Linus Torvalds [Sun, 5 Jun 2022 02:00:05 +0000 (19:00 -0700)]
Merge tag 'pull-18-rc1-work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull mount handling updates from Al Viro:
"Cleanups (and one fix) around struct mount handling.
The fix is usermode_driver.c one - once you've done kern_mount(), you
must kern_unmount(); simple mntput() will end up with a leak. Several
failure exits in there messed up that way... In practice you won't hit
those particular failure exits without fault injection, though"
* tag 'pull-18-rc1-work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
move mount-related externs from fs.h to mount.h
blob_to_mnt(): kern_unmount() is needed to undo kern_mount()
m->mnt_root->d_inode->i_sb is a weird way to spell m->mnt_sb...
linux/mount.h: trim includes
uninline may_mount() and don't opencode it in fspick(2)/fsopen(2)
Linus Torvalds [Sun, 5 Jun 2022 01:52:00 +0000 (18:52 -0700)]
Merge tag 'pull-18-rc1-work.fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull file descriptor updates from Al Viro.
- Descriptor handling cleanups
* tag 'pull-18-rc1-work.fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
Unify the primitives for file descriptor closing
fs: remove fget_many and fput_many interface
io_uring_enter(): don't leave f.flags uninitialized
Linus Torvalds [Sun, 5 Jun 2022 00:42:33 +0000 (17:42 -0700)]
Merge tag '5.19-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs client fixes from Steve French:
"Nine cifs/smb3 client fixes.
Includes DFS fixes, some cleanup of leagcy SMB1 code, duplicated
message cleanup and a double free and deadlock fix"
* tag '5.19-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix uninitialized pointer in error case in dfs_cache_get_tgt_share
cifs: skip trailing separators of prefix paths
cifs: update internal module number
cifs: version operations for smb20 unneeded when legacy support disabled
cifs: do not build smb1ops if legacy support is disabled
cifs: fix potential deadlock in direct reclaim
cifs: when extending a file with falloc we should make files not-sparse
cifs: remove repeated debug message on cifs_put_smb_ses()
cifs: fix potential double free during failed mount
Linus Torvalds [Sat, 4 Jun 2022 21:04:27 +0000 (14:04 -0700)]
Merge tag 'bitmap-for-5.19-rc1' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov:
- bitmap: optimize bitmap_weight() usage, from me
- lib/bitmap.c make bitmap_print_bitmask_to_buf parseable, from Mauro
Carvalho Chehab
- include/linux/find: Fix documentation, from Anna-Maria Behnsen
- bitmap: fix conversion from/to fix-sized arrays, from me
- bitmap: Fix return values to be unsigned, from Kees Cook
It has been in linux-next for at least a week with no problems.
* tag 'bitmap-for-5.19-rc1' of https://github.com/norov/linux: (31 commits)
nodemask: Fix return values to be unsigned
bitmap: Fix return values to be unsigned
KVM: x86: hyper-v: replace bitmap_weight() with hweight64()
KVM: x86: hyper-v: fix type of valid_bank_mask
ia64: cleanup remove_siblinginfo()
drm/amd/pm: use bitmap_{from,to}_arr32 where appropriate
KVM: s390: replace bitmap_copy with bitmap_{from,to}_arr64 where appropriate
lib/bitmap: add test for bitmap_{from,to}_arr64
lib: add bitmap_{from,to}_arr64
lib/bitmap: extend comment for bitmap_(from,to)_arr32()
include/linux/find: Fix documentation
lib/bitmap.c make bitmap_print_bitmask_to_buf parseable
MAINTAINERS: add cpumask and nodemask files to BITMAP_API
arch/x86: replace nodes_weight with nodes_empty where appropriate
mm/vmstat: replace cpumask_weight with cpumask_empty where appropriate
clocksource: replace cpumask_weight with cpumask_empty in clocksource.c
genirq/affinity: replace cpumask_weight with cpumask_empty where appropriate
irq: mips: replace cpumask_weight with cpumask_empty where appropriate
drm/i915/pmu: replace cpumask_weight with cpumask_empty where appropriate
arch/x86: replace cpumask_weight with cpumask_empty where appropriate
...
Linus Torvalds [Sat, 4 Jun 2022 20:50:23 +0000 (13:50 -0700)]
Merge tag 'for-5.19/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull more parisc architecture updates from Helge Deller:
"A fix to prevent crash at bootup if CONFIG_SCHED_MC is enabled, and
add auto-detection of primary graphics card for framebuffer driver"
* tag 'for-5.19/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc/stifb: Keep track of hardware path of graphics card
parisc/stifb: Implement fb_is_primary_device()
parisc: fix a crash with multicore scheduler
Linus Torvalds [Sat, 4 Jun 2022 20:42:53 +0000 (13:42 -0700)]
Merge tag 'for-linus-5.19-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull more xen updates from Juergen Gross:
"Two cleanup patches for Xen related code and (more important) an
update of MAINTAINERS for Xen, as Boris Ostrovsky decided to step
down"
* tag 'for-linus-5.19-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: replace xen_remap() with memremap()
MAINTAINERS: Update Xen maintainership
xen: switch gnttab_end_foreign_access() to take a struct page pointer
Linus Torvalds [Sat, 4 Jun 2022 20:33:12 +0000 (13:33 -0700)]
Merge tag 'perf-tools-for-v5.19-2022-06-04' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull more perf tools updates from Arnaldo Carvalho de Melo:
- Synthesize task events for pre-existing threads when using 'perf lock
--threads', as we need to show task names.
- Fix unwinding with ld.lld (>= version 10.0) linked objects, where
.eh_frame_hdr and .text are in different PT_LOAD program headers,
which makes perf record --call-graph dwarf fail with such obkects.
- Check if 'perf record' hangs in the ARM SPE (Statistical Profiling
Extensions) 'perf test' entry when recording a workload with forks.
- Trace physical address for Arm SPE events, needed for 'perf c2c' to
locate the memory node for samples.
- Fix sorting in percent_rmt_hitm_cmp() in 'perf c2c'.
- Further support for Intel hybrid systems in the evlist and 'perf
record' code.
- Update IBM s/390 vendor event JSON tables.
- Add metrics (JSON) for Intel Sapphirerapids.
- Update metrics for Intel Alderlake.
- Correct typo of sysf 'event_source' directory in the documentation.
* tag 'perf-tools-for-v5.19-2022-06-04' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf vendor events intel: Update metrics for Alderlake
perf vendor events intel: Add metrics for Sapphirerapids
perf c2c: Fix sorting in percent_rmt_hitm_cmp()
perf mem: Trace physical address for Arm SPE events
perf list: Update event description for IBM zEC12/zBC12 to latest level
perf list: Update event description for IBM z196/z114 to latest level
perf list: Update event description for IBM z15 to latest level
perf list: Update event description for IBM z14 to latest level
perf list: Update event description for IBM z13 to latest level
perf list: Update event description for IBM z10 to latest level
perf list: Add IBM z16 event description for s390
perf record: Support sample-read topdown metric group for hybrid platforms
perf lock: Change to synthesize task events
perf unwind: Fix segbase for ld.lld linked objects
perf test arm-spe: Check if perf-record hangs when recording workload with forks
perf docs: Correct typo of event_sources
perf evlist: Extend arch_evsel__must_be_in_group to support hybrid systems
Helge Deller [Thu, 2 Jun 2022 11:50:44 +0000 (13:50 +0200)]
parisc/stifb: Implement fb_is_primary_device()
Implement fb_is_primary_device() function, so that fbcon detects if this
framebuffer belongs to the default graphics card which was used to start
the system.
Linus Torvalds [Sat, 4 Jun 2022 03:01:25 +0000 (20:01 -0700)]
Merge tag 'gpio-fixes-for-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- use the correct register for regcache sync in gpio-pca953x
- remove unused and potentially harmful code from gpio-adp5588
- MAINTAINERS update
* tag 'gpio-fixes-for-v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: adp5588: Remove support for platform setup and teardown callbacks
gpio: pca953x: use the correct register address to do regcache sync
MAINTAINERS: Update Intel GPIO (PMIC and PCH) to Supported
MAINTAINERS: Update GPIO ACPI library to Supported
Linus Torvalds [Sat, 4 Jun 2022 02:57:25 +0000 (19:57 -0700)]
Merge tag 'regulator-fix-v5.19-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"One fix that came in during the merge window, fixing an error in the
examples in the DT binding documentation for mt6315"
* tag 'regulator-fix-v5.19-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: mt6315-regulator: fix invalid allowed mode
* tag 'ntfs3_for_5.19' of https://github.com/Paragon-Software-Group/linux-ntfs3:
fs/ntfs3: provide block_invalidate_folio to fix memory leak
fs/ntfs3: Fix invalid free in log_replay
fs/ntfs3: Update valid size if -EIOCBQUEUED
fs/ntfs3: Check new size for limits
fs/ntfs3: Fix fiemap + fix shrink file size (to remove preallocated space)
fs/ntfs3: In function ntfs_set_acl_ex do not change inode->i_mode if called from function ntfs_init_acl
fs/ntfs3: Optimize locking in ntfs_save_wsl_perm
fs/ntfs3: Update i_ctime when xattr is added
fs/ntfs3: Restore ntfs_xattr_get_acl and ntfs_xattr_set_acl functions
fs/ntfs3: Keep preallocated only if option prealloc enabled
fs/ntfs3: Fix some memory leaks in an error handling path of 'log_replay()'
Linus Torvalds [Fri, 3 Jun 2022 23:13:25 +0000 (16:13 -0700)]
Merge tag 'ptrace_stop-cleanup-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull ptrace_stop cleanups from Eric Biederman:
"While looking at the ptrace problems with PREEMPT_RT and the problems
Peter Zijlstra was encountering with ptrace in his freezer rewrite I
identified some cleanups to ptrace_stop that make sense on their own
and move make resolving the other problems much simpler.
The biggest issue is the habit of the ptrace code to change
task->__state from the tracer to suppress TASK_WAKEKILL from waking up
the tracee. No other code in the kernel does that and it is straight
forward to update signal_wake_up and friends to make that unnecessary.
Peter's task freezer sets frozen tasks to a new state TASK_FROZEN and
then it stores them by calling "wake_up_state(t, TASK_FROZEN)" relying
on the fact that all stopped states except the special stop states can
tolerate spurious wake up and recover their state.
The state of stopped and traced tasked is changed to be stored in
task->jobctl as well as in task->__state. This makes it possible for
the freezer to recover tasks in these special states, as well as
serving as a general cleanup. With a little more work in that
direction I believe TASK_STOPPED can learn to tolerate spurious wake
ups and become an ordinary stop state.
The TASK_TRACED state has to remain a special state as the registers
for a process are only reliably available when the process is stopped
in the scheduler. Fundamentally ptrace needs acess to the saved
register values of a task.
There are bunch of semi-random ptrace related cleanups that were found
while looking at these issues.
One cleanup that deserves to be called out is from commit 94196e3db8d4
("ptrace: Admit ptrace_stop can generate spuriuos SIGTRAPs"). This
makes a change that is technically user space visible, in the handling
of what happens to a tracee when a tracer dies unexpectedly. According
to our testing and our understanding of userspace nothing cares that
spurious SIGTRAPs can be generated in that case"
* tag 'ptrace_stop-cleanup-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state
ptrace: Always take siglock in ptrace_resume
ptrace: Don't change __state
ptrace: Admit ptrace_stop can generate spuriuos SIGTRAPs
ptrace: Document that wait_task_inactive can't fail
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
signal: Use lockdep_assert_held instead of assert_spin_locked
ptrace: Remove arch_ptrace_attach
ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP
signal: Replace __group_send_sig_info with send_signal_locked
signal: Rename send_signal send_signal_locked
Linus Torvalds [Fri, 3 Jun 2022 23:03:05 +0000 (16:03 -0700)]
Merge tag 'kthread-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull kthread updates from Eric Biederman:
"This updates init and user mode helper tasks to be ordinary user mode
tasks.
Commit aa52bf4ac30d ("kthread: Ensure struct kthread is present for
all kthreads") caused init and the user mode helper threads that call
kernel_execve to have struct kthread allocated for them. This struct
kthread going away during execve in turned made a use after free of
struct kthread possible.
Here, commit ce0508581165 ("kthread: Don't allocate kthread_struct for
init and umh") is enough to fix the use after free and is simple
enough to be backportable.
The rest of the changes pass struct kernel_clone_args to clean things
up and cause the code to make sense.
In making init and the user mode helpers tasks purely user mode tasks
I ran into two complications. The function task_tick_numa was
detecting tasks without an mm by testing for the presence of
PF_KTHREAD. The initramfs code in populate_initrd_image was using
flush_delayed_fput to ensuere the closing of all it's file descriptors
was complete, and flush_delayed_fput does not work in a userspace
thread.
I have looked and looked and more complications and in my code review
I have not found any, and neither has anyone else with the code
sitting in linux-next"
* tag 'kthread-cleanups-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
sched: Update task_tick_numa to ignore tasks without an mm
fork: Stop allowing kthreads to call execve
fork: Explicitly set PF_KTHREAD
init: Deal with the init process being a user mode process
fork: Generalize PF_IO_WORKER handling
fork: Explicity test for idle tasks in copy_thread
fork: Pass struct kernel_clone_args into copy_thread
kthread: Don't allocate kthread_struct for init and umh
Linus Torvalds [Fri, 3 Jun 2022 22:54:57 +0000 (15:54 -0700)]
Merge tag 'per-namespace-ipc-sysctls-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull ipc sysctl namespace updates from Eric Biederman:
"This updates the ipc sysctls so that they are fundamentally per ipc
namespace. Previously these sysctls depended upon a hack to simulate
being per ipc namespace by looking up the ipc namespace in read or
write. With this set of changes the ipc sysctls are registered per ipc
namespace and open looks up the ipc namespace.
Not only does this series of changes ensure the traditional binding at
open time happens, but it sets a foundation for being able to relax
the permission checks to allow a user namspace root to change the ipc
sysctls for an ipc namespace that the user namespace root requires. To
do this requires the ipc namespace to be known at open time"
* tag 'per-namespace-ipc-sysctls-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
ipc: Remove extra braces
ipc: Check permissions for checkpoint_restart sysctls at open time
ipc: Remove extra1 field abuse to pass ipc namespace
ipc: Use the same namespace to modify and validate
ipc: Store ipc sysctls in the ipc namespace
ipc: Store mqueue sysctls in the ipc namespace
Linus Torvalds [Fri, 3 Jun 2022 22:46:03 +0000 (15:46 -0700)]
firmware_loader: enable XZ by default if compressed support is enabled
Commit aad1da054959 ("firmware: Add the support for ZSTD-compressed
firmware files") added support for ZSTD compression, but in the process
also made the previously default XZ compression a config option.
That means that anybody who upgrades their kernel and does a
make oldconfig
to update their configuration, will end up without the XZ compression
that the configuration used to have.
Add the 'default y' to make sure this doesn't happen.
The whole compression question should probably be improved upon, since
it is now possible to "enable" compression in the kernel config but not
enable any actual compression algorithm, which makes it all very
useless. It makes no sense to ask Kconfig questions that enable
situations that are nonsensical like that.
This at least fixes the immediate problem of a kernel update resulting
in a nonbootable machine because of a missed option.
Fixes: aad1da054959 ("firmware: Add the support for ZSTD-compressed firmware files") Cc: Takashi Iwai <tiwai@suse.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 3 Jun 2022 21:42:24 +0000 (14:42 -0700)]
Merge tag 'for-linus-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull JFFS2, UBI and UBIFS updates from Richard Weinberger:
"JFFS2:
- Fixes for a memory leak
UBI:
- Fixes for fastmap (UAF, high CPU usage)
UBIFS:
- Minor cleanups"
* tag 'for-linus-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
ubi: ubi_create_volume: Fix use-after-free when volume creation failed
ubi: fastmap: Check wl_pool for free peb before wear leveling
ubi: fastmap: Fix high cpu usage of ubi_bgt by making sure wl_pool not empty
ubifs: Use NULL instead of using plain integer as pointer
ubifs: Simplify the return expression of run_gc()
jffs2: fix memory leak in jffs2_do_fill_super
jffs2: Use kzalloc instead of kmalloc/memset
Linus Torvalds [Fri, 3 Jun 2022 21:35:14 +0000 (14:35 -0700)]
Merge tag 'for-linus-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:
- Various cleanups and fixes: xterm, serial line, time travel
- Set ARCH_HAS_GCOV_PROFILE_ALL
* tag 'for-linus-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Fix out-of-bounds read in LDT setup
um: chan_user: Fix winch_tramp() return value
um: virtio_uml: Fix broken device handling in time-travel
um: line: Use separate IRQs per line
um: Enable ARCH_HAS_GCOV_PROFILE_ALL
um: Use asm-generic/dma-mapping.h
um: daemon: Make default socket configurable
um: xterm: Make default terminal emulator configurable
Linus Torvalds [Fri, 3 Jun 2022 21:24:44 +0000 (14:24 -0700)]
Merge tag 'devicetree-fixes-for-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fixes for unevaluatedProperties warnings.
These were missed to due to a bug in dtschema which is now fixed. The
changes involve either adding missing properties or removing spurious
properties from examples.
- Update several Qualcomm binding maintainer email addresses
- Fix typo in imx8mp-media-blk-ctrl example
- Fix fixed string pattern in qcom,smd
- Correct the order of 'reg' entries in Xilinx PCI binding
* tag 'devicetree-fixes-for-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: mtd: spi-nand: Add spi-peripheral-props.yaml reference
dt-bindings: memory-controllers: ingenic: Split out child node properties
dt-bindings: net/dsa: Add spi-peripheral-props.yaml references
dt-bindings: PCI: apple: Add missing 'power-domains' property
dt-bindings: Update Sibi Sankar's email address
dt-bindings: clock: Update my email address
dt-bindings: PCI: xilinx-cpm: Fix reg property order
dt-bindings: net: Fix unevaluatedProperties warnings in examples
dt-bindings: PCI: socionext,uniphier-pcie: Add missing child interrupt controller
dt-bindings: usb: snps,dwc3: Add missing 'dma-coherent' property
dt-bindings: soc: imx8mp-media-blk-ctrl: Fix DT example
dt-bindings: soc: qcom,smd: do not use pattern for simple rpm-requests string
Linus Torvalds [Fri, 3 Jun 2022 21:20:28 +0000 (14:20 -0700)]
Merge tag 'arm-multiplatform-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull yet more ARM multiplatform updates from Arnd Bergmann:
"This is the third and final bit of the multiplatform conversion for
ARMv5, finishing off OMAP1. One patch enables the common-clk
interface, and the other ones does the Kconfig change.
These were waiting on a few dependencies to trickle in for common-clk,
and the last one of those was in the USB tree"
* tag 'arm-multiplatform-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: omap1: enable multiplatform
ARM: OMAP1: clock: Convert to CCF
Linus Torvalds [Fri, 3 Jun 2022 21:09:21 +0000 (14:09 -0700)]
Merge tag 'loongarch-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull initial Loongarch architecture code from Arnd Bergmann:
"This is the majority of the loongarch architecture code, including the
final system call interface and all core functionality.
It still misses three sets of peripheral but vital patches to add
support for other subsystems, which have yet to pass review:
- The drivers/firmware/efi stub for booting from a standard UEFI
firmware implementation. Both the original custom boot interface
and a draft implementation of the EFI stub did not make it, so it
is currently impossible to boot the kernel, until the loongarch
specific portions get accepted into the UEFI subsystem
- The drivers/irqchip/irq-loongson-*.c drivers are shared with the
the MIPS port, but currently lack support for ACPI based booting,
which will get merged through the irqchip subsystem.
- Similarly, the drivers/pci/controller/pci-loongson.c needs to be
modified for ACPI support, which will be merged through the PCI
subsystem.
While the port cannot actually be used before all the above are
merged, having it in 5.19 helps to establish the user space ABI for
the libc ports to build on, and to help any treewide changes in the
mainline kernel get applied here as well.
A gcc-12 based tool chains for build testing is now included in
Original description from Huacai Chen:
"LoongArch is a new RISC ISA, which is a bit like MIPS or RISC-V.
LoongArch includes a reduced 32-bit version (LA32R), a standard 32-bit
version (LA32S) and a 64-bit version (LA64). LoongArch use ACPI as its
boot protocol LoongArch-specific interrupt controllers (similar to APIC)
are already added in the next revision of ACPI Specification (current
revision is 6.4).
This patchset is adding basic LoongArch support in mainline kernel, we
can see a complete snapshot here:
Link: https://lore.kernel.org/lkml/20220603072053.35005-1-chenhuacai@loongson.cn/
* tag 'loongarch-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (24 commits)
MAINTAINERS: Add maintainer information for LoongArch
LoongArch: Add Loongson-3 default config file
LoongArch: Add Non-Uniform Memory Access (NUMA) support
LoongArch: Add multi-processor (SMP) support
LoongArch: Add VDSO and VSYSCALL support
LoongArch: Add some library functions
LoongArch: Add misc common routines
LoongArch: Add ELF and module support
LoongArch: Add signal handling support
LoongArch: Add system call support
LoongArch: Add memory management
LoongArch: Add process management
LoongArch: Add exception/interrupt handling
LoongArch: Add boot and setup routines
LoongArch: Add other common headers
LoongArch: Add atomic/locking headers
LoongArch: Add CPU definition headers
LoongArch: Add build infrastructure
LoongArch: Add writecombine support for drm
LoongArch: Add ELF-related definitions
...
- Skip SVE kselftest if not sufficient vector lengths supported"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
kselftest/arm64: signal: Skip SVE signal test if not enough VLs supported
arm64: Initialize jump labels before setup_machine_fdt()
arm64: hibernate: Fix syntax errors in comments
arm64: Remove the __user annotation for the restore_za_context() argument
ftrace/fgraph: fix increased missing-prototypes warnings
Linus Torvalds [Fri, 3 Jun 2022 21:01:43 +0000 (14:01 -0700)]
Merge tag 'riscv-for-linus-5.19-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
"This is mostly some DT updates, but also a handful of cleanups and
some fixes. The most user-visible of those are:
- A device tree for the Sundance Polarberry, along with a handful of
fixes and clenups to the PolarFire SOC device trees and bindings.
- The memfd_secret syscall number is now visible to userspace,
- Some improvements to the vm layout dump, which really should have
followed shortly after the sv48 patches but I missed"
* tag 'riscv-for-linus-5.19-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Move alternative length validation into subsection
riscv: mm: init: make pt_ops_set_[early|late|fixmap] static
riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild
RISC-V: Mark IORESOURCE_EXCLUSIVE for reserved mem instead of IORESOURCE_BUSY
riscv: Wire up memfd_secret in UAPI header
riscv: Fix irq_work when SMP is disabled
riscv: Improve virtual kernel memory layout dump
riscv: Initialize thread pointer before calling C functions
Documentation: riscv: Add sv48 description to VM layout
RISC-V: Only default to spinwait on SBI-0.1 and M-mode
riscv: dts: icicle: sort nodes alphabetically
riscv: microchip: icicle: readability fixes
riscv: dts: microchip: add the sundance polarberry
dt-bindings: riscv: microchip: add polarberry compatible string
dt-bindings: vendor-prefixes: add Sundance DSP
riscv: dts: microchip: make the fabric dtsi board specific
dt-bindings: riscv: microchip: document icicle reference design
riscv: dts: microchip: remove soc vendor from filenames
riscv: dts: microchip: move sysctrlr out of soc bus
riscv: dts: microchip: remove icicle memory clocks
Linus Torvalds [Fri, 3 Jun 2022 20:57:50 +0000 (13:57 -0700)]
Merge tag 's390-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens:
"Just a couple of small improvements, bug fixes and cleanups:
- Add Eric Farman as maintainer for s390 virtio drivers.
- Improve machine check handling, and avoid incorrectly injecting a
machine check into a kvm guest.
- Add cond_resched() call to gmap page table walker in order to avoid
possible huge latencies. Also use non-quiesing sske instruction to
speed up storage key handling.
- Add __GFP_NORETRY to KEXEC_CONTROL_MEMORY_GFP so s390 behaves
similar like common code.
- Get sie control block address from correct stack slot in perf event
code. This fixes potential random memory accesses.
- Change uaccess code so that the exception handler sets the result
of get_user() and __get_kernel_nofault() to zero in case of a
fault. Until now this was done via input parameters for inline
assemblies. Doing it via fault handling is what most or even all
other architectures are doing.
- Couple of other small cleanups and fixes"
* tag 's390-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/stack: add union to reflect kvm stack slot usages
s390/stack: merge empty stack frame slots
s390/uaccess: whitespace cleanup
s390/uaccess: use __noreturn instead of __attribute__((noreturn))
s390/uaccess: use exception handler to zero result on get_user() failure
s390/uaccess: use symbolic names for inline assembler operands
s390/mcck: isolate SIE instruction when setting CIF_MCCK_GUEST flag
s390/mm: use non-quiescing sske for KVM switch to keyed guest
s390/gmap: voluntarily schedule during key setting
MAINTAINERS: Update s390 virtio-ccw
s390/kexec: add __GFP_NORETRY to KEXEC_CONTROL_MEMORY_GFP
s390/Kconfig.debug: fix indentation
s390/Kconfig: fix indentation
s390/perf: obtain sie_block from the right address
s390: generate register offsets into pt_regs automatically
s390: simplify early program check handler
s390/crypto: fix scatterwalk_unmap() callers in AES-GCM
Linus Torvalds [Fri, 3 Jun 2022 20:39:30 +0000 (13:39 -0700)]
Merge tag 'efi-next-for-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull more EFI updates from Ard Biesheuvel:
"Follow-up tweaks for EFI changes - they mostly address issues
introduced this merge window, except for Heinrich's patch:
- fix new DXE service invocations for mixed mode
- use correct Kconfig symbol when setting PE header flag
- clean up the drivers/firmware/efi Kconfig dependencies so that
features that depend on CONFIG_EFI are hidden from the UI when the
symbol is not enabled.
Also included is a RISC-V bugfix from Heinrich to avoid read-write
mappings of read-only firmware regions in the EFI page tables"
* tag 'efi-next-for-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: clean up Kconfig dependencies on CONFIG_EFI
efi/x86: libstub: Make DXE calls mixed mode safe
efi: x86: Fix config name for setting the NX-compatibility flag in the PE header
riscv: read-only pages should not be writable
Leo Yan [Mon, 30 May 2022 08:42:53 +0000 (16:42 +0800)]
perf c2c: Fix sorting in percent_rmt_hitm_cmp()
The function percent_rmt_hitm_cmp() wrongly uses local HITMs for
sorting remote HITMs.
Since this function is to sort cache lines for remote HITMs, this patch
changes to use 'rmt_hitm' field for correct sorting.
Fixes: 0fa35fad13c5559f ("perf c2c report: Add hitm/store percent related sort keys") Signed-off-by: Leo Yan <leo.yan@linaro.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joe Mario <jmario@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220530084253.750190-1-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Leo Yan [Mon, 30 May 2022 08:36:45 +0000 (16:36 +0800)]
perf mem: Trace physical address for Arm SPE events
Currently, Arm SPE events don't trace physical address, therefore, the
field 'phys_addr' is always zero in synthesized memory samples. This
leads to perf c2c tool cannot locate the memory node for samples.
This patch enables configuration 'pa_enable' for Arm SPE events, so the
physical address packet can be traced, finally this can allow perf c2c
tool to locate properly for memory node.
Signed-off-by: Leo Yan <leo.yan@linaro.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20220530083645.253432-1-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Thomas Richter [Tue, 31 May 2022 09:27:06 +0000 (11:27 +0200)]
perf list: Update event description for IBM zEC12/zBC12 to latest level
Update IBM zEC12/zBC12 event counter description to the latest level
as described in the documents
1. SA23-2260-07:
"The Load-Program-Parameter and the CPU-Measurement Facilities."
released on May, 2022
for the following counter sets:
* Basic counter set
* Problem counter set
* Crypto counter set
2. SA23-2261-07:
"The CPU-Measurement Facility Extended Counters Definition
for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15 and z16"
released on April 29, 2022
for the following counter sets:
* Extended counter set
* MT-Diagnostic counter set
Thomas Richter [Tue, 31 May 2022 09:27:05 +0000 (11:27 +0200)]
perf list: Update event description for IBM z196/z114 to latest level
Update IBM z196/z114 event counter description to the latest level
as described in the documents
1. SA23-2260-07:
"The Load-Program-Parameter and the CPU-Measurement Facilities."
released on May, 2022
for the following counter sets:
* Basic counter set
* Problem counter set
* Crypto counter set
2. SA23-2261-07:
"The CPU-Measurement Facility Extended Counters Definition
for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15 and z16"
released on April 29, 2022
for the following counter sets:
* Extended counter set
* MT-Diagnostic counter set
Thomas Richter [Tue, 31 May 2022 09:27:04 +0000 (11:27 +0200)]
perf list: Update event description for IBM z15 to latest level
Update IBM z15 event counter description to the latest level
as described in the documents
1. SA23-2260-07:
"The Load-Program-Parameter and the CPU-Measurement Facilities."
released on May, 2022
for the following counter sets:
* Basic counter set
* Problem counter set
* Crypto counter set
2. SA23-2261-07:
"The CPU-Measurement Facility Extended Counters Definition
for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15 and z16"
released on April 29, 2022
for the following counter sets:
* Extended counter set
* MT-Diagnostic counter set
Thomas Richter [Tue, 31 May 2022 09:27:03 +0000 (11:27 +0200)]
perf list: Update event description for IBM z14 to latest level
Update IBM z14 event counter description to the latest level
as described in the documents
1. SA23-2260-07:
"The Load-Program-Parameter and the CPU-Measurement Facilities."
released on May, 2022
for the following counter sets:
* Basic counter set
* Problem counter set
* Crypto counter set
2. SA23-2261-07:
"The CPU-Measurement Facility Extended Counters Definition
for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15 and z16"
released on April 29, 2022
for the following counter sets:
* Extended counter set
* MT-Diagnostic counter set
Thomas Richter [Tue, 31 May 2022 09:27:02 +0000 (11:27 +0200)]
perf list: Update event description for IBM z13 to latest level
Update IBM z13 event counter description to the latest level
as described in the documents
1. SA23-2260-07:
"The Load-Program-Parameter and the CPU-Measurement Facilities."
released on May, 2022
for the following counter sets:
* Basic counter set
* Problem counter set
* Crypto counter set
2. SA23-2261-07:
"The CPU-Measurement Facility Extended Counters Definition
for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15 and z16"
released on April 29, 2022
for the following counter sets:
* Extended counter set
* MT-Diagnostic counter set
Thomas Richter [Tue, 31 May 2022 09:27:01 +0000 (11:27 +0200)]
perf list: Update event description for IBM z10 to latest level
Update IBM z10 event counter description to the latest level
as described in the documents
1. SA23-2260-07:
"The Load-Program-Parameter and the CPU-Measurement Facilities."
released on May, 2022
for the following counter sets:
* Basic counter set
* Problem counter set
* Crypto counter set
2. SA23-2261-07:
"The CPU-Measurement Facility Extended Counters Definition
for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15 and z16"
released on April 29, 2022
for the following counter sets:
* Extended counter set
* MT-Diagnostic counter set
Thomas Richter [Tue, 31 May 2022 09:27:00 +0000 (11:27 +0200)]
perf list: Add IBM z16 event description for s390
Update IBM z16 counter description using document SA23-2260-07:
"The Load-Program-Parameter and the CPU-Measurement Facilities"
released in May, 2022, to include counter definitions for IBM z16
counter sets:
* Basic counter set
* Problem/user counter set
* Crypto counter set
Use document SA23-2261-07:
"The CPU-Measurement Facility Extended Counters Definition
for z10, z196/z114, zEC12/zBC12, z13/z13s, z14, z15 and z16"
released on April 29, 2022 to include counter definitions for IBM z16
* Extended counter set
* MT-Diagnostic counter set
Zhengjun Xing [Thu, 2 Jun 2022 15:36:03 +0000 (23:36 +0800)]
perf record: Support sample-read topdown metric group for hybrid platforms
With the hardware TopDown metrics feature, the sample-read feature should
be supported for a TopDown group, e.g., sample a non-topdown event and read
a Topdown metric group. But the current perf record code errors are out.
For a TopDown metric group,the slots event must be the leader of the group,
but the leader slots event doesn't support sampling. To support sample-read
the TopDown metric group, uses the 2nd event of the group as the "leader"
for the purposes of sampling.
Only the platform with the TopDown metric feature supports sample-read the
topdown group. In commit 3a3eec46c7f8 ("perf record: Support sample-read
topdown metric group"), it adds arch_topdown_sample_read() to indicate
whether the TopDown group supports sample-read, it should only work on the
non-hybrid systems, this patch extends the support for hybrid platforms.
Before:
# ./perf record -e "{cpu_core/slots/,cpu_core/cycles/,cpu_core/topdown-retiring/}:S" -a sleep 1
Error:
The sys_perf_event_open() syscall returned with 22 (Invalid argument) for event (cpu_core/topdown-retiring/).
/bin/dmesg | grep -i perf may provide additional information.
After:
# ./perf record -e "{cpu_core/slots/,cpu_core/cycles/,cpu_core/topdown-retiring/}:S" -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.238 MB perf.data (369 samples) ]
Fixes: 3a3eec46c7f88904 ("perf record: Support sample-read topdown metric group") Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20220602153603.1884710-1-zhengjun.xing@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fangrui Song [Fri, 27 May 2022 18:20:39 +0000 (11:20 -0700)]
perf unwind: Fix segbase for ld.lld linked objects
segbase is the address of .eh_frame_hdr and table_data is segbase plus
the header size. find_proc_info computes segbase as `map->start +
segbase - map->pgoff` which is wrong when
* .eh_frame_hdr and .text are in different PT_LOAD program headers
* and their p_vaddr difference does not equal their p_offset difference
Since 10.0, ld.lld's default --rosegment -z noseparate-code layout has
such R and RX PT_LOAD program headers.
ld.lld (default) => perf report fails to unwind `perf record
--call-graph dwarf` recorded data
ld.lld --no-rosegment => ok (trivial, no R PT_LOAD)
ld.lld -z separate-code => ok but by luck: there are two PT_LOAD but
their p_vaddr difference equals p_offset difference
ld.bfd -z noseparate-code => ok (trivial, no R PT_LOAD)
ld.bfd -z separate-code (default for Linux/x86) => ok but by luck:
there are two PT_LOAD but their p_vaddr difference equals p_offset
difference
To fix the issue, compute segbase as dso's base address plus
PT_GNU_EH_FRAME's p_vaddr. The base address is computed by iterating
over all dso-associated maps and then subtract the first PT_LOAD p_vaddr
(the minimum guaranteed by generic ABI) from the minimum address.
In libunwind, find_proc_info transitively called by unw_step is cached,
so the iteration overhead is acceptable.
German Gomez [Mon, 28 Feb 2022 16:56:54 +0000 (16:56 +0000)]
perf test arm-spe: Check if perf-record hangs when recording workload with forks
Add shell test to check if perf-record hangs when recording an arm_spe
event with forks.
The test FAILS if the Kernel is not patched with Commit 39ae75fc1f ("perf:
Always wake the parent event").
Unpatched Kernel:
$ perf test -v 90
90: Check Arm SPE doesn't hang when there are forks
--- start ---
test child forked, pid 14232
Recording workload with fork
Log lines = 90 /tmp/__perf_test.stderr.0Nu0U
Log lines after 1 second = 90 /tmp/__perf_test.stderr.0Nu0U
SPE hang test: FAIL
test child finished with -1
---- end ----
Check Arm SPE trace data in workload with forks: FAILED!
Patched Kernel:
$ perf test -v 90
90: Check Arm SPE doesn't hang when there are forks
--- start ---
test child forked, pid 2930
Compiling test program...
Recording workload...
Log lines = 478 /tmp/__perf_test.log.026AI
Log lines after 1 second = 557 /tmp/__perf_test.log.026AI
SPE hang test: PASS
Cleaning up files...
test child finished with 0
---- end ----
Check Arm SPE trace data in workload with forks: Ok
Reviewed-by: James Clark <james.clark@arm.com> Reviewed-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: German Gomez <german.gomez@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20220228165655.3920-1-german.gomez@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Paulo Alcantara [Fri, 3 Jun 2022 19:13:02 +0000 (16:13 -0300)]
cifs: skip trailing separators of prefix paths
During DFS failover, prefix paths may change, so make sure to not
leave trailing separators when parsing thew in
dfs_cache_get_tgt_share(). The separators of prefix paths are already
handled by build_path_from_dentry_optional_prefix().
mount.cifs //dom/dfs/link
tree connect to \\srv1\share; prefix_path=dir1
disconnect srv1; failover to srv2
tree connect to \\srv2\share; prefix_path=dir1\
mv foo bar
mount.cifs //dom/dfs/link
tree connect to \\srv1\share; prefix_path=dir1
disconnect srv1; failover to srv2
tree connect to \\srv2\share; prefix_path=dir1
mv foo bar
Zhengjun Xing [Wed, 1 Jun 2022 15:25:44 +0000 (23:25 +0800)]
perf evlist: Extend arch_evsel__must_be_in_group to support hybrid systems
For the hybrid system, the "slots" event changes to "cpu_core/slots/", need
extend API arch_evsel__must_be_in_group() to support hybrid systems.
In the origin code, for hybrid system event "cpu_core/slots/", the output
of the API arch_evsel__must_be_in_group() is "false" (in fact,it should be
"true"). Currently only one API evsel__remove_from_group() calls it. In
evsel__remove_from_group(), it adds the second condition to check, so the
output of evsel__remove_from_group() still is correct. That's the reason
why there isn't an instant error. I'd like to fix the issue found in API
arch_evsel__must_be_in_group() in case someone else using the function in
the other place.
Saravana Kannan [Fri, 3 Jun 2022 11:31:38 +0000 (13:31 +0200)]
driver core: Set default deferred_probe_timeout back to 0.
Since we had to effectively reverted
commit 5ffda8808c31 ("driver core: Ensure wait_for_device_probe() waits
until the deferred_probe_timeout fires") in an earlier patch, a non-zero
deferred_probe_timeout will break NFS rootfs mounting [1] again. So, set
the default back to zero until we can fix that.
Mounting NFS rootfs was timing out when deferred_probe_timeout was
non-zero [1]. This was because ip_auto_config() initcall times out
waiting for the network interfaces to show up when
deferred_probe_timeout was non-zero. While ip_auto_config() calls
wait_for_device_probe() to make sure any currently running deferred
probe work or asynchronous probe finishes, that wasn't sufficient to
account for devices being deferred until deferred_probe_timeout.
Commit 5ffda8808c31 ("driver core: Ensure wait_for_device_probe() waits
until the deferred_probe_timeout fires") tried to fix that by making
sure wait_for_device_probe() waits for deferred_probe_timeout to expire
before returning.
However, if wait_for_device_probe() is called from the kernel_init()
context:
- Before deferred_probe_initcall() [2], it causes the boot process to
hang due to a deadlock.
- After deferred_probe_initcall() [3], it blocks kernel_init() from
continuing till deferred_probe_timeout expires and beats the point of
deferred_probe_timeout that's trying to wait for userspace to load
modules.
Neither of this is good. So revert the changes to
wait_for_device_probe().
Arnd Bergmann [Mon, 30 May 2022 12:46:17 +0000 (14:46 +0200)]
ARM: omap1: enable multiplatform
With all the header files out of the way, and the clock driver
converted to the common framework, nothing stops us from building
OMAP together with the other platforms.
As usual, the decompressor support is a victim here, and is
only available when CONFIG_DEBUG_LL is configured for the
particular board.
Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
OMAP1 still uses its own implementation of standard clock API defined in
include/linux/clk.h. Internals of that implementation are not visible
outside OMAP1 directory. As a consequence, device drivers are not able to
register clocks potentially provided by peripheral devices.
Drop OMAP1 implementation of the clock API and enable common clock
framework. Modify the remaining low level code to be compatible with
clock provider API and register the clocks with CCF.
Move initialisation of clocks to omap1_timer_init() to avoid memory
allocation issues at early setup phase from where omap1_init_early() is
called. Register the clocks after initialization of clock I/O registers,
local clock pointers used by OMAP1 clock ops, and local .rate fields of
clocks with no local implementation of .recalc ops, so CCF structures are
populated with correct data during clock registration. Instead of
enabling some of the registered clocks, flag them for CCF as critical.
Introduce .is_enabled op using code that verifies hardware status of clock
enablement, split out from implementation of .disable_unused op, so the
latter is actually called by CCF for not requested but hardware enabled
clocks. Add .round_rate ops where missing so .set_rate ops are called by
CCF as expected. Since CCF allows parallel execution of .enable/.disable
and .set_rate ops, protect registers shared among those groups of ops from
concurrent access with spinlocks. Drop local debugfs support in favor of
that provided by CCF.
v2: flag tc2_ck as CLK_IS_CRITICAL (Aaro)
v3: rebase on top of soc/omap1-multiplatform-5.18,
- drop no longer needed includes from arch/arm/mach-omap1/io.c
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Linus Torvalds [Fri, 3 Jun 2022 18:48:47 +0000 (11:48 -0700)]
Merge tag 'driver-core-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the set of driver core changes for 5.19-rc1.
Lots of tiny driver core changes and cleanups happened this cycle, but
the two major things are:
- firmware_loader reorganization and additions including the ability
to have XZ compressed firmware images and the ability for userspace
to initiate the firmware load when it needs to, instead of being
always initiated by the kernel. FPGA devices specifically want this
ability to have their firmware changed over the lifetime of the
system boot, and this allows them to work without having to come up
with yet-another-custom-uapi interface for loading firmware for
them.
- physical location support added to sysfs so that devices that know
this information, can tell userspace where they are located in a
common way. Some ACPI devices already support this today, and more
bus types should support this in the future.
Smaller changes include:
- driver_override api cleanups and fixes
- error path cleanups and fixes
- get_abi script fixes
- deferred probe timeout changes.
It's that last change that I'm the most worried about. It has been
reported to cause boot problems for a number of systems, and I have a
tested patch series that resolves this issue. But I didn't get it
merged into my tree before 5.18-final came out, so it has not gotten
any linux-next testing.
I'll send the fixup patches (there are 2) as a follow-on series to this
pull request.
All have been tested in linux-next for weeks, with no reported issues
other than the above-mentioned boot time-outs"
* tag 'driver-core-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits)
driver core: fix deadlock in __device_attach
kernfs: Separate kernfs_pr_cont_buf and rename_lock.
topology: Remove unused cpu_cluster_mask()
driver core: Extend deferred probe timeout on driver registration
MAINTAINERS: add Russ Weight as a firmware loader maintainer
driver: base: fix UAF when driver_attach failed
test_firmware: fix end of loop test in upload_read_show()
driver core: location: Add "back" as a possible output for panel
driver core: location: Free struct acpi_pld_info *pld
driver core: Add "*" wildcard support to driver_async_probe cmdline param
driver core: location: Check for allocations failure
arch_topology: Trace the update thermal pressure
kernfs: Rename kernfs_put_open_node to kernfs_unlink_open_file.
export: fix string handling of namespace in EXPORT_SYMBOL_NS
rpmsg: use local 'dev' variable
rpmsg: Fix calling device_lock() on non-initialized device
firmware_loader: describe 'module' parameter of firmware_upload_register()
firmware_loader: Move definitions from sysfs_upload.h to sysfs.h
firmware_loader: Fix configs for sysfs split
selftests: firmware: Add firmware upload selftests
...
Linus Torvalds [Fri, 3 Jun 2022 18:36:34 +0000 (11:36 -0700)]
Merge tag 'char-misc-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / other smaller driver subsystem updates from Greg KH:
"Here is the large set of char, misc, and other driver subsystem
updates for 5.19-rc1. The merge request for this has been delayed as I
wanted to get lots of linux-next testing due to some late arrivals of
changes for the habannalabs driver.
Highlights of this merge are:
- habanalabs driver updates for new hardware types and fixes and
other updates
- IIO driver tree merge which includes loads of new IIO drivers and
cleanups and additions
- PHY driver tree merge with new drivers and small updates to
existing ones
- interconnect driver tree merge with fixes and updates
- soundwire driver tree merge with some small fixes
- coresight driver tree merge with small fixes and updates
- mhi bus driver tree merge with lots of updates and new device
support
- firmware driver updates
- fpga driver updates
- lkdtm driver updates (with a merge conflict, more on that below)
- extcon driver tree merge with small updates
- lots of other tiny driver updates and fixes and cleanups, full
details in the shortlog.
All of these have been in linux-next for almost 2 weeks with no
reported problems"
* tag 'char-misc-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (387 commits)
habanalabs: use separate structure info for each error collect data
habanalabs: fix missing handle shift during mmap
habanalabs: remove hdev from hl_ctx_get args
habanalabs: do MMU prefetch as deferred work
habanalabs: order memory manager messages
habanalabs: return -EFAULT on copy_to_user error
habanalabs: use NULL for eventfd
habanalabs: update firmware header
habanalabs: add support for notification via eventfd
habanalabs: add topic to memory manager buffer
habanalabs: handle race in driver fini
habanalabs: add device memory scrub ability through debugfs
habanalabs: use unified memory manager for CB flow
habanalabs: unified memory manager new code for CB flow
habanalabs/gaudi: set arbitration timeout to a high value
habanalabs: add put by handle method to memory manager
habanalabs: hide memory manager page shift
habanalabs: Add separate poll interval value for protocol
habanalabs: use get_task_pid() to take PID
habanalabs: add prefetch flag to the MAP operation
...
Linus Torvalds [Fri, 3 Jun 2022 18:17:49 +0000 (11:17 -0700)]
Merge tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
"Here is the "big" set of USB and Thunderbolt driver changes for
5.18-rc1. For the most part it's been a quiet development cycle for
the USB core, but there are the usual "hot spots" of development
activity.
Included in here are:
- Thunderbolt driver updates:
- fixes for devices without displayport adapters
- lane bonding support and improvements
- other minor changes based on device testing
- dwc3 gadget driver changes.
It seems this driver will never be finished given that the IP core
is showing up in zillions of new devices and each implementation
decides to do something different with it...
- uvc gadget driver updates as more devices start to use and rely on
this hardware as well
- usb_maxpacket() api changes to remove an unneeded and unused
parameter.
- usb-serial driver device id updates and small cleanups
- typec cleanups and fixes based on device testing
- device tree updates for usb properties
- lots of other small fixes and driver updates.
All of these have been in linux-next for weeks with no reported
problems"
* tag 'usb-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits)
USB: new quirk for Dell Gen 2 devices
usb: dwc3: core: Add error log when core soft reset failed
usb: dwc3: gadget: Move null pinter check to proper place
usb: hub: Simplify error and success path in port_over_current_notify
usb: cdns3: allocate TX FIFO size according to composite EP number
usb: dwc3: Fix ep0 handling when getting reset while doing control transfer
usb: Probe EHCI, OHCI controllers asynchronously
usb: isp1760: Fix out-of-bounds array access
xhci: Don't defer primary roothub registration if there is only one roothub
USB: serial: option: add Quectel BG95 modem
USB: serial: pl2303: fix type detection for odd device
xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI
xhci: Remove quirk for over 10 year old evaluation hardware
xhci: prevent U2 link power state if Intel tier policy prevented U1
xhci: use generic command timer for stop endpoint commands.
usb: host: xhci-plat: omit shared hcd if either root hub has no ports
usb: host: xhci-plat: prepare operation w/o shared hcd
usb: host: xhci-plat: create shared hcd after having added main hcd
xhci: prepare for operation w/o shared hcd
xhci: factor out parts of xhci_gen_setup()
...
Linus Torvalds [Fri, 3 Jun 2022 17:44:43 +0000 (10:44 -0700)]
Merge tag 'staging-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here is the big set of staging driver updates for 5.19-rc1.
Lots of forward progress happened this development cycle, one driver
(wfx wireless driver) got merged into the real portion of the kernel,
and another one (unisys) was removed as no one is around anymore to
take care of it and no one has the hardware. Combined with loads of
tiny driver cleanups overall we removed 13k lines of code from the
tree, a nice improvement.
Other than the wfx and unisys driver changes the major points of this
merge is:
- r8188eu driver cleanups. So many cleanups. It's amazing just how
many things have been cleaned up here, and yet, how many remain to
go. Lots of work happened here, and it doesn't look to slow down
any time soon.
- other wifi driver cleanups. Not as many as the r8188eu driver, but
still pretty impressive from a janitorial point of view.
- bcm2853 driver cleanups
- other very minor driver cleanups
All of these have been in the linux-next tree for weeks with no
reported issues"
* tag 'staging-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (363 commits)
staging: r8188eu: remove include/rtw_debug.h
staging: r8188eu: prevent ->Ssid overflow in rtw_wx_set_scan()
staging: r8188eu: delete rtw_wx_read/write32()
staging: r8188eu: Remove multiple assignments
staging: r8188eu: add check for kzalloc
staging: r8188eu: fix warnings in rtw_wlan_util
staging: r8188eu: fix warnings in rtw_pwrctrl
staging: r8188eu: fix warnings in rtw_p2p
staging: rtl8712: fix uninit-value in r871xu_drv_init()
staging: rtl8712: fix uninit-value in usb_read8() and friends
staging: rtl8712: add error handler in r8712_usbctrl_vendorreq()
staging: r8188eu: remove _drv_ defines from include/rtw_debug.h
staging: vc04_services: remove unused macro
staging: rtl8192u: remove null check after call container_of()
staging: rtl8192e: remove null check after call container_of()
staging: ks7010: remove null check after call container_of()
staging: r8188eu: remove HW_VAR_AC_PARAM_BE from SetHwReg8188EU()
staging: r8188eu: assoc_rsp and assoc_rsp_len are not used
staging: r8188eu: last_rx_mgnt_pkts is set but not used
staging: r8188eu: simplify error handling in recv_func_prehandle
...
Linus Torvalds [Fri, 3 Jun 2022 17:34:34 +0000 (10:34 -0700)]
Merge tag 'spdx-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX updates from Greg KH:
"Here are some SPDX license marker changes.
The SPDX-labeling effort has started to pick up again, so here are
some changes for various parts of the tree that are related to this
effort.
Included in here are:
- freevxfs license updates
- spihash.c license cleanups
- spdxcheck script updates to make things easier to work with going
forward
All of the license updates came from the original authors/copyright
holders of the code involved.
All of these have been in linux-next for weeks with no reported
issues"
* tag 'spdx-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
siphash: add SPDX tags as sole licensing authority
scripts/spdxcheck: Exclude top-level README
scripts/spdxcheck: Exclude MAINTAINERS/CREDITS
scripts/spdxcheck: Exclude config directories
scripts/spdxcheck: Put excluded files and directories into a separate file
scripts/spdxcheck: Add option to display files without SPDX
scripts/spdxcheck: Add [sub]directory statistics
scripts/spdxcheck: Add directory statistics
scripts/spdxcheck: Add percentage to statistics
freevxfs: relicense to GPLv2 only
Linus Torvalds [Fri, 3 Jun 2022 17:25:56 +0000 (10:25 -0700)]
Merge tag 'for-5.19/drivers-2022-06-02' of git://git.kernel.dk/linux-block
Pull more block driver updates from Jens Axboe:
"A collection of stragglers that were late on sending in their changes
and just followup fixes.
- NVMe fixes pull request via Christoph:
- set controller enable bit in a separate write (Niklas Cassel)
- disable namespace identifiers for the MAXIO MAP1001 (Christoph)
- fix a comment typo (Julia Lawall)"
- MD fixes pull request via Song:
- Remove uses of bdevname (Christoph Hellwig)
- Bug fixes (Guoqing Jiang, and Xiao Ni)
- bcache fixes series (Coly)
- null_blk zoned write fix (Damien)
- nbd fixes (Yu, Zhang)
- Fix for loop partition scanning (Christoph)"
* tag 'for-5.19/drivers-2022-06-02' of git://git.kernel.dk/linux-block: (23 commits)
block: null_blk: Fix null_zone_write()
nvmet: fix typo in comment
nvme: set controller enable bit in a separate write
nvme-pci: disable namespace identifiers for the MAXIO MAP1001
bcache: avoid unnecessary soft lockup in kworker update_writeback_rate()
nbd: use pr_err to output error message
nbd: fix possible overflow on 'first_minor' in nbd_dev_add()
nbd: fix io hung while disconnecting device
nbd: don't clear 'NBD_CMD_INFLIGHT' flag if request is not completed
nbd: fix race between nbd_alloc_config() and module removal
nbd: call genl_unregister_family() first in nbd_cleanup()
md: bcache: check the return value of kzalloc() in detached_dev_do_request()
bcache: memset on stack variables in bch_btree_check() and bch_sectors_dirty_init()
block, loop: support partitions without scanning
bcache: avoid journal no-space deadlock by reserving 1 journal bucket
bcache: remove incremental dirty sector counting for bch_sectors_dirty_init()
bcache: improve multithreaded bch_sectors_dirty_init()
bcache: improve multithreaded bch_btree_check()
md: fix double free of io_acct_set bioset
md: Don't set mddev private to NULL in raid0 pers->free
...
Linus Torvalds [Fri, 3 Jun 2022 17:21:43 +0000 (10:21 -0700)]
Merge tag 'for-5.19/block-exec-2022-06-02' of git://git.kernel.dk/linux-block
Pull block request execute cleanups from Jens Axboe:
"This change was advertised in the initial core block pull request, but
didn't actually make that branch as we deferred it to a post-merge
pull request to avoid a bunch of cross branch issues.
This series cleans up the block execute path quite nicely"
* tag 'for-5.19/block-exec-2022-06-02' of git://git.kernel.dk/linux-block:
blk-mq: remove the done argument to blk_execute_rq_nowait
blk-mq: avoid a mess of casts for blk_end_sync_rq
blk-mq: remove __blk_execute_rq_nowait
Linus Torvalds [Fri, 3 Jun 2022 17:14:48 +0000 (10:14 -0700)]
Merge tag 'for-5.19/block-2022-06-02' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Just a collection of fixes that have been queued up since the initial
merge window pull request, the majority of which are targeted for
stable as well.
One bio_set fix that fixes an issue with the dm adoption of cached bio
structs that got introduced in this merge window"
* tag 'for-5.19/block-2022-06-02' of git://git.kernel.dk/linux-block:
block: Fix potential deadlock in blk_ia_range_sysfs_show()
block: fix bio_clone_blkg_association() to associate with proper blkcg_gq
block: remove useless BUG_ON() in blk_mq_put_tag()
blk-mq: do not update io_ticks with passthrough requests
block: make bioset_exit() fully resilient against being called twice
block: use bio_queue_enter instead of blk_queue_enter in bio_poll
block: document BLK_STS_AGAIN usage
block: take destination bvec offsets into account in bio_copy_data_iter
blk-iolatency: Fix inflight count imbalances and IO hangs on offline
blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx
Linus Torvalds [Fri, 3 Jun 2022 17:10:38 +0000 (10:10 -0700)]
Merge tag 'io_uring-5.19-2022-06-02' of git://git.kernel.dk/linux-block
Pull more io_uring updates from Jens Axboe:
- A small series with some prep patches for the upcoming 5.20 split of
the io_uring.c file. No functional changes here, just minor bits that
are nice to get out of the way now (me)
- Fix for a memory leak in high numbered provided buffer groups,
introduced in the merge window (me)
- Wire up the new socket opcode for allocated direct descriptors,
making it consistent with the other opcodes that can instantiate a
descriptor (me)
- Fix for the inflight tracking, should go into 5.18-stable as well
(me)
- Fix for a deadlock for io-wq offloaded file slot allocations (Pavel)
- Direct descriptor failure fput leak fix (Xiaoguang)
- Fix for the direct descriptor allocation hinting in case of
unsuccessful install (Xiaoguang)
* tag 'io_uring-5.19-2022-06-02' of git://git.kernel.dk/linux-block:
io_uring: reinstate the inflight tracking
io_uring: fix deadlock on iowq file slot alloc
io_uring: let IORING_OP_FILES_UPDATE support choosing fixed file slots
io_uring: defer alloc_hint update to io_file_bitmap_set()
io_uring: ensure fput() called correspondingly when direct install fails
io_uring: wire up allocated direct descriptors for socket
io_uring: fix a memory leak of buffer group list on exit
io_uring: move shutdown under the general net section
io_uring: unify calling convention for async prep handling
io_uring: add io_op_defs 'def' pointer in req init and issue
io_uring: make prep and issue side of req handlers named consistently
io_uring: make timeout prep handlers consistent with other prep handlers
Linus Torvalds [Fri, 3 Jun 2022 17:02:52 +0000 (10:02 -0700)]
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
"vhost,virtio and vdpa features, fixes, and cleanups:
- mac vlan filter and stats support in mlx5 vdpa
- irq hardening in virtio
- performance improvements in virtio crypto
- polling i/o support in virtio blk
- ASID support in vhost
- fixes, cleanups all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (64 commits)
vdpa: ifcvf: set pci driver data in probe
vdpa/mlx5: Add RX MAC VLAN filter support
vdpa/mlx5: Remove flow counter from steering
vhost: rename vhost_work_dev_flush
vhost-test: drop flush after vhost_dev_cleanup
vhost-scsi: drop flush after vhost_dev_cleanup
vhost_vsock: simplify vhost_vsock_flush()
vhost_test: remove vhost_test_flush_vq()
vhost_net: get rid of vhost_net_flush_vq() and extra flush calls
vhost: flush dev once during vhost_dev_stop
vhost: get rid of vhost_poll_flush() wrapper
vhost-vdpa: return -EFAULT on copy_to_user() failure
vdpasim: Off by one in vdpasim_set_group_asid()
virtio: Directly use ida_alloc()/free()
virtio: use WARN_ON() to warning illegal status value
virtio: harden vring IRQ
virtio: allow to unbreak virtqueue
virtio-ccw: implement synchronize_cbs()
virtio-mmio: implement synchronize_cbs()
virtio-pci: implement synchronize_cbs()
...
Linus Torvalds [Fri, 3 Jun 2022 16:56:53 +0000 (09:56 -0700)]
Merge tag 'sound-fix-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes for 5.19 merge window. Nothing particular
stands out, as most changes are device-specific fixes and quirks"
* tag 'sound-fix-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
selftests: alsa: Handle pkg-config failure more gracefully
ALSA: usb-audio: Optimize TEAC clock quirk
ASoC: da7219: cancel AAD related work earlier for jack removal
ASoC: da7219: Fix pole orientation detection on certain headsets
ASoC: Intel: avs: Fix build error on arc, m68k and sparc
ALSA: hda/realtek - Fix microphone noise on ASUS TUF B550M-PLUS
ALSA: hda/via: Delete does not require return
ALSA: hda/realtek: Enable 4-speaker output for Dell XPS 15 9520 laptop
ASoC: Intel: common: fix typo for tplg naming
ALSA: usb-audio: Cancel pending work at closing a MIDI substream
ALSA: usb-audio: Add mixer mapping for Gigabyte B450/550 Mobos
ASoC: rt5640: Do not manipulate pin "Platform Clock" if the "Platform Clock" is not in the DAPM
ASoC: SOF: amd: Fixed Build error
ASoC: fsl_sai: Fix FSL_SAI_xDR/xFR definition
ASoC: soc-pcm: fix BE transition for TRIGGER_START
SPI peripheral device bindings need to reference spi-peripheral-props.yaml
in order to use various SPI controller specific properties. Otherwise,
the unevaluatedProperties check will reject any controller specific
properties.
Linus Torvalds [Fri, 3 Jun 2022 16:49:29 +0000 (09:49 -0700)]
Merge tag 'drm-next-2022-06-03-1' of git://anongit.freedesktop.org/drm/drm
Pull more drm updates from Dave Airlie:
"This is mostly regular fixes, msm and amdgpu. There is a tegra patch
that is bit of prep work for a 5.20 feature to avoid some inter-tree
syncs, and a couple of late addition amdgpu uAPI changes but best to
get those in early, and the userspace pieces are ready.
msm:
- Limiting WB modes to max sspp linewidth
- Fixing the supported rotations to add 180 back for IGT
- Fix to handle pm_runtime_get_sync() errors to avoid unclocked
access in the bind() path for dpu driver
- Fix the irq_free() without request issue which was a big-time
hitter in the CI-runs.
amdgpu:
- Update fdinfo to the common drm format
- uapi:
- Add VM_NOALLOC GPUVM attribute to prevent buffers for going
into the MALL
- Add AMDGPU_GEM_CREATE_DISCARDABLE flag to create buffers that
can be discarded on eviction
- Mesa code which uses these:
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16466
- Link training fixes
- DPIA fixes
- Misc code cleanups
- Aux fixes
- Hotplug fixes
- More FP clean up
- Misc GFX9/10 fixes
- Fix a possible memory leak in SMU shutdown
- SMU 13 updates
- RAS fixes
- TMZ fixes
- GC 11 updates
- SMU 11 metrics fixes
- Fix coverage blend mode for overlay plane
- Note DDR vs LPDDR memory
- Fuzz fix for CS IOCTL
- Add new PCI DID
amdkfd:
- Clean up hive setup
- Misc fixes
tegra:
- add some prelim 5.20 work to avoid inter-tree mess"
* tag 'drm-next-2022-06-03-1' of git://anongit.freedesktop.org/drm/drm: (57 commits)
drm/msm/dpu: Move min BW request and full BW disable back to mdss
drm/msm/dpu: Fix pointer dereferenced before checking
drm/msm/dpu: Remove unused code
drm/msm/disp/dpu1: remove superfluous init
drm/msm/dp: Always clear mask bits to disable interrupts at dp_ctrl_reset_irq_ctrl()
gpu: host1x: Add context bus
drm/amdgpu: add drm-client-id to fdinfo v2
drm/amdgpu: Convert to common fdinfo format v5
drm/amdgpu: bump minor version number
drm/amdgpu: add AMDGPU_VM_NOALLOC v2
drm/amdgpu: add AMDGPU_GEM_CREATE_DISCARDABLE
drm/amdgpu: add beige goby PCI ID
drm/amd/pm: Return auto perf level, if unsupported
drm/amdkfd: fix typo in comment
drm/amdgpu/gfx: fix typos in comments
drm/amdgpu/cs: make commands with 0 chunks illegal behaviour.
drm/amdgpu: differentiate between LP and non-LP DDR memory
drm/amdgpu: Resolve pcie_bif RAS recovery bug
drm/amdgpu: clean up asd on the ta_firmware_header_v2_0
drm/amdgpu/discovery: validate VCN and SDMA instances
...
Rob Herring [Wed, 25 May 2022 21:01:40 +0000 (16:01 -0500)]
dt-bindings: memory-controllers: ingenic: Split out child node properties
Binding schemas which define child node properties such as memory
controllers with timing properties need a separate schema which can be
referenced from child device schemas. This is necessary for
unevaluatedProperties checks to work properly.
Move the ingenic,nemc child properties to its own file and reference
from ingenic,nand.yaml which describes a child NAND controller.
SPI peripheral device bindings need to reference spi-peripheral-props.yaml
in order to use various SPI controller specific properties. Otherwise,
the unevaluatedProperties check will reject any controller specific
properties.
Kees Cook [Wed, 18 May 2022 20:52:23 +0000 (13:52 -0700)]
nodemask: Fix return values to be unsigned
The nodemask routines had mixed return values that provided potentially
signed return values that could never happen. This was leading to the
compiler getting confusing about the range of possible return values
(it was thinking things could be negative where they could not be). Fix
all the nodemask routines that should be returning unsigned
(or bool) values. Silences:
mm/swapfile.c: In function ‘setup_swap_info’:
mm/swapfile.c:2291:47: error: array subscript -1 is below array bounds of ‘struct plist_node[]’ [-Werror=array-bounds]
2291 | p->avail_lists[i].prio = 1;
| ~~~~~~~~~~~~~~^~~
In file included from mm/swapfile.c:16:
./include/linux/swap.h:292:27: note: while referencing ‘avail_lists’
292 | struct plist_node avail_lists[]; /*
| ^~~~~~~~~~~
Reported-by: Christophe de Dinechin <dinechin@redhat.com> Link: https://lore.kernel.org/lkml/20220414150855.2407137-3-dinechin@redhat.com/ Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Yury Norov <yury.norov@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Yury Norov <yury.norov@gmail.com>
Kees Cook [Wed, 18 May 2022 20:52:22 +0000 (13:52 -0700)]
bitmap: Fix return values to be unsigned
Both nodemask and bitmap routines had mixed return values that provided
potentially signed return values that could never happen. This was
leading to the compiler getting confusing about the range of possible
return values (it was thinking things could be negative where they could
not be). In preparation for fixing nodemask, fix all the bitmap routines
that should be returning unsigned (or bool) values.
Cc: Yury Norov <yury.norov@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Christophe de Dinechin <dinechin@redhat.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Zhen Lei <thunder.leizhen@huawei.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Yury Norov <yury.norov@gmail.com>
Yury Norov [Tue, 10 May 2022 01:54:23 +0000 (18:54 -0700)]
KVM: x86: hyper-v: replace bitmap_weight() with hweight64()
kvm_hv_flush_tlb() applies bitmap API to a u64 variable valid_bank_mask.
Since valid_bank_mask has a fixed size, we can use hweight64() and avoid
excessive bloating.
CC: Borislav Petkov <bp@alien8.de> CC: Dave Hansen <dave.hansen@linux.intel.com> CC: H. Peter Anvin <hpa@zytor.com> CC: Ingo Molnar <mingo@redhat.com> CC: Jim Mattson <jmattson@google.com> CC: Joerg Roedel <joro@8bytes.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Sean Christopherson <seanjc@google.com> CC: Thomas Gleixner <tglx@linutronix.de> CC: Vitaly Kuznetsov <vkuznets@redhat.com> CC: Wanpeng Li <wanpengli@tencent.com> CC: kvm@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: x86@kernel.org Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Yury Norov <yury.norov@gmail.com>
Yury Norov [Thu, 19 May 2022 17:15:04 +0000 (10:15 -0700)]
KVM: x86: hyper-v: fix type of valid_bank_mask
In kvm_hv_flush_tlb(), valid_bank_mask is declared as unsigned long,
but is used as u64, which is wrong for i386, and has been spotted by
LKP after applying "KVM: x86: hyper-v: replace bitmap_weight() with
hweight64()"
drm/amd/pm: use bitmap_{from,to}_arr32 where appropriate
The smu_v1X_0_set_allowed_mask() uses bitmap_copy() to convert
bitmap to 32-bit array. This may be wrong due to endiannes issues.
Fix it by switching to bitmap_{from,to}_arr32.
CC: Alexander Gordeev <agordeev@linux.ibm.com> CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Christian Borntraeger <borntraeger@linux.ibm.com> CC: Claudio Imbrenda <imbrenda@linux.ibm.com> CC: David Hildenbrand <david@redhat.com> CC: Heiko Carstens <hca@linux.ibm.com> CC: Janosch Frank <frankja@linux.ibm.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> CC: Sven Schnelle <svens@linux.ibm.com> CC: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Yury Norov <yury.norov@gmail.com>
Manipulating 64-bit arrays with bitmap functions is potentially dangerous
because on 32-bit BE machines the order of halfwords doesn't match.
Another issue is that compiler may throw a warning about out-of-boundary
access.
This patch adds bitmap_{from,to}_arr64 functions in addition to existing
bitmap_{from,to}_arr32.
CC: Alexander Gordeev <agordeev@linux.ibm.com> CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Christian Borntraeger <borntraeger@linux.ibm.com> CC: Claudio Imbrenda <imbrenda@linux.ibm.com> CC: David Hildenbrand <david@redhat.com> CC: Heiko Carstens <hca@linux.ibm.com> CC: Janosch Frank <frankja@linux.ibm.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> CC: Sven Schnelle <svens@linux.ibm.com> CC: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Yury Norov <yury.norov@gmail.com>
lib/bitmap: extend comment for bitmap_(from,to)_arr32()
On LE systems bitmaps are naturally ordered, therefore we can potentially
use bitmap_copy routines when converting from 32-bit arrays, even if host
system is 64-bit. But it may lead to out-of-bond access due to unsafe
typecast, and the bitmap_(from,to)_arr32 comment doesn't explain that
clearly
CC: Alexander Gordeev <agordeev@linux.ibm.com> CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Christian Borntraeger <borntraeger@linux.ibm.com> CC: Claudio Imbrenda <imbrenda@linux.ibm.com> CC: David Hildenbrand <david@redhat.com> CC: Heiko Carstens <hca@linux.ibm.com> CC: Janosch Frank <frankja@linux.ibm.com> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> CC: Sven Schnelle <svens@linux.ibm.com> CC: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Yury Norov <yury.norov@gmail.com>
The order of the arguments in function documentation doesn't fit the
implementation. Change the documentation so that it corresponds to the
code. This prevent people to get confused when reading the documentation.
Yury Norov [Sun, 23 Jan 2022 18:39:25 +0000 (10:39 -0800)]
MAINTAINERS: add cpumask and nodemask files to BITMAP_API
cpumask and nodemask APIs are thin wrappers around basic bitmap API, and
corresponding files are not formally maintained. This patch adds them to
BITMAP_API section, so that bitmap folks would have closer look at it.
Yury Norov [Sun, 23 Jan 2022 18:38:57 +0000 (10:38 -0800)]
arch/x86: replace nodes_weight with nodes_empty where appropriate
mm code calls nodes_weight() to check if any bit of a given nodemask is
set. We can do it more efficiently with nodes_empty() because nodes_empty()
stops traversing the nodemask as soon as it finds first set bit, while
nodes_weight() counts all bits unconditionally.
Yury Norov [Sun, 23 Jan 2022 18:38:56 +0000 (10:38 -0800)]
mm/vmstat: replace cpumask_weight with cpumask_empty where appropriate
mm/vmstat.c code calls cpumask_weight() to check if any bit of a given
cpumask is set. We can do it more efficiently with cpumask_empty() because
cpumask_empty() stops traversing the cpumask as soon as it finds first set
bit, while cpumask_weight() counts all bits unconditionally.
Signed-off-by: Yury Norov <yury.norov@gmail.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Yury Norov [Sun, 23 Jan 2022 18:38:55 +0000 (10:38 -0800)]
clocksource: replace cpumask_weight with cpumask_empty in clocksource.c
clocksource_verify_percpu() calls cpumask_weight() to check if any bit of
a given cpumask is set. We can do it more efficiently with cpumask_empty()
because cpumask_empty() stops traversing the cpumask as soon as it finds
first set bit, while cpumask_weight() counts all bits unconditionally.
Yury Norov [Sun, 23 Jan 2022 18:38:51 +0000 (10:38 -0800)]
genirq/affinity: replace cpumask_weight with cpumask_empty where appropriate
__irq_build_affinity_masks() calls cpumask_weight() to check if
any bit of a given cpumask is set. We can do it more efficiently with
cpumask_empty() because cpumask_empty() stops traversing the cpumask as
soon as it finds first set bit, while cpumask_weight() counts all bits
unconditionally.
Yury Norov [Sun, 23 Jan 2022 18:38:50 +0000 (10:38 -0800)]
irq: mips: replace cpumask_weight with cpumask_empty where appropriate
bcm6345_l1_of_init() calls cpumask_weight() to check if any bit of a given
cpumask is set. We can do it more efficiently with cpumask_empty() because
cpumask_empty() stops traversing the cpumask as soon as it finds first set
bit, while cpumask_weight() counts all bits unconditionally.
Yury Norov [Sun, 23 Jan 2022 18:38:48 +0000 (10:38 -0800)]
drm/i915/pmu: replace cpumask_weight with cpumask_empty where appropriate
i915_pmu_cpu_online() calls cpumask_weight() to check if any bit of a
given cpumask is set. We can do it more efficiently with cpumask_empty()
because cpumask_empty() stops traversing the cpumask as soon as it finds
first set bit, while cpumask_weight() counts all bits unconditionally.
Yury Norov [Sun, 23 Jan 2022 18:38:46 +0000 (10:38 -0800)]
arch/x86: replace cpumask_weight with cpumask_empty where appropriate
In some cases, arch/x86 code calls cpumask_weight() to check if any bit of
a given cpumask is set. We can do it more efficiently with cpumask_empty()
because cpumask_empty() stops traversing the cpumask as soon as it finds
first set bit, while cpumask_weight() counts all bits unconditionally.
Signed-off-by: Yury Norov <yury.norov@gmail.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Yury Norov [Sun, 23 Jan 2022 18:38:45 +0000 (10:38 -0800)]
arch/ia64: replace cpumask_weight with cpumask_empty where appropriate
setup_arch() calls cpumask_weight() to check if any bit of a given cpumask
is set. We can do it more efficiently with cpumask_empty() because
cpumask_empty() stops traversing the cpumask as soon as it finds first set
bit, while cpumask_weight() counts all bits unconditionally.
Yury Norov [Sun, 23 Jan 2022 18:38:44 +0000 (10:38 -0800)]
arch/alpha: replace cpumask_weight with cpumask_empty where appropriate
common_shutdown_1() calls cpumask_weight() to check if any bit of a
given cpumask is set. We can do it more efficiently with cpumask_empty()
because cpumask_empty() stops traversing the cpumask as soon as it finds
first set bit, while cpumask_weight() counts all bits unconditionally.
Huacai Chen [Tue, 31 May 2022 10:04:12 +0000 (18:04 +0800)]
LoongArch: Add Non-Uniform Memory Access (NUMA) support
Add Non-Uniform Memory Access (NUMA) support for LoongArch. LoongArch
has 48-bit physical address, but the HyperTransport I/O bus only support
40-bit address, so we need a custom phys_to_dma() and dma_to_phys() to
extract the 4-bit node id (bit 44~47) from Loongson-3's 48-bit physical
address space and embed it into 40-bit. In the 40-bit dma address, node
id offset can be read from the LS7A_DMA_CFG register.
Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Huacai Chen [Tue, 31 May 2022 10:04:11 +0000 (18:04 +0800)]
LoongArch: Add misc common routines
Add some misc common routines for LoongArch, including: asm-offsets
routines, futex functions, i/o memory access functions, frame-buffer
functions, procfs information display, etc.
Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Huacai Chen [Tue, 31 May 2022 10:04:11 +0000 (18:04 +0800)]
LoongArch: Add signal handling support
Add ucontext/sigcontext definition and signal handling support for
LoongArch.
Cc: Eric Biederman <ebiederm@xmission.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Huacai Chen [Tue, 31 May 2022 10:04:11 +0000 (18:04 +0800)]
LoongArch: Add system call support
Add system call support and related uaccess.h for LoongArch.
Q: Why keep _ARCH_WANT_SYS_CLONE definition while there is clone3:
A: The latest glibc release has some basic support for clone3 but it is
not complete. E.g., pthread_create() and spawni() have converted to
use clone3 but fork() will still use clone. Moreover, some seccomp
related applications can still not work perfectly with clone3. E.g.,
Chromium sandbox cannot work at all and there is no solution for it,
which is more terrible than the fork() story [1].
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