David S. Miller [Thu, 23 Nov 2017 17:53:38 +0000 (02:53 +0900)]
Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Fixes 2017-11-21
This series contains fixes for igb/vf, ixgbe/vf, i40e/vf and fm10k.
Jake fixes a regression issue with older firmware, where we were using
the NVM lock to synchronize NVM reads for all devices and firmware
versions, yet this caused issues with older firmware prior to version
1.5. Fixed this by only grabbing the lock for newer devices and firmware
version 1.5 or newer.
Zijie Pan fixes the calculation of the i40e VF MAC addresses, where it was
possible to increment to the next MAC entry without calling
i40e_add_mac_filter().
Amritha removes the upper limit of 64 queues on a channel VSI since the
upper bound is determined by the VSI's num_queue_pairs.
Filip fixes an issue during FLR resets, where should have been checking
for upcoming core reset and if so, just return with I40E_ERR_NOT_READY.
Alan fixes the notifying clients of l2 parameters by copying the
parameters to the client instance struct and re-organizes the priority
in which the client tasks fire so that if the flag for notifying l2
params is set, it will trigger before the client open task. Also fixed
the promiscuous settings after reset for all the VSI's.
Brian King from IBM fixes an issue seen on Power systems which would
result in skb list corruption and eventual kernel oops. Brian
provides the same fix for nearly all our drivers, to replace the
read_barrier_depends with smp_rmb() to ensure loads are ordered with
respect to the load of tx_buffer->next_to_watch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Wed, 22 Nov 2017 01:37:46 +0000 (17:37 -0800)]
net: dsa: bcm_sf2: Clear IDDQ_GLOBAL_PWR bit for PHY
The PHY on BCM7278 has an additional bit that needs to be cleared:
IDDQ_GLOBAL_PWR, without doing this, the PHY remains stuck in reset out
of suspend/resume cycles.
Fixes: 0fe9933804eb ("net: dsa: bcm_sf2: Add support for BCM7278 integrated switch") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Several BPF offloading fixes, from Jakub. Among others:
- Limit offload to cls_bpf and XDP program types only.
- Move device validation into the driver and don't make
any assumptions about the device in the classifier due
to shared blocks semantics.
- Don't pass offloaded XDP program into the driver when
it should be run in native XDP instead. Offloaded ones
are not JITed for the host in such cases.
- Don't destroy device offload state when moved to
another namespace.
- Revert dumping offload info into user space for now,
since ifindex alone is not sufficient. This will be
redone properly for bpf-next tree.
2) Fix test_verifier to avoid using bpf_probe_write_user()
helper in test cases, since it's dumping a warning into
kernel log which may confuse users when only running tests.
Switch to use bpf_trace_printk() instead, from Yonghong.
3) Several fixes for correcting ARG_CONST_SIZE_OR_ZERO semantics
before it becomes uabi, from Gianluca. More specifically:
- Add a type ARG_PTR_TO_MEM_OR_NULL that is used only
by bpf_csum_diff(), where the argument is either a
valid pointer or NULL. The subsequent ARG_CONST_SIZE_OR_ZERO
then enforces a valid pointer in case of non-0 size
or a valid pointer or NULL in case of size 0. Given
that, the semantics for ARG_PTR_TO_MEM in combination
with ARG_CONST_SIZE_OR_ZERO are now such that in case
of size 0, the pointer must always be valid and cannot
be NULL. This fix in semantics allows for bpf_probe_read()
to drop the recently added size == 0 check in the helper
that would become part of uabi otherwise once released.
At the same time we can then fix bpf_probe_read_str() and
bpf_perf_event_output() to use ARG_CONST_SIZE_OR_ZERO
instead of ARG_CONST_SIZE in order to fix recently
reported issues by Arnaldo et al, where LLVM optimizes
two boundary checks into a single one for unknown
variables where the verifier looses track of the variable
bounds and thus rejects valid programs otherwise.
4) A fix for the verifier for the case when it detects
comparison of two constants where the branch is guaranteed
to not be taken at runtime. Verifier will rightfully prune
the exploration of such paths, but we still pass the program
to JITs, where they would complain about using reserved
fields, etc. Track such dead instructions and sanitize
them with mov r0,r0. Rejection is not possible since LLVM
may generate them for valid C code and doesn't do as much
data flow analysis as verifier. For bpf-next we might
implement removal of such dead code and adjust branches
instead. Fix from Alexei.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Tue, 21 Nov 2017 15:22:25 +0000 (10:22 -0500)]
net: accept UFO datagrams from tuntap and packet
Tuntap and similar devices can inject GSO packets. Accept type
VIRTIO_NET_HDR_GSO_UDP, even though not generating UFO natively.
Processes are expected to use feature negotiation such as TUNSETOFFLOAD
to detect supported offload types and refrain from injecting other
packets. This process breaks down with live migration: guest kernels
do not renegotiate flags, so destination hosts need to expose all
features that the source host does.
Partially revert the UFO removal from 182e0b6b5846~1..d9d30adf5677.
This patch introduces nearly(*) no new code to simplify verification.
It brings back verbatim tuntap UFO negotiation, VIRTIO_NET_HDR_GSO_UDP
insertion and software UFO segmentation.
It does not reinstate protocol stack support, hardware offload
(NETIF_F_UFO), SKB_GSO_UDP tunneling in SKB_GSO_SOFTWARE or reception
of VIRTIO_NET_HDR_GSO_UDP packets in tuntap.
To support SKB_GSO_UDP reappearing in the stack, also reinstate
logic in act_csum and openvswitch. Achieve equivalence with v4.13 HEAD
by squashing in commit 939912216fa8 ("net: skb_needs_check() removes
CHECKSUM_UNNECESSARY check for tx.") and reverting commit 8d63bee643f1
("net: avoid skb_warn_bad_offload false positives on UFO").
(*) To avoid having to bring back skb_shinfo(skb)->ip6_frag_id,
ipv6_proxy_select_ident is changed to return a __be32 and this is
assigned directly to the frag_hdr. Also, SKB_GSO_UDP is inserted
at the end of the enum to minimize code churn.
Tested
Booted a v4.13 guest kernel with QEMU. On a host kernel before this
patch `ethtool -k eth0` shows UFO disabled. After the patch, it is
enabled, same as on a v4.13 host kernel.
A UFO packet sent from the guest appears on the tap device:
host:
nc -l -p -u 8000 &
tcpdump -n -i tap0
Commit 6fa1ba61520576cf1346c4ff09a056f2950cb3bf partially
implemented the new ethtool API, by replacing get_settings()
with get_link_ksettings(). This breaks ethtool, since the
userspace tool (according to the new API specs) never tries
the legacy set() call, when the new get() call succeeds.
All attempts to chance some setting from userspace result in:
> Cannot set new settings: Operation not supported
Implement the missing set() call.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Tue, 21 Nov 2017 15:08:57 +0000 (07:08 -0800)]
net: ipv6: Fixup device for anycast routes during copy
Florian reported a breakage with anycast routes due to commit 4832c30d5458 ("net: ipv6: put host and anycast routes on device with
address"). Prior to this commit anycast routes were added against the
loopback device causing repetitive route entries with no insight into
why they existed. e.g.:
$ ip -6 ro ls table local type anycast
anycast 2001:db8:1:: dev lo proto kernel metric 0 pref medium
anycast 2001:db8:2:: dev lo proto kernel metric 0 pref medium
anycast fe80:: dev lo proto kernel metric 0 pref medium
anycast fe80:: dev lo proto kernel metric 0 pref medium
The point of commit 4832c30d5458 is to add the routes using the device
with the address which is causing the route to be added. e.g.,:
$ ip -6 ro ls table local type anycast
anycast 2001:db8:1:: dev eth1 proto kernel metric 0 pref medium
anycast 2001:db8:2:: dev eth2 proto kernel metric 0 pref medium
anycast fe80:: dev eth2 proto kernel metric 0 pref medium
anycast fe80:: dev eth1 proto kernel metric 0 pref medium
For traffic to work as it did before, the dst device needs to be switched
to the loopback when the copy is created similar to local routes.
Fixes: 4832c30d5458 ("net: ipv6: put host and anycast routes on device with address") Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net/smc: Fix preinitialization of buf_desc in __smc_buf_create()
With gcc-4.1.2:
net/smc/smc_core.c: In function ‘__smc_buf_create’:
net/smc/smc_core.c:567: warning: ‘bufsize’ may be used uninitialized in this function
Indeed, if the for-loop is never executed, bufsize is used
uninitialized. In addition, buf_desc is stored for later use, while it
is still a NULL pointer.
Before, error handling was done by checking if buf_desc is non-NULL.
The cleanup changed this to an error check, but forgot to update the
preinitialization of buf_desc to an error pointer.
Update the preinitializatin of buf_desc to fix this.
Fixes: b33982c3a6838d13 ("net/smc: cleanup function __smc_buf_create()") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun [Tue, 21 Nov 2017 12:23:53 +0000 (13:23 +0100)]
net/smc: use sk_rcvbuf as start for rmb creation
Commit 3e034725c0d8 ("net/smc: common functions for RMBs and send buffers")
merged handling of SMC receive and send buffers. It introduced sk_buf_size
as merged start value for size determination. But since sk_buf_size is not
used at all, sk_sndbuf is erroneously used as start for rmb creation.
This patch makes sure, sk_buf_size is really used as intended, and
sk_rcvbuf is used as start value for rmb creation.
Fixes: 3e034725c0d8 ("net/smc: common functions for RMBs and send buffers") Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Hans Wippel <hwippel@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Ido Schimmel [Tue, 21 Nov 2017 07:50:12 +0000 (09:50 +0200)]
ipv6: Do not consider linkdown nexthops during multipath
When the 'ignore_routes_with_linkdown' sysctl is set, we should not
consider linkdown nexthops during route lookup.
While the code correctly verifies that the initially selected route
('match') has a carrier, it does not perform the same check in the
subsequent multipath selection, resulting in a potential packet loss.
In case the chosen route does not have a carrier and the sysctl is set,
choose the initially selected route.
Fixes: 35103d11173b ("net: ipv6 sysctl option to ignore routes when nexthop link is down") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Roman Kapl [Mon, 20 Nov 2017 21:21:13 +0000 (22:21 +0100)]
net: sched: fix crash when deleting secondary chains
If you flush (delete) a filter chain other than chain 0 (such as when
deleting the device), the kernel may run into a use-after-free. The
chain refcount must not be decremented unless we are sure we are done
with the chain.
To reproduce the bug, run:
ip link add dtest type dummy
tc qdisc add dev dtest ingress
tc filter add dev dtest chain 1 parent ffff: flower
ip link del dtest
Introduced in: commit f93e1cdcf42c ("net/sched: fix filter flushing"),
but unless you have KAsan or luck, you won't notice it until
commit 0dadc117ac8b ("cls_flower: use tcf_exts_get_net() before call_rcu()")
Fixes: f93e1cdcf42c ("net/sched: fix filter flushing") Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Roman Kapl <code@rkapl.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
when the verifier detects that register contains a runtime constant
and it's compared with another constant it will prune exploration
of the branch that is guaranteed not to be taken at runtime.
This is all correct, but malicious program may be constructed
in such a way that it always has a constant comparison and
the other branch is never taken under any conditions.
In this case such path through the program will not be explored
by the verifier. It won't be taken at run-time either, but since
all instructions are JITed the malicious program may cause JITs
to complain about using reserved fields, etc.
To fix the issue we have to track the instructions explored by
the verifier and sanitize instructions that are dead at run time
with NOPs. We cannot reject such dead code, since llvm generates
it for valid C code, since it doesn't do as much data flow
analysis as the verifier does.
Fixes: 17a5267067f3 ("bpf: verifier (add verifier core)") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Daniel Borkmann [Wed, 22 Nov 2017 20:40:54 +0000 (21:40 +0100)]
Merge branch 'bpf-fix-null-arg-semantics'
Gianluca Borello says:
====================
This set includes some fixes in semantics and usability issues that emerged
recently, and would be good to have them in net before the next release.
In particular, ARG_CONST_SIZE_OR_ZERO semantics was recently changed in
commit 9fd29c08e520 ("bpf: improve verifier ARG_CONST_SIZE_OR_ZERO
semantics") with the goal of letting the compiler generate simpler code
that the verifier can more easily accept.
To handle this change in semantics, a few checks in some helpers were
added, like in commit 9c019e2bc4b2 ("bpf: change helper bpf_probe_read arg2
type to ARG_CONST_SIZE_OR_ZERO"), and those checks are less than ideal
because once they make it into a released kernel bpf programs can start
relying on them, preventing the possibility of being removed later on.
This patch tries to fix the issue by introducing a new argument type
ARG_PTR_TO_MEM_OR_NULL that can be used for helpers that can receive a
<NULL, 0> tuple. By doing so, we can fix the semantics of the other helpers
that don't need <NULL, 0> and can just handle <!NULL, 0>, allowing the code
to get rid of those checks.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Gianluca Borello [Wed, 22 Nov 2017 18:32:56 +0000 (18:32 +0000)]
bpf: change bpf_perf_event_output arg5 type to ARG_CONST_SIZE_OR_ZERO
Commit 9fd29c08e520 ("bpf: improve verifier ARG_CONST_SIZE_OR_ZERO
semantics") relaxed the treatment of ARG_CONST_SIZE_OR_ZERO due to the way
the compiler generates optimized BPF code when checking boundaries of an
argument from C code. A typical example of this optimized code can be
generated using the bpf_perf_event_output helper when operating on variable
memory:
/* len is a generic scalar */
if (len > 0 && len <= 0x7fff)
bpf_perf_event_output(ctx, &perf_map, 0, buf, len);
110: (79) r5 = *(u64 *)(r10 -40)
111: (bf) r1 = r5
112: (07) r1 += -1
113: (25) if r1 > 0x7ffe goto pc+6
114: (bf) r1 = r6
115: (18) r2 = 0xffff94e5f166c200
117: (b7) r3 = 0
118: (bf) r4 = r7
119: (85) call bpf_perf_event_output#25
R5 min value is negative, either use unsigned or 'var &= const'
With this code, the verifier loses track of the variable.
Replacing arg5 with ARG_CONST_SIZE_OR_ZERO is thus desirable since it
avoids this quite common case which leads to usability issues, and the
compiler generates code that the verifier can more easily test:
if (len <= 0x7fff)
bpf_perf_event_output(ctx, &perf_map, 0, buf, len);
or
bpf_perf_event_output(ctx, &perf_map, 0, buf, len & 0x7fff);
No changes to the bpf_perf_event_output helper are necessary since it can
handle a case where size is 0, and an empty frame is pushed.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Gianluca Borello [Wed, 22 Nov 2017 18:32:55 +0000 (18:32 +0000)]
bpf: change bpf_probe_read_str arg2 type to ARG_CONST_SIZE_OR_ZERO
Commit 9fd29c08e520 ("bpf: improve verifier ARG_CONST_SIZE_OR_ZERO
semantics") relaxed the treatment of ARG_CONST_SIZE_OR_ZERO due to the way
the compiler generates optimized BPF code when checking boundaries of an
argument from C code. A typical example of this optimized code can be
generated using the bpf_probe_read_str helper when operating on variable
memory:
/* len is a generic scalar */
if (len > 0 && len <= 0x7fff)
bpf_probe_read_str(p, len, s);
251: (79) r1 = *(u64 *)(r10 -88)
252: (07) r1 += -1
253: (25) if r1 > 0x7ffe goto pc-42
254: (bf) r1 = r7
255: (79) r2 = *(u64 *)(r10 -88)
256: (bf) r8 = r4
257: (85) call bpf_probe_read_str#45
R2 min value is negative, either use unsigned or 'var &= const'
With this code, the verifier loses track of the variable.
Replacing arg2 with ARG_CONST_SIZE_OR_ZERO is thus desirable since it
avoids this quite common case which leads to usability issues, and the
compiler generates code that the verifier can more easily test:
if (len <= 0x7fff)
bpf_probe_read_str(p, len, s);
or
bpf_probe_read_str(p, len & 0x7fff, s);
No changes to the bpf_probe_read_str helper are necessary since
strncpy_from_unsafe itself immediately returns if the size passed is 0.
Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Gianluca Borello [Wed, 22 Nov 2017 18:32:54 +0000 (18:32 +0000)]
bpf: remove explicit handling of 0 for arg2 in bpf_probe_read
Commit 9c019e2bc4b2 ("bpf: change helper bpf_probe_read arg2 type to
ARG_CONST_SIZE_OR_ZERO") changed arg2 type to ARG_CONST_SIZE_OR_ZERO to
simplify writing bpf programs by taking advantage of the new semantics
introduced for ARG_CONST_SIZE_OR_ZERO which allows <!NULL, 0> arguments.
In order to prevent the helper from actually passing a NULL pointer to
probe_kernel_read, which can happen when <NULL, 0> is passed to the helper,
the commit also introduced an explicit check against size == 0.
After the recent introduction of the ARG_PTR_TO_MEM_OR_NULL type,
bpf_probe_read can not receive a pair of <NULL, 0> arguments anymore, thus
the check is not needed anymore and can be removed, since probe_kernel_read
can correctly handle a <!NULL, 0> call. This also fixes the semantics of
the helper before it gets officially released and bpf programs start
relying on this check.
Fixes: 9c019e2bc4b2 ("bpf: change helper bpf_probe_read arg2 type to ARG_CONST_SIZE_OR_ZERO") Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Gianluca Borello [Wed, 22 Nov 2017 18:32:53 +0000 (18:32 +0000)]
bpf: introduce ARG_PTR_TO_MEM_OR_NULL
With the current ARG_PTR_TO_MEM/ARG_PTR_TO_UNINIT_MEM semantics, an helper
argument can be NULL when the next argument type is ARG_CONST_SIZE_OR_ZERO
and the verifier can prove the value of this next argument is 0. However,
most helpers are just interested in handling <!NULL, 0>, so forcing them to
deal with <NULL, 0> makes the implementation of those helpers more
complicated for no apparent benefits, requiring them to explicitly handle
those corner cases with checks that bpf programs could start relying upon,
preventing the possibility of removing them later.
Solve this by making ARG_PTR_TO_MEM/ARG_PTR_TO_UNINIT_MEM never accept NULL
even when ARG_CONST_SIZE_OR_ZERO is set, and introduce a new argument type
ARG_PTR_TO_MEM_OR_NULL to explicitly deal with the NULL case.
Currently, the only helper that needs this is bpf_csum_diff_proto(), so
change arg1 and arg3 to this new type as well.
Also add a new battery of tests that explicitly test the
!ARG_PTR_TO_MEM_OR_NULL combination: all the current ones testing the
various <NULL, 0> variations are focused on bpf_csum_diff, so cover also
other helpers.
Signed-off-by: Gianluca Borello <g.borello@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Brian King [Fri, 17 Nov 2017 17:05:49 +0000 (11:05 -0600)]
i40evf: Use smp_rmb rather than read_barrier_depends
The original issue being fixed in this patch was seen with the ixgbe
driver, but the same issue exists with i40evf as well, as the code is
very similar. read_barrier_depends is not sufficient to ensure
loads following it are not speculatively loaded out of order
by the CPU, which can result in stale data being loaded, causing
potential system crashes.
Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Brian King [Fri, 17 Nov 2017 17:05:48 +0000 (11:05 -0600)]
fm10k: Use smp_rmb rather than read_barrier_depends
The original issue being fixed in this patch was seen with the ixgbe
driver, but the same issue exists with fm10k as well, as the code is
very similar. read_barrier_depends is not sufficient to ensure
loads following it are not speculatively loaded out of order
by the CPU, which can result in stale data being loaded, causing
potential system crashes.
Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Brian King [Fri, 17 Nov 2017 17:05:47 +0000 (11:05 -0600)]
igb: Use smp_rmb rather than read_barrier_depends
The original issue being fixed in this patch was seen with the ixgbe
driver, but the same issue exists with igb as well, as the code is
very similar. read_barrier_depends is not sufficient to ensure
loads following it are not speculatively loaded out of order
by the CPU, which can result in stale data being loaded, causing
potential system crashes.
Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Brian King [Fri, 17 Nov 2017 17:05:46 +0000 (11:05 -0600)]
igbvf: Use smp_rmb rather than read_barrier_depends
The original issue being fixed in this patch was seen with the ixgbe
driver, but the same issue exists with igbvf as well, as the code is
very similar. read_barrier_depends is not sufficient to ensure
loads following it are not speculatively loaded out of order
by the CPU, which can result in stale data being loaded, causing
potential system crashes.
Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Brian King [Fri, 17 Nov 2017 17:05:45 +0000 (11:05 -0600)]
ixgbevf: Use smp_rmb rather than read_barrier_depends
The original issue being fixed in this patch was seen with the ixgbe
driver, but the same issue exists with ixgbevf as well, as the code is
very similar. read_barrier_depends is not sufficient to ensure
loads following it are not speculatively loaded out of order
by the CPU, which can result in stale data being loaded, causing
potential system crashes.
Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Brian King [Fri, 17 Nov 2017 17:05:44 +0000 (11:05 -0600)]
i40e: Use smp_rmb rather than read_barrier_depends
The original issue being fixed in this patch was seen with the ixgbe
driver, but the same issue exists with i40e as well, as the code is
very similar. read_barrier_depends is not sufficient to ensure
loads following it are not speculatively loaded out of order
by the CPU, which can result in stale data being loaded, causing
potential system crashes.
Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Brian King [Fri, 17 Nov 2017 17:05:43 +0000 (11:05 -0600)]
ixgbe: Fix skb list corruption on Power systems
This patch fixes an issue seen on Power systems with ixgbe which results
in skb list corruption and an eventual kernel oops. The following is what
was observed:
CPU 1 CPU2
============================ ============================
1: ixgbe_xmit_frame_ring ixgbe_clean_tx_irq
2: first->skb = skb eop_desc = tx_buffer->next_to_watch
3: ixgbe_tx_map read_barrier_depends()
4: wmb check adapter written status bit
5: first->next_to_watch = tx_desc napi_consume_skb(tx_buffer->skb ..);
6: writel(i, tx_ring->tail);
The read_barrier_depends is insufficient to ensure that tx_buffer->skb does not
get loaded prior to tx_buffer->next_to_watch, which then results in loading
a stale skb pointer. This patch replaces the read_barrier_depends with
smp_rmb to ensure loads are ordered with respect to the load of
tx_buffer->next_to_watch.
Cc: stable <stable@vger.kernel.org> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Alan Brady [Tue, 14 Nov 2017 12:00:52 +0000 (07:00 -0500)]
i40e: restore promiscuous after reset
After a reset we rebuild the VSIs which is going to clobber any
promiscuous settings we had before reset. This makes it so that we
restore the promiscuous settings we had before reset.
Signed-off-by: Alan Brady <alan.brady@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Alan Brady [Tue, 14 Nov 2017 12:00:51 +0000 (07:00 -0500)]
i40evf: fix client notify of l2 params
The current method for notifying clients of l2 parameters is broken
because we fail to copy the new parameters to the client instance
struct, we need to do the notification before the client 'open' function
pointer gets called, and lastly we should set the l2 parameters when
first adding a client instance.
This patch first introduces the i40evf_client_get_params function to
prevent code duplication in the i40evf_client_add_instance and the
i40evf_notify_client_l2_params functions. We then fix the notify l2
params function to actually copy the parameters to client instance
struct and do the same in the *_add_instance' function. Lastly this
patch reorganizes the priority in which client tasks fire so that if the
flag for notifying l2 params is set, it will trigger before the open
because the client needs these new parameters as part of a client open
task.
Signed-off-by: Alan Brady <alan.brady@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Filip Sadowski [Tue, 14 Nov 2017 12:00:49 +0000 (07:00 -0500)]
i40e: Fix FLR reset timeout issue
This patch allows detection of upcoming core reset in case NIC gets
stuck while performing FLR reset. The i40e_pf_reset() function returns
I40E_ERR_NOT_READY when global reset was detected.
Signed-off-by: Filip Sadowski <filip.sadowski@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Amritha Nambiar [Thu, 9 Nov 2017 00:38:43 +0000 (16:38 -0800)]
i40e: Remove limit of 64 max queues per channel
It is safe to remove the upper limit of 64 queues on a channel
VSI. The upper bound is determined by the VSI's num_queue_pairs
and gets validated when the queue mapping info through mqprio
interface is subject to bound checking in the driver.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Zijie Pan [Tue, 7 Nov 2017 20:06:07 +0000 (12:06 -0800)]
i40e: fix the calculation of VFs mac addresses
num_mac should be increased only after the call to i40e_add_mac_filter().
Fixes: 5f527ba962e2 ("i40e: Limit the number of MAC and VLAN addresses that can be added for VFs") Signed-off-by: Zijie Pan <zijie.pan@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: Tushar Dave <tushar.n.dave@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Fri, 27 Oct 2017 15:06:55 +0000 (11:06 -0400)]
i40e: Fix for NUP NVM image downgrade failure
Since commit 96a39aed25e6 ("i40e: Acquire NVM lock before
reads on all devices") we've used the NVM lock
to synchronize NVM reads even on devices which don't strictly
need the lock.
Doing so can cause a regression on older firmware prior to 1.5,
especially when downgrading the firmware.
Fix this by only grabbing the lock if we're running on an X722
device (which requires the lock as it uses the AdminQ to read
the NVM), or if we're currently running 1.5 or newer firmware.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Yonghong Song [Tue, 21 Nov 2017 19:23:40 +0000 (11:23 -0800)]
bpf: change bpf_probe_write_user to bpf_trace_printk in test_verifier
There are four tests in test_verifier using bpf_probe_write_user
helper. These four tests will emit the following kernel messages
[ 12.974753] test_verifier[220] is installing a program with bpf_probe_write_user
helper that may corrupt user memory!
[ 12.979285] test_verifier[220] is installing a program with bpf_probe_write_user
helper that may corrupt user memory!
......
This may confuse certain users. This patch replaces bpf_probe_write_user
with bpf_trace_printk. The test_verifier already uses bpf_trace_printk
earlier in the test and a trace_printk warning message has been printed.
So this patch does not emit any more kernel messages.
Fixes: b6ff63911232 ("bpf: fix and add test cases for ARG_CONST_SIZE_OR_ZERO semantics change") Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
1) Fix a reference to a module parameter which was lost during the
GREv6 receive path rewrite, from Alexey Kodanev.
2) Fix deref before NULL check in ipheth, from Gustavo A. R. Silva.
3) RCU read lock imbalance in tun_build_skb(), from Xin Long.
4) Some stragglers from the mac80211 folks:
a) Timer conversions from Kees Cook
b) Fix some sequencing issue when cfg80211 is built statically,
from Johannes Berg
c) Memory leak in mac80211_hwsim, from Ben Hutchings.
5) Add new qmi_wwan device ID, from Sebastian Sjoholm.
6) Fix use after free in tipc, from Jon Maloy.
7) Missing kdoc in nfp driver, from Jakub Kicinski.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
nfp: flower: add missing kdoc
tipc: fix access of released memory
net: qmi_wwan: add Quectel BG96 2c7c:0296
mlxsw: spectrum: Do not try to create non-existing ports during unsplit
mac80211: properly free requested-but-not-started TX agg sessions
mac80211_hwsim: Fix memory leak in hwsim_new_radio_nl()
cfg80211: initialize regulatory keys/database later
mac80211: aggregation: Convert timers to use timer_setup()
nl80211: don't expose wdev->ssid for most interfaces
mac80211: Convert timers to use timer_setup()
net: vxge: Fix some indentation issues
net: ena: fix race condition between device reset and link up setup
r8169: use same RTL8111EVL green settings as in vendor driver
r8169: fix RTL8111EVL EEE and green settings
tun: fix rcu_read_lock imbalance in tun_build_skb
tcp: when scheduling TLP, time of RTO should account for current ACK
usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set
gre6: use log_ecn_error module parameter in ip6_tnl_rcv()
Linus Torvalds [Tue, 21 Nov 2017 15:40:48 +0000 (05:40 -1000)]
Merge tag 'for-linus-4.15-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs updates from Mike Marshall:
"Fix:
- stop setting atime on inode dirty (Martin Brandenburg)
Cleanups:
- remove initialization of i_version (Jeff Layton)
- use ARRAY_SIZE (Jérémy Lefaure)
- call op_release sooner when creating inodes (Mike MarshallMartin
Brandenburg)"
* tag 'for-linus-4.15-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: call op_release sooner when creating inodes
orangefs: stop setting atime on inode dirty
orangefs: use ARRAY_SIZE
orangefs: remove initialization of i_version
Linus Torvalds [Tue, 21 Nov 2017 15:38:32 +0000 (05:38 -1000)]
Merge tag 'ceph-for-4.15-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"We have a set of file locking improvements from Zheng, rbd rw/ro state
handling code cleanup from myself and some assorted CephFS fixes from
Jeff.
rbd now defaults to single-major=Y, lifting the limit of ~240 rbd
images per host for everyone"
* tag 'ceph-for-4.15-rc1' of git://github.com/ceph/ceph-client:
rbd: default to single-major device number scheme
libceph: don't WARN() if user tries to add invalid key
rbd: set discard_alignment to zero
ceph: silence sparse endianness warning in encode_caps_cb
ceph: remove the bump of i_version
ceph: present consistent fsid, regardless of arch endianness
ceph: clean up spinlocking and list handling around cleanup_cap_releases()
rbd: get rid of rbd_mapping::read_only
rbd: fix and simplify rbd_ioctl_set_ro()
ceph: remove unused and redundant variable dropping
ceph: mark expected switch fall-throughs
ceph: -EINVAL on decoding failure in ceph_mdsc_handle_fsmap()
ceph: disable cached readdir after dropping positive dentry
ceph: fix bool initialization/comparison
ceph: handle 'session get evicted while there are file locks'
ceph: optimize flock encoding during reconnect
ceph: make lock_to_ceph_filelock() static
ceph: keep auth cap when inode has flocks or posix locks
Linus Torvalds [Tue, 21 Nov 2017 15:28:13 +0000 (05:28 -1000)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- print the warning about dropped messages on consoles on a separate
line. It makes it more legible.
- one typo fix and small code clean up.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
added new line symbol after warning about dropped messages
printk: fix typo in printk_safe.c
printk: simplify no_printk()
David S. Miller [Tue, 21 Nov 2017 11:30:57 +0000 (20:30 +0900)]
Merge tag 'mac80211-for-davem-2017-11-20' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
A few things:
* straggler timer conversions from Kees
* memory leak fix in hwsim
* fix some fallout from regdb changes if wireless is built-in
* also free aggregation sessions in startup state when station
goes away, to avoid crashing the timer
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 21 Nov 2017 00:47:29 +0000 (16:47 -0800)]
nfp: flower: add missing kdoc
Commit 0115552eac14 ("nfp: remove false positive offloads
in flower vxlan") missed adding kdoc for a new parameter
of nfp_flower_add_offload().
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Maloy [Mon, 20 Nov 2017 20:43:03 +0000 (21:43 +0100)]
tipc: fix access of released memory
When the function tipc_group_filter_msg() finds that a member event
indicates that the member is leaving the group, it first deletes the
member instance, and then purges the message queue being handled
by the call. But the message queue is an aggregated field in the
just deleted item, leading the purge call to access freed memory.
We fix this by swapping the order of the two actions.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Quectel BG96 is an Qualcomm MDM9206 based IoT modem, supporting both
CAT-M and NB-IoT. Tested hardware is BG96 mounted on Quectel development
board (EVB). The USB id is added to qmi_wwan.c to allow QMI
communication with the BG96.
Signed-off-by: Sebastian Sjoholm <ssjoholm@mac.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 21 Nov 2017 07:50:24 +0000 (21:50 -1000)]
Merge tag 'fbdev-v4.15' of git://github.com/bzolnier/linux
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"There is nothing really major here (though removal of the dead igafb
driver stands out in diffstat).
Summary:
- convert timers to use timer_setup() (Kees Cook, Thierry Reding)
- fix panels support on iMX boards in mxsfb driver (Stefan Agner)
- fix timeout on EDID read in udlfb driver (Ladislav Michl)
- add missing modes to fix out of bounds access in controlfb driver
(Geert Uytterhoeven)
- update initialisation paths in sa1100fb driver to be more robust
(Russell King)
- fix error handling path of ->probe method in au1200fb driver
(Christophe JAILLET)
- fix handling of cases when either panel or crt is defined in
sm501fb driver (Sudip Mukherjee, Colin Ian King)
- add ability to the Goldfish FB driver to be recognized by OS via DT
(Aleksandar Markovic)
- structures constifications (Bhumika Goyal)
- misc fixes (Allen Pais, Gustavo A. R. Silva, Dan Carpenter)
- misc cleanups (Colin Ian King, Himanshu Jha, Markus Elfring)
- remove dead igafb driver"
* tag 'fbdev-v4.15' of git://github.com/bzolnier/linux: (42 commits)
OMAPFB: prevent buffer underflow in omapfb_parse_vram_param()
video: fbdev: sm501fb: fix potential null pointer dereference on fbi
fbcon: Initialize ops->info early
video: fbdev: Convert timers to use timer_setup()
video: fbdev: pxa3xx_gcu: Convert timers to use timer_setup()
fbdev: controlfb: Add missing modes to fix out of bounds access
video: fbdev: sis_main: mark expected switch fall-throughs
video: fbdev: cirrusfb: mark expected switch fall-throughs
video: fbdev: aty: radeon_pm: mark expected switch fall-throughs
video: fbdev: sm501fb: mark expected switch fall-through in sm501fb_blank_crt
video: fbdev: intelfb: remove redundant variables
video/fbdev/dnfb: Use common error handling code in dnfb_probe()
sm501fb: suspend and resume fb if it exists
sm501fb: unregister framebuffer only if registered
sm501fb: deallocate colormap only if allocated
video: goldfishfb: Add support for device tree bindings
Documentation: Add device tree binding for Goldfish FB driver
video: udlfb: Fix read EDID timeout
video: fbdev: remove dead igafb driver
video: fbdev: mxsfb: fix pixelclock polarity
...
Daniel Borkmann [Mon, 20 Nov 2017 23:37:36 +0000 (00:37 +0100)]
Merge branch 'bpf-offload-fixes'
Jakub Kicinski says:
====================
This series addresses some late comments and moves checking if program
has been loaded for the correct device to the drivers. There are also
some problems with net namespaces which I didn't take into consideration.
On the kernel side we will now simply ignore namespace moves. Since the
user space API is not reporting any namespace identification we have to
remove the ifindex until a correct way of reporting is agreed upon.
Jakub Kicinski [Mon, 20 Nov 2017 23:21:59 +0000 (15:21 -0800)]
bpf: revert report offload info to user space
This reverts commit bd601b6ada11 ("bpf: report offload info to user
space"). The ifindex by itself is not sufficient, we should provide
information on which network namespace this ifindex belongs to.
After considering some options we concluded that it's best to just
remove this API for now, and rework it in -next.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Mon, 20 Nov 2017 23:21:57 +0000 (15:21 -0800)]
bpf: offload: ignore namespace moves
We are currently destroying the device offload state when device
moves to another net namespace. This doesn't break with current
NFP code, because offload state is not used on program removal,
but it's not correct behaviour.
Ignore the device unregister notifications on namespace move.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Mon, 20 Nov 2017 23:21:56 +0000 (15:21 -0800)]
bpf: turn bpf_prog_get_type() into a wrapper
bpf_prog_get_type() is identical to bpf_prog_get_type_dev(),
with false passed as attach_drv. Instead of keeping it as
an exported symbol turn it into static inline wrapper.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Mon, 20 Nov 2017 23:21:55 +0000 (15:21 -0800)]
net: xdp: don't allow device-bound programs in driver mode
Currently device-bound programs are not able to run on the host
to save resources (host JIT is not invoked). Don't allow XDP
programs to be attached without the HW_MODE flag. In theory
if program is already translated for device offload the driver
should choose to offload it instead of loading it in the driver.
However, offloading translated program may still fail resulting
in device-bound program being run on the host.
Prevent this by refusing to attach device bound programs if
XDP_FLAGS_HW_MODE is not set.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Mon, 20 Nov 2017 23:21:54 +0000 (15:21 -0800)]
bpf: offload: move offload device validation out to the drivers
With TC shared block changes we can't depend on correct netdev
pointer being available in cls_bpf. Move the device validation
to the driver. Core will only make sure that offloaded programs
are always attached in the driver (or in HW by the driver). We
trust that drivers which implement offload callbacks will perform
necessary checks.
Moving the checks to the driver is generally a useful thing,
in practice the check should be against a switchdev instance,
not a netdev, given that most ASICs will probably allow using
the same program on many ports.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Mon, 20 Nov 2017 23:21:53 +0000 (15:21 -0800)]
bpf: offload: rename the ifindex field
bpf_target_prog seems long and clunky, rename it to prog_ifindex.
We don't want to call this field just ifindex, because maps
may need a similar field in the future and bpf_attr members for
programs and maps are unnamed.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Mon, 20 Nov 2017 23:21:52 +0000 (15:21 -0800)]
bpf: offload: limit offload to cls_bpf and xdp programs only
We are currently only allowing attachment of device-bound
cls_bpf and XDP programs. Make this restriction explicit in
the BPF offload code. This way we can potentially reuse the
ifindex field in the future.
Since XDP and cls_bpf programs can only be loaded by admin,
we can drop the explicit capability check from offload code.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Jakub Kicinski [Mon, 20 Nov 2017 23:21:51 +0000 (15:21 -0800)]
bpf: offload: add comment warning developers about double destroy
Offload state may get destroyed either because the device for which
it was constructed is going away, or because the refcount of bpf
program itself has reached 0. In both of those cases we will call
__bpf_prog_offload_destroy() to unlink the offload from the device.
We may in fact call it twice, which works just fine, but we should
make clear this is intended and caution others trying to extend the
function.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Stephen Boyd [Fri, 17 Nov 2017 16:53:21 +0000 (08:53 -0800)]
of: Document exactly what of_find_node_by_name() puts
It isn't clear if this function of_node_put()s the 'from'
argument, or the node it searches. Clearly indicate which
variable is touched. Fold in some more fixes from Randy too
because we're in the area.
Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Rob Herring <robh@kernel.org>
Johan Hovold [Sat, 11 Nov 2017 17:05:32 +0000 (18:05 +0100)]
wcn36xx: fix iris child-node lookup
Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.
To make things worse, the parent mmio node was also prematurely freed.
Fixes: fd52bdae9ab0 ("wcn36xx: Disable 5GHz for wcn3620") Cc: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
ath10k: fix data rx for CCMP-256, GCMP and GCMP-256 in raw mode
Make sure 16-byte mic is removed from the rx data packet
tail when CCMP-256, GCMP and GCMP-256 ciphers are used
in raw decap mode. This fixed rx traffic failures in those
ciphers in raw mode. Split the helper returning crypto
tail length into two, one to get the ICV length and other
to get the mic lengh for the cipher to make it clean.
Fixes: 2ea9f12cefe4 ("ath10k: add new cipher suite support") Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
When deleting a station or otherwise tearing down all aggregation
sessions, make sure to delete requested but not yet started ones,
to avoid the following scenario:
* session is requested, added to tid_start_tx[]
* ieee80211_ba_session_work() runs, gets past BLOCK_BA check
* ieee80211_sta_tear_down_BA_sessions() runs, locks &sta->ampdu_mlme.mtx,
e.g. while deleting the station - deleting all active sessions
* ieee80211_ba_session_work() continues since tear down flushes it, and
calls ieee80211_tx_ba_session_handle_start() for the new session, arms
the timer for it
* station deletion continues to __cleanup_single_sta() and frees the
session struct, while the timer is armed
Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Ben Hutchings [Fri, 10 Nov 2017 18:48:50 +0000 (18:48 +0000)]
mac80211_hwsim: Fix memory leak in hwsim_new_radio_nl()
hwsim_new_radio_nl() now copies the name attribute in order to add a
null-terminator. mac80211_hwsim_new_radio() (indirectly) copies it
again into the net_device structure, so the first copy is not used or
freed later. Free the first copy before returning.
Fixes: ff4dd73dd2b4 ("mac80211_hwsim: check HWSIM_ATTR_RADIO_NAME length") Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Thu, 26 Oct 2017 09:24:27 +0000 (11:24 +0200)]
cfg80211: initialize regulatory keys/database later
When cfg80211 is built as a module, everything is fine, and we
can keep the code as is; in fact, we have to, because there can
only be a single module_init().
When cfg80211 is built-in, however, it needs to initialize
before drivers (device_initcall/module_init), and thus used to
be at subsys_initcall(). I'd moved it to fs_initcall() earlier,
where it can remain. However, this is still too early because at
that point the key infrastructure hasn't been initialized yet,
so X.509 certificates can't be parsed yet.
To work around this problem, load the regdb keys only later in
a late_initcall(), at which point the necessary infrastructure
has been initialized.
Fixes: 90a53e4432b1 ("cfg80211: implement regdb signature checking") Reported-by: Xiaolong Ye <xiaolong.ye@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Kees Cook [Tue, 17 Oct 2017 20:25:45 +0000 (13:25 -0700)]
mac80211: aggregation: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
This removes the tid mapping array and expands the tid structures to
add a pointer back to the station, along with the tid index itself.
Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org>
[switch tid variables to u8, the valid range is 0-15 at most,
initialize tid_tx->sta/tid properly] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Tue, 17 Oct 2017 19:56:01 +0000 (21:56 +0200)]
nl80211: don't expose wdev->ssid for most interfaces
For mesh, this is simply wrong - there's no SSID, only the
mesh ID, so don't expose it at all.
For (P2P) client, it's wrong, because it exposes an internal
value that's only used when certain APIs are used.
For AP, it's actually the only correct case, so leave that.
All other interface types shouldn't be setting this anyway,
so there it won't change anything.
Fixes: b84e7a05f619 ("nl80211: send the NL80211_ATTR_SSID in nl80211_send_iface()") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Kees Cook [Mon, 16 Oct 2017 23:35:49 +0000 (16:35 -0700)]
mac80211: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Kalle Valo [Mon, 20 Nov 2017 15:44:44 +0000 (17:44 +0200)]
Merge tag 'iwlwifi-for-kalle-2017-11-19' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
iwlwifi: first set of fixes for 4.15
* Support new FW API version of scan cmd (used in FW version 34);
* Add a bunch of PCI IDs and fix configuration structs for A000
devices;
* Fix the exported firmware name strings for 9000 and A000 devices;
Linus Torvalds [Mon, 20 Nov 2017 06:41:53 +0000 (20:41 -1000)]
Merge tag 'ntb-4.15' of git://github.com/jonmason/ntb
Pull ntb updates from Jon Mason:
"Support for the switchtec ntb and related changes. Also, a couple of
bug fixes"
[ The timing isn't great. I had asked people to send me pull requests
before my family vacation, and this code has not even been in
linux-next as far as I can tell. But Logan Gunthorpe pleaded for its
inclusion because the Switchtec driver has apparently been around for
a while, just never in linux-next - Linus ]
* tag 'ntb-4.15' of git://github.com/jonmason/ntb:
ntb: intel: remove b2b memory window workaround for Skylake NTB
NTB: make idt_89hpes_cfg const
NTB: switchtec_ntb: Update switchtec documentation with notes for NTB
NTB: switchtec_ntb: Add memory window support
NTB: switchtec_ntb: Implement scratchpad registers
NTB: switchtec_ntb: Implement doorbell registers
NTB: switchtec_ntb: Add link management
NTB: switchtec_ntb: Add skeleton NTB driver
NTB: switchtec_ntb: Initialize hardware for doorbells and messages
NTB: switchtec_ntb: Initialize hardware for memory windows
NTB: switchtec_ntb: Introduce initial NTB driver
NTB: Add check and comment for link up to mw_count() and mw_get_align()
NTB: Ensure ntb_mw_get_align() is only called when the link is up
NTB: switchtec: Add link event notifier callback
NTB: switchtec: Add NTB hardware register definitions
NTB: switchtec: Export class symbol for use in upper layer driver
NTB: switchtec: Move structure definitions into a common header
ntb: update maintainer list for Intel NTB driver
Netanel Belgazal [Sun, 19 Nov 2017 18:03:40 +0000 (18:03 +0000)]
net: ena: fix race condition between device reset and link up setup
In rare cases, ena driver would reset and re-start the device,
for example, in case of misbehaving application that causes
transmit timeout
The first step in the reset procedure is to stop the Tx traffic by
calling ena_carrier_off().
After the driver have just started the device reset procedure, device
happens to send an asynchronous notification (via AENQ) to the driver
than there was a link change (to link-up state).
This link change is mapped to a call to netif_carrier_on() which
re-activates the Tx queues, violating the assumption of no tx traffic
until device reset is completed, as the reset task might still be in
the process of queues initialization, leading to an access to
uninitialized memory.
Signed-off-by: Netanel Belgazal <netanel@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Roberto Sassu [Tue, 7 Nov 2017 10:37:07 +0000 (11:37 +0100)]
ima: do not update security.ima if appraisal status is not INTEGRITY_PASS
Commit b65a9cfc2c38 ("Untangling ima mess, part 2: deal with counters")
moved the call of ima_file_check() from may_open() to do_filp_open() at a
point where the file descriptor is already opened.
This breaks the assumption made by IMA that file descriptors being closed
belong to files whose access was granted by ima_file_check(). The
consequence is that security.ima and security.evm are updated with good
values, regardless of the current appraisal status.
For example, if a file does not have security.ima, IMA will create it after
opening the file for writing, even if access is denied. Access to the file
will be allowed afterwards.
Avoid this issue by checking the appraisal status before updating
security.ima.
Heiner Kallweit [Sun, 19 Nov 2017 10:09:58 +0000 (11:09 +0100)]
r8169: fix RTL8111EVL EEE and green settings
Name of functions rtl_w0w1_eri and rtl_w0w1_phy is somewhat misleading
regarding order of arguments. One could assume that w0w1 means
argument with bits to be reset comes before argument with bits to set.
However this is not the case.
So fix the order of arguments in several statements.
In addition fix EEE advertisement. The current code resets the bits
for 100BaseT and 1000BaseT EEE advertisement what is not what we want.
I have a little of a hard time to find a proper "Fixes" line as the
issue seems to have been there forever (at least it existed already
when the driver was moved to the current place in 2011).
The patch was tested on a Zotac Mini-PC with a RTL8111E-VL chip.
Before the patch EEE was disabled, now it's properly advertised and
works fine.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Sun, 19 Nov 2017 11:31:04 +0000 (19:31 +0800)]
tun: fix rcu_read_lock imbalance in tun_build_skb
rcu_read_lock in tun_build_skb is used to rcu_dereference tun->xdp_prog
safely, rcu_read_unlock should be done in every return path.
Now I could see one place missing it, where it returns NULL in switch-case
XDP_REDIRECT, another palce using rcu_read_lock wrongly, where it returns
NULL in if (xdp_xmit) chunk.
So fix both in this patch.
Fixes: 761876c857cb ("tap: XDP support") Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Neal Cardwell [Sat, 18 Nov 2017 02:06:14 +0000 (21:06 -0500)]
tcp: when scheduling TLP, time of RTO should account for current ACK
Fix the TLP scheduling logic so that when scheduling a TLP probe, we
ensure that the estimated time at which an RTO would fire accounts for
the fact that ACKs indicating forward progress should push back RTO
times.
After the following fix:
df92c8394e6e ("tcp: fix xmit timer to only be reset if data ACKed/SACKed")
we had an unintentional behavior change in the following kind of
scenario: suppose the RTT variance has been very low recently. Then
suppose we send out a flight of N packets and our RTT is 100ms:
t=0: send a flight of N packets
t=100ms: receive an ACK for N-1 packets
The response before df92c8394e6e that was:
-> schedule a TLP for now + RTO_interval
The response after df92c8394e6e is:
-> schedule a TLP for t=0 + RTO_interval
Since RTO_interval = srtt + RTT_variance, this means that we have
scheduled a TLP timer at a point in the future that only accounts for
RTT_variance. If the RTT_variance term is small, this means that the
timer fires soon.
Before df92c8394e6e this would not happen, because in that code, when
we receive an ACK for a prefix of flight, we did:
1) Near the top of tcp_ack(), switch from TLP timer to RTO
at write_queue_head->paket_tx_time + RTO_interval:
if (icsk->icsk_pending == ICSK_TIME_LOSS_PROBE)
tcp_rearm_rto(sk);
2) In tcp_clean_rtx_queue(), update the RTO to now + RTO_interval:
if (flag & FLAG_ACKED) {
tcp_rearm_rto(sk);
3) In tcp_ack() after tcp_fastretrans_alert() switch from RTO
to TLP at now + RTO_interval:
if (icsk->icsk_pending == ICSK_TIME_RETRANS)
tcp_schedule_loss_probe(sk);
In df92c8394e6e we removed that 3-phase dance, and instead directly
set the TLP timer once: we set the TLP timer in cases like this to
write_queue_head->packet_tx_time + RTO_interval. So if the RTT
variance is small, then this means that this is setting the TLP timer
to fire quite soon. This means if the ACK for the tail of the flight
takes longer than an RTT to arrive (often due to delayed ACKs), then
the TLP timer fires too quickly.
Fixes: df92c8394e6e ("tcp: fix xmit timer to only be reset if data ACKed/SACKed") Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set
_dev_ is being dereferenced before it is null checked, hence there
is a potential null pointer dereference.
Fix this by moving the pointer dereference after _dev_ has been null
checked.
Addresses-Coverity-ID: 1462020 Fixes: bb1b40c7cb86 ("usbnet: ipheth: prevent TX queue timeouts when device not ready") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexey Kodanev [Fri, 17 Nov 2017 16:16:17 +0000 (19:16 +0300)]
gre6: use log_ecn_error module parameter in ip6_tnl_rcv()
After commit 308edfdf1563 ("gre6: Cleanup GREv6 receive path, call
common GRE functions") it's not used anywhere in the module, but
previously was used in ip6gre_rcv().
Fixes: 308edfdf1563 ("gre6: Cleanup GREv6 receive path, call common GRE functions") Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:54 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Update switchtec documentation with notes for NTB
The switchtec_ntb driver has a couple requirements on the switchec's
hardware configuration so we add these notes to the documentation.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:53 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Add memory window support
The Switchtec hardware has two types of memory windows: LUTs and Direct.
The first area in each BAR is for LUT windows and the remaining area is
for the direct region. The total number of LUT entries is set by a
configuration setting in hardware and they all must be the same
size. (This is fixed by switchtec_ntb to be 64K.)
switchtec_ntb enables the LUTs only for the first BAR and enables the
highest power of two possible. Seeing the LUTs are at the beginning of
the BAR, the direct memory window's alignment is affected. Therefore,
the maximum direct memory window size can not be greater than the number
of LUTs times 64K. The direct window in other BARs will not have this
restriction as the LUTs will not be enabled there. LUTs will only be
exposed through the NTB API if the use_lut_mw parameter is set.
Seeing the Switchtec hardware, by default, configures BARs to be 4G a
module parameter is given to limit the size of the advertised memory
windows. Higher layers tend to allocate the maximum BAR size and this
has a tendency to fail when they try to allocate 4GB of contiguous
memory.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Seeing there is no dedicated hardware for this, we simply add
these as entries in the shared memory window. Thus, we could support
any number of them but 128 seems like enough, for now.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:51 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Implement doorbell registers
Pretty straightforward implementation of doorbell registers.
The shift and mask were setup in an earlier patch and this just hooks
up the appropriate portion of the IDB register as the local doorbells
and the opposite portion of ODB as the peer doorbells. The DB mask is
protected by a spinlock to avoid concurrent read-modify-write accesses.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:50 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Add link management
switchtec_ntb checks for a link by looking at the shared memory
window. If the magic number is correct and the other side indicates
their link is enabled then we take the link to be up.
Whenever we change our local link status we send a msg to the
other side to check whether it's up and change their status.
The current status is maintained in a flag so ntb_is_link_up
can return quickly.
We utilize Switchtec's link status notifier to also check link changes
when the switch notices a port changes state.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:49 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Add skeleton NTB driver
Add a skeleton NTB driver which will be filled out in subsequent patches.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:48 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Initialize hardware for doorbells and messages
Set up some hardware registers and creates interrupt service routines
for the doorbells and messages.
There are 64 doorbells in the switch that are shared between all
partitions. The upper 4 doorbells are also shared with the messages
and are therefore not used. Thus, this provides 28 doorbells for each
partition.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:47 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Initialize hardware for memory windows
Add the code to initialize the memory windows in the hardware.
This includes setting up the requester ID table, and figuring out
which BAR corresponds to which memory window. (Seeing the switch
can be configured with any number of BARs.)
Also, seeing the device doesn't have hardware for scratchpads or
determining the link status, we create a shared memory window that has
these features. A magic number with a version component will be used
to determine if the other side's driver is actually up.
The shared memory window also informs the other side of the
size and count of the local memory windows.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:46 +0000 (12:19 -0600)]
NTB: switchtec_ntb: Introduce initial NTB driver
Seeing the Switchtec NTB hardware shares the same endpoint as the
management endpoint we utilize the class_interface API to register
an NTB driver for every Switchtec device in the system that has the
NTB class code.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:44 +0000 (12:19 -0600)]
NTB: Ensure ntb_mw_get_align() is only called when the link is up
With Switchtec hardware it's impossible to get the alignment parameters
for a peer's memory window until the peer's driver has configured its
windows. Strictly speaking, the link doesn't have to be up for this,
but the link being up is the only way the client can tell that
the other side has been configured.
This patch converts ntb_transport and ntb_perf to use this function after
the link goes up. This simplifies these clients slightly because they
no longer have to store the alignment parameters. It also tweaks
ntb_tool so that peer_mw_trans will print zero if it is run before
the link goes up.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Acked-by: Allen Hubbe <Allen.Hubbe@dell.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:43 +0000 (12:19 -0600)]
NTB: switchtec: Add link event notifier callback
In order for the Switchtec NTB code to handle link change events we
create a notifier callback in the switchtec code which gets called
whenever an appropriate event interrupt occurs.
In order to preserve userspace's ability to follow these events,
we compare the event count with a stored copy from last time we
checked.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
There are two additional regions: ctrl and dbmsg. The first is
for generic NTB control and memory windows. The second is for doorbells
and message registers. This patch also adds a number of related
constants for using these registers.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Logan Gunthorpe [Thu, 3 Aug 2017 18:19:40 +0000 (12:19 -0600)]
NTB: switchtec: Move structure definitions into a common header
Create the switchtec.h header in include/linux with hardware defines
and the switchtec_dev structure. Both moved directly from switchtec.c.
This is a prep patch for creating an NTB driver for Switchtec.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Linus Torvalds [Sat, 18 Nov 2017 19:22:04 +0000 (11:22 -0800)]
Merge tag 'nfsd-4.15' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"Lots of good bugfixes, including:
- fix a number of races in the NFSv4+ state code
- fix some shutdown crashes in multiple-network-namespace cases
- relax our 4.1 session limits; if you've an artificially low limit
to the number of 4.1 clients that can mount simultaneously, try
upgrading"
* tag 'nfsd-4.15' of git://linux-nfs.org/~bfields/linux: (22 commits)
SUNRPC: Improve ordering of transport processing
nfsd: deal with revoked delegations appropriately
svcrdma: Enqueue after setting XPT_CLOSE in completion handlers
nfsd: use nfs->ns.inum as net ID
rpc: remove some BUG()s
svcrdma: Preserve CB send buffer across retransmits
nfds: avoid gettimeofday for nfssvc_boot time
fs, nfsd: convert nfs4_file.fi_ref from atomic_t to refcount_t
fs, nfsd: convert nfs4_cntl_odstate.co_odcount from atomic_t to refcount_t
fs, nfsd: convert nfs4_stid.sc_count from atomic_t to refcount_t
lockd: double unregister of inetaddr notifiers
nfsd4: catch some false session retries
nfsd4: fix cached replies to solo SEQUENCE compounds
sunrcp: make function _svc_create_xprt static
SUNRPC: Fix tracepoint storage issues with svc_recv and svc_rqst_status
nfsd: use ARRAY_SIZE
nfsd: give out fewer session slots as limit approaches
nfsd: increase DRC cache limit
nfsd: remove unnecessary nofilehandle checks
nfs_common: convert int to bool
...
projects / kernel.git / log