Richtek RT4831
New Device Support:
- Add support for Audio CODECs to Rockchip RK817
- Add support for Alder Lake-M to Intel LPSS PCI
- Add support for Periph Device Charge to ChromeOS EC
New Functionality:
- Provide additional IRQs for wcd934x
- Add optional Reset functionality to lp87565
Fix-ups:
- Namespacing & visibility fixes to lp87565
- Differentiate between Power and Home key IRQs in mt6358
- Export I2C device tables in da9052-i2c, stmpe-i2c
- Adapt IRQ flags in max8907, rn5t61, max8907
- Make some functions/devices optional in axp20x, cros_ec_dev
- Explicitly include used header files in ioc3
- Remove superfluous lines in MAINTAINERS, sec-core, st,stm32-timers
- Resolve Kerneldoc issues in omap-usb-host, omap-usb-tll, si476x-cmd, si476x-i2c
- Convert arizona-core to a module
- Copyright changes in hi655x-pmic
- Drop support for board file initialisation in sec-core
- Trivial spelling, whitespace etc updates in lp87565, si476x-cmd,
mt6360-core, wm831x-core, twl-core, db8500-prcmu
- Simplify various implementations of wcd934x, mt6360-core, max8997,
max8998, da9052-i2c, da9062-core, sec-core,
- Device Tree binding changes in google,cros-ec,
richtek,rt4831-backlight, db8500-prcmu, qcom,pm8008, qcom,spmi-pmic
- Use provided APIs to simplify t7l66xb, as3722, da9055-core,
tps80031, 88pm800, 88pm805, asic3, sun6i-prcm, wm831x-core,
wm831x-otp, ucb1x00-assabet, timberdale, sm501, pcf50633-core,
kempld-core, janz-cmodio, intel_soc_pmic_bxtwc, ab8500-core
Bug Fixes:
- Fix unused variable warning in rk817_codec
- Fix regulator voltage configuration in rohm-bd71828
- Fix ongoing freeing of regmap_config 'name' issue in syscon
- Fix error handling path in da9063-i2c
- Fix Kconfig issues in MFD_MP2629
- Fix DMA mask warnings in motorola-cpcap"
* tag 'mfd-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (83 commits)
mfd: cros_ec: Add peripheral device charger
mfd: max8907: Remove IRQF_NO_AUTOEN flag
mfd: ab8500-core: Use DEVICE_ATTR_RO/RW macro
mfd: intel_soc_pmic_bxtwc: Use DEVICE_ATTR_ADMIN_RW macro
mfd: janz-cmodio: Use DEVICE_ATTR_RO macro
mfd: kempld-core: Use DEVICE_ATTR_RO macro
mfd: pcf50633: Use DEVICE_ATTR_ADMIN_RO macro
mfd: sm501: Use DEVICE_ATTR_RO macro
mfd: timberdale: Use DEVICE_ATTR_RO macro
mfd: ucb1x00-assabet: Use DEVICE_ATTR_RO macro
mfd: wm831x: Use DEVICE_ATTR_RO macro
mfd: wm831x: Use DEFINE_RES_IRQ_NAMED() and DEFINE_RES_IRQ() to simplify code
dt-bindings: mfd: stm32-timers: Remove #address/size cells from required properties
mfd: sun6i-prcm: Use DEFINE_RES_MEM() to simplify code
mfd: asic3: Use DEFINE_RES_MEM() and DEFINE_RES_IRQ() to simplify code
mfd: 88pm805: Use DEFINE_RES_IRQ_NAMED() to simplify code
mfd: 88pm800: Use DEFINE_RES_IRQ_NAMED() to simplify code
mfd: tps80031: Use DEFINE_RES_IRQ() to simplify code
mfd: da9055: Use DEFINE_RES_IRQ_NAMED() to simplify code
mfd: as3722: Use DEFINE_RES_IRQ_NAMED() to simplify code
...
Merge tag 'mmc-v5.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson
"MMC core:
- Clear flags before allowing to retune
MMC host:
- sdhci: Clear unused bounce buffer at DMA mmap error path
- sdhci: Fix warning message when accessing RPMB in HS400 mode
- sdhci-of-arasan: Use clock-frequency property to update clk_xin
- mtk-sd: Fixup compatible string for MT8195"
* tag 'mmc-v5.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci: Fix warning message when accessing RPMB in HS400 mode
dt-bindings: mmc: change compatiable string for MT8195 mmc host IP
mmc: sdhci: Clear unused bounce buffer at DMA mmap error path
phy: intel: Fix for warnings due to EMMC clock 175Mhz change in FIP
mmc: sdhci-of-arasan: Use clock-frequency property to update clk_xin
mmc: core: clear flags before allowing to retune
Merge tag 'gpio-updates-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"One new driver, support for new models in existing ones, dt-bindings
conversions for several modules and improvements all over the place.
Summary:
- new driver for the IDT 79RC3243x GPIO controller
- device tree bindings coversion to YAML for the following drivers:
gpio-rk3328-grf, gpio-omap, gpio-davinci, gpio-zynq, gpio-stp,
gpio-pcf857x
- cleanup of probe functions in many drivers from Alexandru Ardelean,
mostly dropping unnecessary calls to platform_set_drvdata() and
removing error messages where none are needed (handled by the
subsystem already)
- several improvements to the core gpiolib and the sysfs interface
code from Andy Shevchenko
- conversion of the gpio-xilinx driver to using the bitmap API +
improvements of suspend/resume handling + minor tweaks
- convert the gpio-stmpe to using devres helpers exclusively in probe
for improved robustness
- updates for the generic gpio-regmap driver
- updates for the gpio-dwapb driver
- support for a new model in gpio-pca953x
- cleanups in gpio-tegra186, gpio-104-idio-16, gpio-mxs & gpio-xgene
- slight code refactoring of the gpio-zynq driver
- documentation fixes from Mauro Carvalho Chehab
- a bunch of minor tweaks and improvements all over the place"
* tag 'gpio-updates-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (57 commits)
docs: driver-api: gpio: using-gpio.rst: avoid using ReST :doc:`foo` markup
dt-bindings: gpio: pcf857x: Convert to json-schema
gpio: mxs: Prefer unsigned int to bare use of unsigned
dt-bindings: gpio: stp: convert to json-schema
dt-bindings: gpio: zynq: convert bindings to YAML
dt-bindings: gpio: gpio-davinci: Convert to json-schema
gpio: pca953x: Add support for the On Semi pca9655
gpio: gpio-xilinx: update on suspend and resume calls
gpio: zynq: Check return value of irq_get_irq_data
gpio: zynq: Check return value of pm_runtime_get_sync
gpio: zynq: use module_platform_driver to simplify the code
gpio: idt3243x: Fix return value check in idt_gpio_probe()
MAINTAINERS: update ti,omap-gpio.yaml reference
dt-bindings: gpio: Add devicetree binding for IDT 79RC32434 GPIO controller
gpio: Add support for IDT 79RC3243x GPIO controller
gpio: regmap: move drvdata to config data
gpio-dwapb: Drop unused headers and sort the rest
gpio: gpio-regmap: Use devm_add_action_or_reset()
gpio: dwapb: Switch to use fwnode_irq_get()
gpio: dwapb: Drop redundant check in dwapb_irq_set_type()
...
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for SparkFun Qwiic Joystick
- pm8941-pwrkey driver now supports PMK8350
- a bunch of assorted driver fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (44 commits)
Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
Input: hideep - fix the uninitialized use in hideep_nvm_unlock()
Input: trackpoint - use kobj_to_dev()
Input: atkbd - use kobj_to_dev()
Input: tsc200x-core - use kobj_to_dev()
Input: ims-pcu - use kobj_to_dev()
Input: cros_ec_keyb - use kobj_to_dev() API
dt-bindings: input: touchscreen: st1232: Convert to json-schema
Input: i8042 - fix typos in comments
Input: add SparkFun Qwiic Joystick driver
dt-bindings: Add vendor prefix and bindings for Qwiic Joystick
Input: cy8ctmg110_ts - switch to using gpiod API
Input: cy8ctmg110_ts - switch to using managed resources
Input: cy8ctmg110_ts - use endian helpers when converting data on wire
Input: cy8ctmg110_ts - let I2C core configure wake interrupt
Input: cy8ctmg110_ts - do not hardcode as wakeup source
Input: cy8ctmg110_ts - do not hard code interrupt trigger
Input: cy8ctmg110_ts - rely on platform code to supply interrupt
Input: resistive-adc-touch - fix uninitialized variable 'press'
Input: pm8941-pwrkey - add support for PMK8350 PON_HLOS PMIC peripheral
...
Merge tag 'mtd/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Richard Weinberger:
"MTD core changes:
- Convert list_for_each to entry variant
- Use MTD_DEVICE_ATTR_RO/RW() helper macros
- Remove unnecessary OOM messages
- Potential NULL dereference in mtd_otp_size()
- Fix freeing of otp_info buffer
- Create partname and partid debug files for child MTDs
- tests:
- Remove redundant assignment to err
- Fix error return code in mtd_oobtest_init()
- Add OTP NVMEM provider support
- Allow specifying of_node
- Convert sysfs sprintf/snprintf family to sysfs_emit
Bindings changes:
- Convert ti,am654-hbmc.txt to YAML schema
- spi-nor: add otp property
- Add OTP bindings
- add YAML schema for the generic MTD bindings
- Add brcm,trx-magic
MTD device drivers changes:
- Add support for microchip 48l640 EERAM
- Remove superfluous "break"
- sm_ftl:
- Fix alignment of block comment
- nftl:
- Return -ENOMEM when kmalloc failed
- nftlcore:
- Remove set but rewrite variables
- phram:
- Fix error return code in phram_setup()
- plat-ram:
- Remove redundant dev_err call in platram_probe()
MTD parsers changes:
- Qcom:
- Fix leaking of partition name
- Redboot:
- Fix style issues
- Seek fis-index-block in the right node
- trx:
- Allow to use TRX parser on Mediatek SoCs
- Allow to specify brcm, trx-magic in DT
Raw NAND core:
- Allow SDR timings to be nacked
- Bring support for NV-DDR timings which involved a number of small
preparation changes to bring new helpers, properly introduce NV-DDR
structures, fill them, differenciate them and pick the best timing
set.
- Add the necessary infrastructure to parse the new gpio-cs property
which aims at enlarging the number of available CS when a hardware
controller is too constrained.
- Update dead URL
- Silence static checker warning in nand_setup_interface()
- BBT:
- Fix corner case in bad block table handling
- onfi:
- Use more recent ONFI specification wording
- Use the BIT() macro when possible
Raw NAND controller drivers:
- Atmel:
- Ensure the data interface is supported.
- Arasan:
- Finer grain NV-DDR configuration
- Rename the data interface register
- Use the right DMA mask
- Leverage additional GPIO CS
- Ensure proper configuration for the asserted target
- Add support for the NV-DDR interface
- Fix a macro parameter
- brcmnand:
- Convert bindings to json-schema
- OMAP:
- Various fixes and style improvements
- Add larger page NAND chips support
- PL35X:
- New driver
- QCOM:
- Avoid writing to obsolete register
- Delete an unneeded bool conversion
- Allow override of partition parser
- Marvell:
- Minor documentation correction
- Add missing clk_disable_unprepare() on error in
marvell_nfc_resume()
- R852:
- Use DEVICE_ATTR_RO() helper macro
- MTK:
- Remove redundant dev_err call in mtk_ecc_probe()
- HISI504:
- Remove redundant dev_err call in probe
SPI-NAND core:
- Light reorganisation for the introduction of a core resume handler
- Fix double counting of ECC stats
SPI-NAND manufacturer drivers:
- Macronix:
- Add support for serial NAND flash
SPI NOR core changes:
- Ability to dump SFDP tables via sysfs
- Support for erasing OTP regions on Winbond and similar flashes
- Few API doc updates and fixes
- Locking support for MX25L12805D
SPI NOR controller drivers changes:
- Use SPI_MODE_X_MASK in nxp-spifi
- Intel Alder Lake-M SPI serial flash support"
* tag 'mtd/for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (125 commits)
mtd: spi-nor: remove redundant continue statement
mtd: rawnand: omap: Add larger page NAND chips support
mtd: rawnand: omap: Various style fixes
mtd: rawnand: omap: Check return values
mtd: rawnand: omap: Rename a macro
mtd: rawnand: omap: Aggregate the HW configuration of the ELM
mtd: rawnand: pl353: Add support for the ARM PL353 SMC NAND controller
dt-bindings: mtd: pl353-nand: Describe this hardware controller
MAINTAINERS: Add PL353 NAND controller entry
mtd: rawnand: qcom: avoid writing to obsolete register
mtd: rawnand: marvell: Minor documentation correction
mtd: rawnand: r852: use DEVICE_ATTR_RO() helper macro
mtd: spinand: add SPI-NAND MTD resume handler
mtd: spinand: Add spinand_init_flash() helper
mtd: spinand: add spinand_read_cfg() helper
mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
mtd: rawnand: arasan: Finer grain NV-DDR configuration
mtd: rawnand: arasan: Rename the data interface register
mtd: rawnand: onfi: Fix endianness when reading NV-DDR values
mtd: rawnand: arasan: Use the right DMA mask
...
Alex Sverdlin [Thu, 1 Jul 2021 15:20:28 +0000 (16:20 +0100)]
ARM: 9098/1: ftrace: MODULE_PLT: Fix build problem without DYNAMIC_FTRACE
FTRACE_ADDR is only defined when CONFIG_DYNAMIC_FTRACE is defined, the
latter is even stronger requirement than CONFIG_FUNCTION_TRACER (which is
enough for MCOUNT_ADDR).
Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
Even though we validate user-provided inputs we then traverse past
validated data when applying the new map. The issue was originally
discovered by Murray McAllister with this simple POC (if the following
is executed by an unprivileged user it will instantly panic the system):
int main(void) {
int fd, ret;
unsigned int buffer[10000];
iov_iter: remove uaccess_kernel() warning from iov_iter_init()
This warning was there to catch any architectures that still use
CONFIG_SET_FS, and that would mis-use iov_iter_init() for anything that
wasn't a proper user space pointer. So that
WARN_ON_ONCE(uaccess_kernel());
makes perfect conceptual sense: you really shouldn't use a kernel
pointer with set_fs(KERNEL_DS) and then pass it to iov_iter_init().
HOWEVER.
Guenter Roeck reports that this warning actually triggers in no-mmu
configurations of both ARM and m68k. And the reason isn't that they
pass in a kernel pointer under set_fs(KERNEL_DS) at all: the reason is
that in those configurations, "uaccess_kernel()" is simply not reliable.
Those no-mmu setups set USER_DS and KERNEL_DS to the same values, so you
can't test for the difference.
so USER_DS and KERNEL_DS have the same value, and uaccess_kernel() is
always trivially true.
The m68k case is slightly different and not quite as obvious. It does
(spread out over multiple header files just to be extra exciting:
asm/processor.h, asm/segment.h and asm-generic/uaccess.h):
but the end result is the same: uaccess_kernel() will always be true,
because USER_DS and KERNEL_DS end up having the same value, even if that
value is defined differently.
This is very arguably a misfeature in those implementations, but in the
end we don't really care. All modern architectures have gotten rid of
set_fs() already, and generic kernel code never uses it. And while the
sanity check was a nice idea, an architecture would have to go the extra
mile to actually break this.
So this well-intentioned warning isn't really all that likely to find
anything but these known false positives, and as such just isn't worth
maintaining.
Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: 0c1da00999e8 ("iov_iter: separate direction from flavour") Cc: Matthew Wilcox <willy@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU updates from Paul McKenney:
- Bitmap parsing support for "all" as an alias for all bits
- Documentation updates
- Miscellaneous fixes, including some that overlap into mm and lockdep
- kvfree_rcu() updates
- mem_dump_obj() updates, with acks from one of the slab-allocator
maintainers
- RCU NOCB CPU updates, including limited deoffloading
- SRCU updates
- Tasks-RCU updates
- Torture-test updates
* 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (78 commits)
tasks-rcu: Make show_rcu_tasks_gp_kthreads() be static inline
rcu-tasks: Make ksoftirqd provide RCU Tasks quiescent states
rcu: Add missing __releases() annotation
rcu: Remove obsolete rcu_read_unlock() deadlock commentary
rcu: Improve comments describing RCU read-side critical sections
rcu: Create an unrcu_pointer() to remove __rcu from a pointer
srcu: Early test SRCU polling start
rcu: Fix various typos in comments
rcu/nocb: Unify timers
rcu/nocb: Prepare for fine-grained deferred wakeup
rcu/nocb: Only cancel nocb timer if not polling
rcu/nocb: Delete bypass_timer upon nocb_gp wakeup
rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup
rcu/nocb: Allow de-offloading rdp leader
rcu/nocb: Directly call __wake_nocb_gp() from bypass timer
rcu: Don't penalize priority boosting when there is nothing to boost
rcu: Point to documentation of ordering guarantees
rcu: Make rcu_gp_cleanup() be noinline for tracing
rcu: Restrict RCU_STRICT_GRACE_PERIOD to at most four CPUs
rcu: Make show_rcu_gp_kthreads() dump rcu_node structures blocking GP
...
Merge tag 'memblock-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport:
"Fix arm crashes caused by holes in the memory map.
The coordination between freeing of unused memory map, pfn_valid() and
core mm assumptions about validity of the memory map in various ranges
was not designed for complex layouts of the physical memory with a lot
of holes all over the place.
Kefen Wang reported crashes in move_freepages() on a system with the
following memory layout [1]:
These crashes can be mitigated by enabling CONFIG_HOLES_IN_ZONE on ARM
and essentially turning pfn_valid_within() to pfn_valid() instead of
having it hardwired to 1 on that architecture, but this would require
to keep CONFIG_HOLES_IN_ZONE solely for this purpose.
A cleaner approach is to update ARM's implementation of pfn_valid() to
take into accounting rounding of the freed memory map to pageblock
boundaries and make sure it returns true for PFNs that have memory map
entries even if there is no physical memory backing those PFNs"
Link: https://lore.kernel.org/lkml/2a1592ad-bc9d-4664-fd19-f7448a37edc0@huawei.com
* tag 'memblock-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
arm: extend pfn_valid to take into account freed memory map alignment
memblock: ensure there is no overflow in memblock_overlaps_region()
memblock: align freed memory map on pageblock boundaries with SPARSEMEM
memblock: free_unused_memmap: use pageblock units instead of MAX_ORDER
Merge tag 's390-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Vasily Gorbik:
- Rework inline asm to get rid of error prone "register asm"
constructs, which are problematic especially when code
instrumentation is enabled.
In particular introduce and use register pair union to allocate
even/odd register pairs. Unfortunately this breaks compatibility with
older clang compilers and minimum clang version for s390 has been
raised to 13.
- Fix gcc 11 warnings, which triggered various minor reworks all over
the code.
- Add zstd kernel image compression support.
- Rework boot CPU lowcore handling.
- De-duplicate and move kernel memory layout setup logic earlier.
- Few fixes in preparation for FORTIFY_SOURCE performing compile-time
and run-time field bounds checking for mem functions.
- Remove broken and unused power management support leftovers in s390
drivers.
- Disable stack-protector for decompressor and purgatory to fix
buildroot build.
- Fix vt220 sclp console name to match the char device name.
- Enable HAVE_IOREMAP_PROT and add zpci_set_irq()/zpci_clear_irq() in
zPCI code.
- Remove some implausible WARN_ON_ONCEs and remove arch specific
counter transaction call backs in favour of default transaction
handling in perf code.
- Extend/add new uevents for online/config/mode state changes of AP
card / queue device in zcrypt.
- Minor entry and ccwgroup code improvements.
- Other small various fixes and improvements all over the code.
* tag 's390-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (91 commits)
s390/dasd: use register pair instead of register asm
s390/qdio: get rid of register asm
s390/ioasm: use symbolic names for asm operands
s390/ioasm: get rid of register asm
s390/cmf: get rid of register asm
s390/lib,string: get rid of register asm
s390/lib,uaccess: get rid of register asm
s390/string: get rid of register asm
s390/cmpxchg: use register pair instead of register asm
s390/mm,pages-states: get rid of register asm
s390/lib,xor: get rid of register asm
s390/timex: get rid of register asm
s390/hypfs: use register pair instead of register asm
s390/zcrypt: Switch to flexible array member
s390/speculation: Use statically initialized const for instructions
virtio/s390: get rid of open-coded kvm hypercall
s390/pci: add zpci_set_irq()/zpci_clear_irq()
scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0 for s390
s390/ipl: use register pair instead of register asm
s390/mem_detect: fix tprot() program check new psw handling
...
Merge tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL (Compute Express Link) updates from Dan Williams:
"This subsystem is still in the build-out phase as the bulk of the
update is improvements to enumeration and fleshing out the device
model. In terms of new features, more mailbox commands have been added
to the allowed-list in support of persistent memory provisioning
support targeting v5.15.
The critical update from an enumeration perspective is support for the
CXL Fixed Memory Window Structure that indicates to Linux which system
physical address ranges decode to the CXL Host Bridges in the system.
This allows the driver to detect which address ranges have been mapped
by firmware and what address ranges are available for future hotplug.
So, again, mostly skeleton this round, with more meat targeting v5.15.
Summary:
- Add support for the CXL Fixed Memory Window Structure, a recent
extension of the ACPI CEDT (CXL Early Discovery Table)
- Bridge CXL persistent memory capabilities to an NVDIMM bus /
device-model
- Switch to fine grained mapping of CXL MMIO registers to allow
different drivers / system software to own individual register
blocks
- Enable media provisioning commands, and publish the label storage
area size in sysfs
- Miscellaneous cleanups and fixes"
* tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (34 commits)
cxl/pci: Rename CXL REGLOC ID
cxl/acpi: Use the ACPI CFMWS to create static decoder objects
cxl/acpi: Add the Host Bridge base address to CXL port objects
cxl/pmem: Register 'pmem' / cxl_nvdimm devices
libnvdimm: Drop unused device power management support
libnvdimm: Export nvdimm shutdown helper, nvdimm_delete()
cxl/pmem: Add initial infrastructure for pmem support
cxl/core: Add cxl-bus driver infrastructure
cxl/pci: Add media provisioning required commands
cxl/component_regs: Fix offset
cxl/hdm: Fix decoder count calculation
cxl/acpi: Introduce cxl_decoder objects
cxl/acpi: Enumerate host bridge root ports
cxl/acpi: Add downstream port data to cxl_port instances
cxl/Kconfig: Default drivers to CONFIG_CXL_BUS
cxl/acpi: Introduce the root of a cxl_port topology
cxl/pci: Fixup devm_cxl_iomap_block() to take a 'struct device *'
cxl/pci: Add HDM decoder capabilities
cxl/pci: Reserve individual register block regions
cxl/pci: Map registers based on capabilities
...
Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- core supports now bus regulators controlling power for SCL/SDA
- quite some DT binding conversions to YAML
- added a seperate DT binding for the optional SMBus Alert feature
- documentation with examples how to deal with I2C sysfs files
- some bigger rework for the i801 driver
- and a few usual driver updates
* 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (42 commits)
i2c: ali1535: mention that the device should not be disabled
i2c: mpc: Restore reread of I2C status register
i2c: core-smbus: Expose PEC calculate function for generic use
Documentation: i2c: Add doc for I2C sysfs
i2c: core: Disable client irq on reboot/shutdown
dt-bindings: i2c: update bindings for MT8195 SoC
i2c: imx: Fix some checkpatch warnings
i2c: davinci: Simplify with dev_err_probe()
i2c: cadence: Simplify with dev_err_probe()
i2c: xiic: Simplify with dev_err_probe()
i2c: cadence: Clear HOLD bit before xfer_size register rolls over
dt-bindings: i2c: ce4100: Replace "ti,pcf8575" by "nxp,pcf8575"
i2c: i801: Improve i801_setup_hstcfg
i2c: i801: Use driver name constant instead of function dev_driver_string
i2c: i801: Simplify initialization of i2c_board_info in i801_probe_optional_slaves
i2c: i801: Improve status polling
i2c: cht-wc: Replace of_node by NULL
i2c: riic: Add RZ/G2L support
dt-bindings: i2c: renesas,riic: Document RZ/G2L I2C controller
dt-bindings: i2c: renesas,iic: Convert to json-schema
...
Commit 732a69c98d97 ("scsi: blkcg: Add app identifier support for
blkcg") introduced an FC_APPID config option under SCSI. However, the
added config option is not used anywhere. Simply remove it.
The block layer BLK_CGROUP_FC_APPID config option is what actually
controls whether the application ID code should be built or not. Make
this option dependent on NVMe over FC since that is currently the only
transport which supports the capability.
Fixes: 732a69c98d97 ("scsi: blkcg: Add app identifier support for blkcg") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Guo Ren [Tue, 4 May 2021 06:08:44 +0000 (14:08 +0800)]
csky: syscache: Fixup duplicate cache flush
The current csky logic of sys_cacheflush is wrong, it'll cause
icache flush call dcache flush again. Now fixup it with a
conditional "break & fallthrough".
Namjae Jeon [Fri, 11 Jun 2021 00:40:24 +0000 (09:40 +0900)]
exfat: handle wrong stream entry size in exfat_readdir()
The compatibility issue between linux exfat and exfat of some camera
company was reported from Florian. In their exfat, if the number of files
exceeds any limit, the DataLength in stream entry of the directory is
no longer updated. So some files created from camera does not show in
linux exfat. because linux exfat doesn't allow that cpos becomes larger
than DataLength of stream entry. This patch check DataLength in stream
entry only if the type is ALLOC_NO_FAT_CHAIN and add the check ensure
that dentry offset does not exceed max dentries size(256 MB) to avoid
the circular FAT chain issue.
Fixes: c73dcdd94811 ("exfat: add directory operations") Cc: stable@vger.kernel.org # v5.9 Reported-by: Florian Cramer <flrncrmr@gmail.com> Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com> Tested-by: Chris Down <chris@chrisdown.name> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Merge tag 'leds-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"This contains quite a lot of fixes, with more fixes in my inbox that
did not make it (sorry)"
* tag 'leds-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (36 commits)
leds: lgm: Fix up includes
leds: ktd2692: Fix an error handling path
leds: as3645a: Fix error return code in as3645a_parse_node()
leds: turris-omnia: add missing MODULE_DEVICE_TABLE
leds: lp55xx: Initialize enable GPIO direction to output
leds: lm36274: Add missed property.h
leds: el15203000: Make error handling more robust
leds: pwm: Make error handling more robust
leds: lt3593: Make use of device properties
leds: lp50xx: Put fwnode in error case during ->probe()
leds: lm3697: Don't spam logs when probe is deferred
leds: lm3692x: Put fwnode in any case during ->probe()
leds: lm36274: Correct headers (of*.h -> mod_devicetable.h)
leds: lm36274: Put fwnode in error case during ->probe()
leds: lm3532: Make error handling more robust
leds: lm3532: select regmap I2C API
leds: lgm-sso: Drop duplicate NULL check for GPIO operations
leds: lgm-sso: Remove unneeded of_match_ptr()
leds: lgm-sso: Fix clock handling
leds: el15203000: Introduce to_el15203000_led() helper
...
* tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfio:
vfio/pci: Handle concurrent vma faults
vfio/mtty: Enforce available_instances
vfio/mtty: Delete mdev_devices_list
vfio: use the new pci_dev_trylock() helper to simplify try lock
PCI: Export pci_dev_trylock() and pci_dev_unlock()
vfio/mdpy: Fix memory leak of object mdev_state->vconfig
vfio/iommu_type1: rename vfio_group struck to vfio_iommu_group
vfio/mbochs: Convert to use vfio_register_group_dev()
vfio/mdpy: Convert to use vfio_register_group_dev()
vfio/mtty: Convert to use vfio_register_group_dev()
vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind
vfio/mdev: Remove CONFIG_VFIO_MDEV_DEVICE
driver core: Export device_driver_attach()
driver core: Don't return EPROBE_DEFER to userspace during sysfs bind
driver core: Flow the return code from ->probe() through to sysfs bind
driver core: Better distinguish probe errors in really_probe
driver core: Pull required checks into driver_probe_device()
vfio/platform: remove unneeded parent_module attribute
vfio: centralize module refcount in subsystem layer
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs name lookup updates from Al Viro:
"Small namei.c patch series, mostly to simplify the rules for nameidata
state. It's actually from the previous cycle - but I didn't post it
for review in time...
Changes visible outside of fs/namei.c: file_open_root() calling
conventions change, some freed bits in LOOKUP_... space"
* 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
namei: make sure nd->depth is always valid
teach set_nameidata() to handle setting the root as well
take LOOKUP_{ROOT,ROOT_GRABBED,JUMPED} out of LOOKUP_... space
switch file_open_root() to struct path
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull iov_iter updates from Al Viro:
"iov_iter cleanups and fixes.
There are followups, but this is what had sat in -next this cycle. IMO
the macro forest in there became much thinner and easier to follow..."
* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
csum_and_copy_to_pipe_iter(): leave handling of csum_state to caller
clean up copy_mc_pipe_to_iter()
pipe_zero(): we don't need no stinkin' kmap_atomic()...
iov_iter: clean csum_and_copy_...() primitives up a bit
copy_page_from_iter(): don't need kmap_atomic() for kvec/bvec cases
copy_page_to_iter(): don't bother with kmap_atomic() for bvec/kvec cases
iterate_xarray(): only of the first iteration we might get offset != 0
pull handling of ->iov_offset into iterate_{iovec,bvec,xarray}
iov_iter: make iterator callbacks use base and len instead of iovec
iov_iter: make the amount already copied available to iterator callbacks
iov_iter: get rid of separate bvec and xarray callbacks
iov_iter: teach iterate_{bvec,xarray}() about possible short copies
iterate_bvec(): expand bvec.h macro forest, massage a bit
iov_iter: unify iterate_iovec and iterate_kvec
iov_iter: massage iterate_iovec and iterate_kvec to logics similar to iterate_bvec
iterate_and_advance(): get rid of magic in case when n is 0
csum_and_copy_to_iter(): massage into form closer to csum_and_copy_from_iter()
iov_iter: replace iov_iter_copy_from_user_atomic() with iterator-advancing variant
[xarray] iov_iter_npages(): just use DIV_ROUND_UP()
iov_iter_npages(): don't bother with iterate_all_kinds()
...
Merge branch 'work.d_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs d_path() updates from Al Viro:
"d_path.c refactoring"
* 'work.d_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
getcwd(2): clean up error handling
d_path: prepend_path() is unlikely to return non-zero
d_path: prepend_path(): lift the inner loop into a new helper
d_path: prepend_path(): lift resetting b in case when we'd return 3 out of loop
d_path: prepend_path(): get rid of vfsmnt
d_path: introduce struct prepend_buffer
d_path: make prepend_name() boolean
d_path: lift -ENAMETOOLONG handling into callers of prepend_path()
d_path: don't bother with return value of prepend()
getcwd(2): saner logics around prepend_path() call
d_path: get rid of path_with_deleted()
d_path: regularize handling of root dentry in __dentry_path()
d_path: saner calling conventions for __dentry_path()
d_path: "\0" is {0,0}, not {0}
Merge tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
- Added option for per CPU threads to the hwlat tracer
- Have hwlat tracer handle hotplug CPUs
- New tracer: osnoise, that detects latency caused by interrupts,
softirqs and scheduling of other tasks.
- Added timerlat tracer that creates a thread and measures in detail
what sources of latency it has for wake ups.
- Removed the "success" field of the sched_wakeup trace event. This has
been hardcoded as "1" since 2015, no tooling should be looking at it
now. If one exists, we can revert this commit, fix that tool and try
to remove it again in the future.
- tgid mapping fixed to handle more than PID_MAX_DEFAULT pids/tgids.
- New boot command line option "tp_printk_stop", as tp_printk causes
trace events to write to console. When user space starts, this can
easily live lock the system. Having a boot option to stop just after
boot up is useful to prevent that from happening.
- Have ftrace_dump_on_oops boot command line option take numbers that
match the numbers shown in /proc/sys/kernel/ftrace_dump_on_oops.
- Bootconfig clean ups, fixes and enhancements.
- New ktest script that tests bootconfig options.
- Add tracepoint_probe_register_may_exist() to register a tracepoint
without triggering a WARN*() if it already exists. BPF has a path
from user space that can do this. All other paths are considered a
bug.
- Small clean ups and fixes
* tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (49 commits)
tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT
tracing: Simplify & fix saved_tgids logic
treewide: Add missing semicolons to __assign_str uses
tracing: Change variable type as bool for clean-up
trace/timerlat: Fix indentation on timerlat_main()
trace/osnoise: Make 'noise' variable s64 in run_osnoise()
tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
tracing: Fix spelling in osnoise tracer "interferences" -> "interference"
Documentation: Fix a typo on trace/osnoise-tracer
trace/osnoise: Fix return value on osnoise_init_hotplug_support
trace/osnoise: Make interval u64 on osnoise_main
trace/osnoise: Fix 'no previous prototype' warnings
tracing: Have osnoise_main() add a quiescent state for task rcu
seq_buf: Make trace_seq_putmem_hex() support data longer than 8
seq_buf: Fix overflow in seq_buf_putmem_hex()
trace/osnoise: Support hotplug operations
trace/hwlat: Support hotplug operations
trace/hwlat: Protect kdata->kthread with get/put_online_cpus
trace: Add timerlat tracer
trace: Add osnoise tracer
...
This commit causes watchdog lockups on my machine, and while I have no
idea what the cause is, it bisected right to this commit, and reverting
the change promptly fixes it.
At least occasionally one of the watchdog call traces was
so presumably it's a locking error on that substream spinlock that
snd_pcm_period_elapsed() takes. But at this point I just want to have a
working system so that I can continue the merge window work tomorrow.
Merge tag 'sound-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"As the diffstat scatters over the tree, we've got many tree-wide small
changes, but also got quite a few intrusive changes in the core side.
The only ABI-visible core change is the new rawmidi framing mode
support while others are kernel-internal, mostly code refactoring
and/or nice improvements.
Here are some highlights:
Core:
- A new framing access mode for rawmidi to get timestamps
- Cleanup / refactoring of buffer memory management helper code
- Support for automatic negotiation of ASoC DAI formats
- Revival of software suspend for PCM and control core, as a
preliminary work for PCI BAR rescan support
ASoC:
- Accessory detection support for several Qualcomm parts
- Support for IEC958 control with hdmi-codec
- Merging of Tegra machine drivers into a single driver
- Support for AmLogic SM1 TOACODEC, Intel AlderLake-M, several NXP
i.MX8 variants, NXP TFA1 and TDF9897, Rockchip RK817, Qualcomm
Quinary MI2S, Texas Instruments TAS2505
USB-audio:
- Reduction of latency at playback start
- Code cleanup / fixes of usx2y driver
- Scarlett2 mixer code fixes and enhancements
- Quirks for Ozone and Denon devices
HD-audio:
- A few quirks for HP and ASUS machines
- Display power management fixes
* tag 'sound-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits)
ALSA: usb-audio: scarlett2: Fix for loop increment in scarlett2_usb_get_config
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8
ALSA: hda/realtek - Add ALC285 HP init procedure
ALSA: hda/realtek - Add type for ALC287
ALSA: scarlett2: Fix scarlett2_*_ctl_put() return values again
ALSA: scarlett2: Fix pad count for 18i8 Gen 3
ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC
ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT_STREAM stream is found
ASoC: qcom: lpass-cpu: mark IRQ_CLEAR register as volatile and readable
ALSA: hda: Release codec display power during shutdown/reboot
ALSA: hda: Release controller display power during shutdown/reboot
ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too
ASoC: fsl: remove unnecessary oom message
ASoC: tlv320aic32x4: dt-bindings: add TAS2505 to compatible
ASoC: tlv320aic32x4: add support for TAS2505
ASoC: tlv320aic32x4: add type to device private data struct
ASoC: tegra30: ahub: Use devm_platform_get_and_ioremap_resource()
ASoC: tegra: tegra210_admaif: Use devm_platform_get_and_ioremap_resource()
...
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This series consists of the usual driver updates (ufs, ibmvfc,
megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with
elx and mpi3mr being new drivers.
The major core change is a rework to drop the status byte handling
macros and the old bit shifted definitions and the rest of the updates
are minor fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (287 commits)
scsi: aha1740: Avoid over-read of sense buffer
scsi: arcmsr: Avoid over-read of sense buffer
scsi: ips: Avoid over-read of sense buffer
scsi: ufs: ufs-mediatek: Add missing of_node_put() in ufs_mtk_probe()
scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame()
scsi: elx: libefc: Fix less than zero comparison of a unsigned int
scsi: elx: efct: Fix pointer error checking in debugfs init
scsi: elx: efct: Fix is_originator return code type
scsi: elx: efct: Fix link error for _bad_cmpxchg
scsi: elx: efct: Eliminate unnecessary boolean check in efct_hw_command_cancel()
scsi: elx: efct: Do not use id uninitialized in efct_lio_setup_session()
scsi: elx: efct: Fix error handling in efct_hw_init()
scsi: elx: efct: Remove redundant initialization of variable lun
scsi: elx: efct: Fix spelling mistake "Unexected" -> "Unexpected"
scsi: lpfc: Fix build error in lpfc_scsi.c
scsi: target: iscsi: Remove redundant continue statement
scsi: qla4xxx: Remove redundant continue statement
scsi: ppa: Switch to use module_parport_driver()
scsi: imm: Switch to use module_parport_driver()
scsi: mpt3sas: Fix error return value in _scsih_expander_add()
...
Merge tag 'xfs-5.14-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"Most of the work this cycle has been on refactoring various parts of
the codebase. The biggest non-cleanup changes are (1) reducing the
number of cache flushes sent when writing the log; (2) a substantial
number of log recovery fixes; and (3) I started accepting pull
requests from contributors if the commits in their branches match
what's been sent to the list.
For a week or so I /had/ staged a major cleanup of the logging code
from Dave Chinner, but it exposed so many lurking bugs in other parts
of the logging and log recovery code that I decided to defer that
patchset until we can address those latent bugs.
Larger cleanups this time include walking the incore inode cache (me)
and rework of the extended attribute code (Allison) to prepare it for
adding logged xattr updates (and directory tree parent pointers) in
future releases.
Summary:
- Refactor the buffer cache to use bulk page allocation
- Convert agnumber-based AG iteration to walk per-AG structures
- Clean up some unit conversions and other code warts
- Reduce spinlock contention in the directio fastpath
- Collapse all the inode cache walks into a single function
- Remove indirect function calls from the inode cache walk code
- Dramatically reduce the number of cache flushes sent when writing
log buffers
- Preserve inode sickness reports for longer
- Rename xfs_eofblocks since it controls inode cache walks
- Refactor the extended attribute code to prepare it for the addition
of log intent items to make xattrs fully transactional
- A few fixes to earlier large patchsets
- Log recovery fixes so that we don't accidentally mark the log clean
when log intent recovery fails
- Fix some latent SOB errors
- Clean up shutdown messages that get logged to dmesg
- Fix a regression in the online shrink code
- Fix a UAF in the buffer logging code if the fs goes offline
- Fix uninitialized error variables
- Fix a UAF in the CIL when commited log item callbacks race with a
shutdown
- Fix a bug where the CIL could hang trying to push part of the log
ring buffer that hasn't been filled yet"
* tag 'xfs-5.14-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (102 commits)
xfs: don't wait on future iclogs when pushing the CIL
xfs: Fix a CIL UAF by getting get rid of the iclog callback lock
xfs: remove callback dequeue loop from xlog_state_do_iclog_callbacks
xfs: don't nest icloglock inside ic_callback_lock
xfs: Initialize error in xfs_attr_remove_iter
xfs: fix endianness issue in xfs_ag_shrink_space
xfs: remove dead stale buf unpin handling code
xfs: hold buffer across unpin and potential shutdown processing
xfs: force the log offline when log intent item recovery fails
xfs: fix log intent recovery ENOSPC shutdowns when inactivating inodes
xfs: shorten the shutdown messages to a single line
xfs: print name of function causing fs shutdown instead of hex pointer
xfs: fix type mismatches in the inode reclaim functions
xfs: separate primary inode selection criteria in xfs_iget_cache_hit
xfs: refactor the inode recycling code
xfs: add iclog state trace events
xfs: xfs_log_force_lsn isn't passed a LSN
xfs: Fix CIL throttle hang when CIL space used going backwards
xfs: journal IO cache flush reductions
xfs: remove need_start_rec parameter from xlog_write()
...
Merge tag 'configfs-5.13' of git://git.infradead.org/users/hch/configfs
Pull configfs updates from Christoph Hellwig:
- fix a memleak in configfs_release_bin_file (Chung-Chiang Cheng)
- implement the .read_iter and .write_iter (Bart Van Assche)
- minor cleanups (Bart Van Assche, me)
* tag 'configfs-5.13' of git://git.infradead.org/users/hch/configfs:
configfs: simplify configfs_release_bin_file
configfs: fix memleak in configfs_release_bin_file
configfs: implement the .read_iter and .write_iter methods
configfs: drop pointless kerneldoc comments
configfs: fix the kerneldoc comment for configfs_create_bin_file
Merge tag 'dma-mapping-5.14' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- a trivivial whitespace fix (Zhen Lei)
- report -EEXIST errors in add_dma_entry (Hamza Mahfooz)
* tag 'dma-mapping-5.14' of git://git.infradead.org/users/hch/dma-mapping:
dma-debug: report -EEXIST errors in add_dma_entry
dma-mapping: remove a trailing space
Merge tag 'iommu-updates-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- SMMU Updates from Will Deacon:
- SMMUv3:
- Support stalling faults for platform devices
- Decrease defaults sizes for the event and PRI queues
- SMMUv2:
- Support for a new '->probe_finalize' hook, needed by Nvidia
- Even more Qualcomm compatible strings
- Avoid Adreno TTBR1 quirk for DB820C platform
- Intel VT-d updates from Lu Baolu:
- Convert Intel IOMMU to use sva_lib helpers in iommu core
- ftrace and debugfs supports for page fault handling
- Support asynchronous nested capabilities
- Various misc cleanups
- Support for new VIOT ACPI table to make the VirtIO IOMMU
available on x86
- Add the amd_iommu=force_enable command line option to enable
the IOMMU on platforms where they are known to cause problems
- Support for version 2 of the Rockchip IOMMU
- Various smaller fixes, cleanups and refactorings
* tag 'iommu-updates-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits)
iommu/virtio: Enable x86 support
iommu/dma: Pass address limit rather than size to iommu_setup_dma_ops()
ACPI: Add driver for the VIOT table
ACPI: Move IOMMU setup code out of IORT
ACPI: arm64: Move DMA setup operations out of IORT
iommu/vt-d: Fix dereference of pointer info before it is null checked
iommu: Update "iommu.strict" documentation
iommu/arm-smmu: Check smmu->impl pointer before dereferencing
iommu/arm-smmu-v3: Remove unnecessary oom message
iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation
iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails
iommu/vt-d: Fix linker error on 32-bit
iommu/vt-d: No need to typecast
iommu/vt-d: Define counter explicitly as unsigned int
iommu/vt-d: Remove unnecessary braces
iommu/vt-d: Removed unused iommu_count in dmar domain
iommu/vt-d: Use bitfields for DMAR capabilities
iommu/vt-d: Use DEVICE_ATTR_RO macro
iommu/vt-d: Fix out-bounds-warning in intel/svm.c
iommu/vt-d: Add PRQ handling latency sampling
...
Merge tag 'linux-kselftest-next-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest update from Shuah Khan:
"Fixes to existing tests and framework:
- migrate sgx test to kselftest harness
- add new test cases to sgx test
- ftrace test fix event-no-pid on 1-core machine
- splice test adjust for handler fallback removal"
* tag 'linux-kselftest-next-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/sgx: remove checks for file execute permissions
selftests/ftrace: fix event-no-pid on 1-core machine
selftests/sgx: Refine the test enclave to have storage
selftests/sgx: Add EXPECT_EEXIT() macro
selftests/sgx: Dump enclave memory map
selftests/sgx: Migrate to kselftest harness
selftests/sgx: Rename 'eenter' and 'sgx_call_vdso'
selftests: timers: rtcpie: skip test if default RTC device does not exist
selftests: lib.mk: Also install "config" and "settings"
selftests: splice: Adjust for handler fallback removal
selftests/tls: Add {} to avoid static checker warning
selftests/resctrl: Fix incorrect parsing of option "-t"
- code organization moving default config to tools/testing/kunit
- refactor of internal parser input handling
- cleanups and updates to documentation
- code cleanup related to casts"
* tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits)
kunit: add unit test for filtering suites by names
kasan: test: make use of kunit_skip()
kunit: test: Add example tests which are always skipped
kunit: tool: Support skipped tests in kunit_tool
kunit: Support skipped tests
thunderbolt: test: Reinstate a few casts of bitfields
kunit: tool: internal refactor of parser input handling
lib/test: convert lib/test_list_sort.c to use KUnit
kunit: introduce kunit_kmalloc_array/kunit_kcalloc() helpers
kunit: Remove the unused all_tests.config
kunit: Move default config from arch/um -> tools/testing/kunit
kunit: arch/um/configs: Enable KUNIT_ALL_TESTS by default
kunit: Add gnu_printf specifiers
lib/cmdline_kunit: Remove a cast which are no-longer required
kernel/sysctl-test: Remove some casts which are no-longer required
thunderbolt: test: Remove some casts which are no longer required
mmc: sdhci-of-aspeed: Remove some unnecessary casts from KUnit tests
iio: Remove a cast in iio-test-format which is no longer required
device property: Remove some casts in property-entry-test
Documentation: kunit: Clean up some string casts in examples
...
Merge tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- A big series refactoring parts of our KVM code, and converting some
to C.
- Support for ARCH_HAS_SET_MEMORY, and ARCH_HAS_STRICT_MODULE_RWX on
some CPUs.
- Support for the Microwatt soft-core.
- Optimisations to our interrupt return path on 64-bit.
- Support for userspace access to the NX GZIP accelerator on PowerVM on
Power10.
- Enable KUAP and KUEP by default on 32-bit Book3S CPUs.
- Other smaller features, fixes & cleanups.
Thanks to: Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Athira
Rajeev, Baokun Li, Benjamin Herrenschmidt, Bharata B Rao, Christophe
Leroy, Daniel Axtens, Daniel Henrique Barboza, Finn Thain, Geoff Levand,
Haren Myneni, Jason Wang, Jiapeng Chong, Joel Stanley, Jordan Niethe,
Kajol Jain, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas
Piggin, Nick Desaulniers, Paul Mackerras, Russell Currey, Sathvika
Vasireddy, Shaokun Zhang, Stephen Rothwell, Sudeep Holla, Suraj Jitindar
Singh, Tom Rix, Vaibhav Jain, YueHaibing, Zhang Jianhua, and Zhen Lei.
* tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (218 commits)
powerpc: Only build restart_table.c for 64s
powerpc/64s: move ret_from_fork etc above __end_soft_masked
powerpc/64s/interrupt: clean up interrupt return labels
powerpc/64/interrupt: add missing kprobe annotations on interrupt exit symbols
powerpc/64: enable MSR[EE] in irq replay pt_regs
powerpc/64s/interrupt: preserve regs->softe for NMI interrupts
powerpc/64s: add a table of implicit soft-masked addresses
powerpc/64e: remove implicit soft-masking and interrupt exit restart logic
powerpc/64e: fix CONFIG_RELOCATABLE build warnings
powerpc/64s: fix hash page fault interrupt handler
powerpc/4xx: Fix setup_kuep() on SMP
powerpc/32s: Fix setup_{kuap/kuep}() on SMP
powerpc/interrupt: Use names in check_return_regs_valid()
powerpc/interrupt: Also use exit_must_hard_disable() on PPC32
powerpc/sysfs: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE
powerpc/ptrace: Refactor regs_set_return_{msr/ip}
powerpc/ptrace: Move set_return_regs_changed() before regs_set_return_{msr/ip}
powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
powerpc/pseries/vas: Include irqdomain.h
powerpc: mark local variables around longjmp as volatile
...
Merge tag 'asm-generic-unaligned-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm/unaligned.h unification from Arnd Bergmann:
"Unify asm/unaligned.h around struct helper
The get_unaligned()/put_unaligned() helpers are traditionally
architecture specific, with the two main variants being the
"access-ok.h" version that assumes unaligned pointer accesses always
work on a particular architecture, and the "le-struct.h" version that
casts the data to a byte aligned type before dereferencing, for
architectures that cannot always do unaligned accesses in hardware.
Based on the discussion linked below, it appears that the access-ok
version is not realiable on any architecture, but the struct version
probably has no downsides. This series changes the code to use the
same implementation on all architectures, addressing the few
exceptions separately"
Merge tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tool updates from Arnaldo Carvalho de Melo:
"Tools:
- Add cgroup support for 'perf top' (-G).
- Add support for KVM MSRs in 'perf kvm stat'
- Support probes on init functions in 'perf probe', to support the
bootconfig format.
- Improve error reporting in 'perf probe'.
- No need to synthesize BUILD_ID records in 'perf inject' if the
MMAP2 records have build ids already.
- Allow toggling source code ('s' hotkey) in 'perf annotate' in all
lines.
- Add itrace options support to 'perf annotate'.
- Support to custom DSO filters for 'perf script'.
Hardware enablement:
- Support the HYBRID_TOPOLOGY and HYBRID_CPU_PMU_CAPS features in the
perf.data file header.
- Support PMU prefix for mem-load and mem-store events, to support
hybrid (BIG little) CPUs such as Intel's Alderlake.
- Support hybrid CPUs in 'perf mem' and 'perf c2c'.
Hardware tracing:
- Intel PT now supports tracing KVM guests.
- Timestamp improvements for ARM's Coresight.
Build:
- Add 'make -C tools/perf build-test' entries for
libopencsd/CORESIGHT=1 and libbpf/LIBBPF_DYNAMIC=1.
- Use bison's --file-prefix-map option to avoid storing full paths
when using O= in the perf build.
Tests:
- Improve the 'perf test' entries for libpfm4 and BPF counters.
Misc:
- Sync msr-index.h, mount.h, kvm headers with the kernel originals.
- Add vendor events and metrics for Intel's Icelake Server & Client"
* tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (123 commits)
perf session: Add missing evlist__delete when deleting a session
perf annotate: Allow 's' on source code lines
perf dlfilter: Add object_code() to perf_dlfilter_fns
perf dlfilter: Add attr() to perf_dlfilter_fns
perf dlfilter: Add srcline() to perf_dlfilter_fns
perf dlfilter: Add insn() to perf_dlfilter_fns
perf dlfilter: Add resolve_address() to perf_dlfilter_fns
perf build: Install perf_dlfilter.h
perf script: Add option to pass arguments to dlfilters
perf script: Add option to list dlfilters
perf script: Add dlfilter__filter_event_early()
perf script: Add API for filtering via dynamically loaded shared object
perf llvm: Return -ENOMEM when asprintf() fails
perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events()
tools headers UAPI: Synch KVM's svm.h header with the kernel
tools kvm headers arm64: Update KVM headers from the kernel sources
tools headers UAPI: Sync linux/kvm.h with the kernel sources
tools headers cpufeatures: Sync with the kernel sources
tools include UAPI: Update linux/mount.h copy
tools arch x86: Sync the msr-index.h copy with the kernel sources
...
Merge more updates from Andrew Morton:
"190 patches.
Subsystems affected by this patch series: mm (hugetlb, userfaultfd,
vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock,
migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap,
zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc,
core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs,
signals, exec, kcov, selftests, compress/decompress, and ipc"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits)
ipc/util.c: use binary search for max_idx
ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock
ipc: use kmalloc for msg_queue and shmid_kernel
ipc sem: use kvmalloc for sem_undo allocation
lib/decompressors: remove set but not used variabled 'level'
selftests/vm/pkeys: exercise x86 XSAVE init state
selftests/vm/pkeys: refill shadow register after implicit kernel write
selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
kcov: add __no_sanitize_coverage to fix noinstr for all architectures
exec: remove checks in __register_bimfmt()
x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned
hfsplus: report create_date to kstat.btime
hfsplus: remove unnecessary oom message
nilfs2: remove redundant continue statement in a while-loop
kprobes: remove duplicated strong free_insn_page in x86 and s390
init: print out unknown kernel parameters
checkpatch: do not complain about positive return values starting with EPOLL
checkpatch: improve the indented label test
checkpatch: scripts/spdxcheck.py now requires python3
...
Al Cooper [Thu, 24 Jun 2021 16:30:45 +0000 (12:30 -0400)]
mmc: sdhci: Fix warning message when accessing RPMB in HS400 mode
When an eMMC device is being run in HS400 mode, any access to the
RPMB device will cause the error message "mmc1: Invalid UHS-I mode
selected". This happens as a result of tuning being disabled before
RPMB access and then re-enabled after the RPMB access is complete.
When tuning is re-enabled, the system has to switch from HS400
to HS200 to do the tuning and then back to HS400. As part of
sequence to switch from HS400 to HS200 the system is temporarily
put into HS mode. When switching to HS mode, sdhci_get_preset_value()
is called and does not have support for HS mode and prints the warning
message and returns the preset for SDR12. The fix is to add support
for MMC and SD HS modes to sdhci_get_preset_value().
This can be reproduced on any system running eMMC in HS400 mode
(not HS400ES) by using the "mmc" utility to run the following
command: "mmc rpmb read-counter /dev/mmcblk0rpmb".
Signed-off-by: Al Cooper <alcooperx@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Fixes: 61a1fe06d952 ("mmc: sdhci: enhance preset value function") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210624163045.33651-1-alcooperx@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Chris Packham [Fri, 2 Jul 2021 03:27:24 +0000 (15:27 +1200)]
i2c: mpc: Restore reread of I2C status register
Prior to commit 4a1b33014624 ("i2c: mpc: Interrupt driven transfer") the
old interrupt handler would reread MPC_I2C_SR after checking the CSR_MIF
bit. When the driver was re-written this was removed as it seemed
unnecessary. However as it turns out this is necessary for i2c devices
which do clock stretching otherwise we end up thinking the bus is still
busy when processing the interrupt.
Fixes: 4a1b33014624 ("i2c: mpc: Interrupt driven transfer") Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Wolfram Sang <wsa@kernel.org>
Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
Pull percpu updates from Dennis Zhou:
- percpu chunk depopulation - depopulate backing pages for chunks with
empty pages when we exceed a global threshold without those pages.
This lets us reclaim a portion of memory that would previously be
lost until the full chunk would be freed (possibly never).
- memcg accounting cleanup - previously separate chunks were managed
for normal allocations and __GFP_ACCOUNT allocations. These are now
consolidated which cleans up the code quite a bit.
- a few misc clean ups for clang warnings
* 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
percpu: optimize locking in pcpu_balance_workfn()
percpu: initialize best_upa variable
percpu: rework memcg accounting
mm, memcg: introduce mem_cgroup_kmem_disabled()
mm, memcg: mark cgroup_memory_nosocket, nokmem and noswap as __ro_after_init
percpu: make symbol 'pcpu_free_slot' static
percpu: implement partial chunk depopulation
percpu: use pcpu_free_slot instead of pcpu_nr_slots - 1
percpu: factor out pcpu_check_block_hint()
percpu: split __pcpu_balance_workfn()
percpu: fix a comment about the chunks ordering
Merge tag 'mips_5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Thomas Bogendoerfer:
- add support for OpeneEmbed SOM9331 board
- Ingenic fixes/improvments
- other fixes and cleanups
* tag 'mips_5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (39 commits)
MIPS: Fix PKMAP with 32-bit MIPS huge page support
MIPS: CI20: Add second percpu timer for SMP.
MIPS: CI20: Reduce clocksource to 750 kHz.
MIPS: Ingenic: Add MAC syscon nodes for Ingenic SoCs.
dt-bindings: clock: Add documentation for MAC PHY control bindings.
MIPS: X1830: Respect cell count of common properties.
MIPS: set mips32r5 for virt extensions
MIPS: loongsoon64: Reserve memory below starting pfn to prevent Oops
MIPS: MT extensions are not available on MIPS32r1
mips/kvm: Use BUG_ON instead of if condition followed by BUG
MIPS: OCTEON: octeon-usb: Use devm_platform_get_and_ioremap_resource()
MIPS: add PMD table accounting into MIPS'pmd_alloc_one
MIPS: Loongson64: fix spelling of SPDX tag
MIPS: ingenic: rs90: Add dedicated VRAM memory region
MIPS: ingenic: gcw0: Set codec to cap-less mode for FM radio
MIPS: ingenic: jz4780: Fix I2C nodes to match DT doc
MIPS: ingenic: Select CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
MIPS: Kconfig: ingenic: Ensure MACH_INGENIC_GENERIC selects all SoCs
MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B)
MIPS: boot: Support specifying UART port on Ingenic SoCs
...
Merge tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"This is the bulk of pin control changes for the v5.14 kernel. Not so
much going on. No core changes, just drivers.
The most interesting would be that MIPS Ralink is migrating to pin
control and we have some bindings but not yet code for the Apple M1
pin controller.
New drivers:
- Last merge window we created a driver for the Ralink RT2880. We are
now moving the Ralink SoC pin control drivers out of the MIPS
architecture code and into the pin control subsystem. This concerns
RT288X, MT7620, RT305X, RT3883 and MT7621.
- Qualcomm SM6125 SoC pin control driver.
- Qualcomm spmi-gpio support for PM7325.
- Qualcomm spmi-mpp also handles PMI8994 (just a compatible string)
- Mediatek MT8365 SoC pin controller.
- New device HID for the AMD GPIO controller.
Improvements:
- Pin bias config support for a slew of Renesas pin controllers.
- Incremental improvements and non-urgent bug fixes to the Renesas
SoC drivers.
- Implement irq_set_wake on the AMD pin controller so we can wake up
from external pin events.
Misc:
- Devicetree bindings for the Apple M1 pin controller, we will
probably see a proper driver for this soon as well"
* tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (54 commits)
pinctrl: ralink: rt305x: add missing include
pinctrl: stm32: check for IRQ MUX validity during alloc()
pinctrl: zynqmp: some code cleanups
drivers: qcom: pinctrl: Add pinctrl driver for sm6125
dt-bindings: pinctrl: qcom: sm6125: Document SM6125 pinctrl driver
dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios
pinctrl: mcp23s08: Add optional reset GPIO
pinctrl: mediatek: fix mode encoding
pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq()
pinctrl: bcm: Constify static pinmux_ops
pinctrl: bcm: Constify static pinctrl_ops
pinctrl: ralink: move RT288X SoC pinmux config into a new 'pinctrl-rt288x.c' file
pinctrl: ralink: move MT7620 SoC pinmux config into a new 'pinctrl-mt7620.c' file
pinctrl: ralink: move RT305X SoC pinmux config into a new 'pinctrl-rt305x.c' file
pinctrl: ralink: move RT3883 SoC pinmux config into a new 'pinctrl-rt3883.c' file
pinctrl: ralink: move MT7621 SoC pinmux config into a new 'pinctrl-mt7621.c' file
pinctrl: ralink: move ralink architecture pinmux header into the driver
pinctrl: single: config: enable the pin's input
pinctrl: mtk: Fix mt8365 Kconfig dependency
pinctrl: mcp23s08: fix race condition in irq handler
...
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"This contains a replacement driver for Intel iWarp hardware. This new
driver supports the old ethernet hardware and also newer chips that
can do ROCE.
Other than that, this contains the typical mix of patches:
- Driver updates and cleanups for bnxt_re, cxgb4, mlx4, and mlx5
- Many static checker driven code clean ups, including a wide
refcount_t conversion
- Several series for the hns driver, more HIP09 HW capabilities,
migration to new HW register manipulators, and code cleanups
- Minor fixes and improvements in srp, rts, and cm
- Improvements throughout for sysfs related code to use
DEVICE_ATTR_*, make the ib_port sysfs first-class, and overall use
sysfs APIs properly
- Intel's new irdma driver replacing i40iw
- rxe general clean ups and Memory Window support"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (211 commits)
RDMA/core: Always release restrack object
RDMA/mlx5: Don't access NULL-cleared mpi pointer
RDMA/irdma: Fix potential overflow expression in irdma_prm_get_pbles
RDMA/irdma: Check contents of user-space irdma_mem_reg_req object
RDMA/rxe: Missing unlock on error in get_srq_wqe()
RDMA/cma: Fix rdma_resolve_route() memory leak
RDMA/core/sa_query: Remove unused argument
RDMA/cma: Fix incorrect Packet Lifetime calculation
RDMA/cma: Protect RMW with qp_mutex
RDMA/cma: Remove unnecessary INIT->INIT transition
RDMA/hns: Add window selection field of congestion control
RDMA/hfi1: Remove use of kmap()
RDMA/irdma: Remove use of kmap()
RDMA/bnxt_re: Fix uninitialized struct bit field rsvd1
IB/isert: Align target max I/O size to initiator size
RDMA/hns: Fix incorrect vlan enable bit in QPC
MAINTAINERS: Update Broadcom RDMA maintainers
RDMA/irdma: Use the queried port attributes
RDMA/rxe: Fix redundant skb_put_zero
RDMA/rxe: Fix extra copy in prepare_ack_packet
...
projects / kernel.git / log