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707601 commits

Author SHA1 Message Date
Linus Torvalds
6d6218976d linux-kselftest-4.14-rc1-update
This update consists of:
 
 -- TAP13 framework API and converting tests to TAP13 continues. A few
    more tests are converted and kselftest common RUN_TESTS in lib.mk
    is enhanced to print TAP13 to cover test shell scripts that won't
    be able to use kselftest API.
 
 -- Several fixes to existing tests to not fail in unsupported cases.
    This has been an ongoing work based on the feedback from stable
    release kselftest users.
 
 -- A new watchdog test and much needed cleanups to the existing tests
    from Eugeniu Rosca.
 
 -- Changes to kselftest common lib.mk framework to make RUN_TESTS a
    function to be called from individual test make files to run stress
    and destructive sub-tests.
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Merge tag 'linux-kselftest-4.14-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - TAP13 framework API and converting tests to TAP13 continues. A few
   more tests are converted and kselftest common RUN_TESTS in lib.mk is
   enhanced to print TAP13 to cover test shell scripts that won't be
   able to use kselftest API.

 - Several fixes to existing tests to not fail in unsupported cases.
   This has been an ongoing work based on the feedback from stable
   release kselftest users.

 - A new watchdog test and much needed cleanups to the existing tests
   from Eugeniu Rosca.

 - Changes to kselftest common lib.mk framework to make RUN_TESTS a
   function to be called from individual test make files to run stress
   and destructive sub-tests.

* tag 'linux-kselftest-4.14-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (41 commits)
  selftests: Enhance kselftest_harness.h to print which assert failed
  selftests: lib.mk: change RUN_TESTS to print messages in TAP13 format
  selftests: change lib.mk RUN_TESTS to take test list as an argument
  selftests: lib.mk: suppress "cd" output from run_tests target
  selftests: kselftest framework: change skip exit code to 0
  selftests/timers: make loop consistent with array size
  selftests: timers: remove rtctest_setdate from run_destructive_tests
  selftests: timers: Fix run_destructive_tests target to handle skipped tests
  kselftests: timers: leap-a-day: Change default arguments to help test runs
  selftests: timers: drop support for !KTEST case
  rtc: rtctest: Improve support detection
  selftests/cpu-hotplug: Skip test when there is only one online cpu
  selftests/cpu-hotplug: exit with failure when test occured unexpected behaviors
  selftests: futex: convert test to use ksft TAP13 framework
  selftests: capabilities: convert error output to TAP13 ksft framework
  selftests: memfd: Align STACK_SIZE for ARM AArch64 system
  selftests: warn if failure is due to lack of executable bit
  selftests: kselftest framework: add error counter
  selftests: capabilities: convert the test to use TAP13 ksft framework
  selftests: capabilities: fix to run Non-root +ia, sgidroot => i test
  ...
2017-09-08 15:11:20 -07:00
Linus Torvalds
42c8e86c9c Nothing new in development for this release. These are mostly
fixes that were found during development of changes for the next merge
 window and fixes that were sent to me late in the last cycle.
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Merge tag 'trace-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "Nothing new in development for this release. These are mostly fixes
  that were found during development of changes for the next merge
  window and fixes that were sent to me late in the last cycle"

* tag 'trace-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Apply trace_clock changes to instance max buffer
  tracing: Fix clear of RECORDED_TGID flag when disabling trace event
  tracing: Add barrier to trace_printk() buffer nesting modification
  ftrace: Fix memleak when unregistering dynamic ops when tracing disabled
  ftrace: Fix selftest goto location on error
  ftrace: Zero out ftrace hashes when a module is removed
  tracing: Only have rmmod clear buffers that its events were active in
  ftrace: Fix debug preempt config name in stack_tracer_{en,dis}able
2017-09-08 15:08:14 -07:00
Linus Torvalds
3aea311c1b genksyms: fix gperf removal conversion
I had stupidly missed one special use of 'is_reserved_word()' when I
converted the code to avoid gperf.

I had changed that function to return the token ID directly rather than
a pointer to the token descriptor structure, but that meant that the
test for "is this a reserved word" changed from checking the return
value against NULL, to checking that it wasn't negative.

And while I had converted the main token parser over, I missed the
special case of the typeof phrase handling.  And since our dependency
chain for genksyms does not include the genksyms program itself
changing, my kernel rebuild didn't show the problem.

Fixes: bb3290d916 ("Remove gperf usage from toolchain")
Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-08 14:32:34 -07:00
David S. Miller
1080746110 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter/IPVS fixes for net

The following patchset contains Netfilter/IPVS fixes for your net tree,
they are:

1) Fix SCTP connection setup when IPVS module is loaded and any scheduler
   is registered, from Xin Long.

2) Don't create a SCTP connection from SCTP ABORT packets, also from
   Xin Long.

3) WARN_ON() and drop packet, instead of BUG_ON() races when calling
   nf_nat_setup_info(). This is specifically a longstanding problem
   when br_netfilter with conntrack support is in place, patch from
   Florian Westphal.

4) Avoid softlock splats via iptables-restore, also from Florian.

5) Revert NAT hashtable conversion to rhashtable, semantics of rhlist
   are different from our simple NAT hashtable, this has been causing
   problems in the recent Linux kernel releases. From Florian.

6) Add per-bucket spinlock for NAT hashtable, so at least we restore
   one of the benefits we got from the previous rhashtable conversion.

7) Fix incorrect hashtable size in memory allocation in xt_hashlimit,
   from Zhizhou Tian.

8) Fix build/link problems with hashlimit and 32-bit arches, to address
   recent fallout from a new hashlimit mode, from Vishwanath Pai.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-08 11:35:55 -07:00
Linus Torvalds
015a9e66b9 RDMA/netlink: clean up message validity array initializer
The fix in the parent made me look at that function, and react to how
illogical and illegible the array initializer was.

Use named array indexes to make it clearer what is going on, and make
the initializer not depend silently on the exact index numbers.

[ The initializer now also shows an odd inconsistency in the naming:
  note the IWCM vs IWPM..   - Linus ]

Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Doug Ledford <dledford@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-08 10:17:20 -07:00
David S. Miller
91aac5637f wireless-drivers fixes for 4.14
Few fixes to regressions introduced in the last one or two releases.
 The iwlwifi fix is for a regression reported by Linus.
 
 rtlwifi
 
 * fix two antenna selection related bugs
 
 iwlwifi
 
 * fix regression with older firmwares
 
 brcmfmac
 
 * workaround firmware crash for bcm4345
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Merge tag 'wireless-drivers-for-davem-2017-09-08' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.14

Few fixes to regressions introduced in the last one or two releases.
The iwlwifi fix is for a regression reported by Linus.

rtlwifi

* fix two antenna selection related bugs

iwlwifi

* fix regression with older firmwares

brcmfmac

* workaround firmware crash for bcm4345
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-08 10:09:57 -07:00
Marcelo Ricardo Leitner
7906b00f5c sctp: fix missing wake ups in some situations
Commit fb586f2530 ("sctp: delay calls to sk_data_ready() as much as
possible") minimized the number of wake ups that are triggered in case
the association receives a packet with multiple data chunks on it and/or
when io_events are enabled and then commit 0970f5b366 ("sctp: signal
sk_data_ready earlier on data chunks reception") moved the wake up to as
soon as possible. It thus relies on the state machine running later to
clean the flag that the event was already generated.

The issue is that there are 2 call paths that calls
sctp_ulpq_tail_event() outside of the state machine, causing the flag to
linger and possibly omitting a needed wake up in the sequence.

One of the call paths is when enabling SCTP_SENDER_DRY_EVENTS via
setsockopt(SCTP_EVENTS), as noticed by Harald Welte. The other is when
partial reliability triggers removal of chunks from the send queue when
the application calls sendmsg().

This commit fixes it by not setting the flag in case the socket is not
owned by the user, as it won't be cleaned later. This works for
user-initiated calls and also for rx path processing.

Fixes: fb586f2530 ("sctp: delay calls to sk_data_ready() as much as possible")
Reported-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-08 10:02:47 -07:00
Leon Romanovsky
8b2c7e7a3c RDAM/netlink: Fix out-of-bound access while checking message validity
The netlink message sent with type == 0, which doesn't have any client
behind it, caused to the overflow in max_num_ops array.

Fix it by declaring zero number of ops for the first client.

Fixes: c9901724a2 ("RDMA/netlink: Remove netlink clients infrastructure")
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-08 10:01:03 -07:00
Vishwanath Pai
90c4ae4e2c netfilter: xt_hashlimit: fix build error caused by 64bit division
64bit division causes build/link errors on 32bit architectures. It
prints out error messages like:

ERROR: "__aeabi_uldivmod" [net/netfilter/xt_hashlimit.ko] undefined!

The value of avg passed through by userspace in BYTE mode cannot exceed
U32_MAX. Which means 64bit division in user2rate_bytes is unnecessary.
To fix this I have changed the type of param 'user' to u32.

Since anything greater than U32_MAX is an invalid input we error out in
hashlimit_mt_check_common() when this is the case.

Changes in v2:
	Making return type as u32 would cause an overflow for small
	values of 'user' (for example 2, 3 etc). To avoid this I bumped up
	'r' to u64 again as well as the return type. This is OK since the
	variable that stores the result is u64. We still avoid 64bit
	division here since 'user' is u32.

Fixes: bea74641e3 ("netfilter: xt_hashlimit: add rate match mode")
Signed-off-by: Vishwanath Pai <vpai@akamai.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 18:55:53 +02:00
Zhizhou Tian
05d0eae7c1 netfilter: xt_hashlimit: alloc hashtable with right size
struct xt_byteslimit_htable used hlist_head, but memory allocation is
done through sizeof(struct list_head).

Signed-off-by: Zhizhou Tian <zhizhou.tian@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 18:55:53 +02:00
Florian Westphal
74585d4f84 netfilter: core: remove erroneous warn_on
kernel test robot reported:

WARNING: CPU: 0 PID: 1244 at net/netfilter/core.c:218 __nf_hook_entries_try_shrink+0x49/0xcd
[..]

After allowing batching in nf_unregister_net_hooks its possible that an earlier
call to __nf_hook_entries_try_shrink already compacted the list.
If this happens we don't need to do anything.

Fixes: d3ad2c17b4 ("netfilter: core: batch nf_unregister_net_hooks synchronize_net calls")
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Aaron Conole <aconole@bytheb.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 18:55:52 +02:00
Florian Westphal
8073e960a0 netfilter: nat: use keyed locks
no need to serialize on a single lock, we can partition the table and
add/delete in parallel to different slots.
This restores one of the advantages that got lost with the rhlist
revert.

Cc: Ivan Babrou <ibobrik@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 18:55:52 +02:00
Florian Westphal
e1bf168774 netfilter: nat: Revert "netfilter: nat: convert nat bysrc hash to rhashtable"
This reverts commit 870190a9ec.

It was not a good idea. The custom hash table was a much better
fit for this purpose.

A fast lookup is not essential, in fact for most cases there is no lookup
at all because original tuple is not taken and can be used as-is.
What needs to be fast is insertion and deletion.

rhlist removal however requires a rhlist walk.
We can have thousands of entries in such a list if source port/addresses
are reused for multiple flows, if this happens removal requests are so
expensive that deletions of a few thousand flows can take several
seconds(!).

The advantages that we got from rhashtable are:
1) table auto-sizing
2) multiple locks

1) would be nice to have, but it is not essential as we have at
most one lookup per new flow, so even a million flows in the bysource
table are not a problem compared to current deletion cost.
2) is easy to add to custom hash table.

I tried to add hlist_node to rhlist to speed up rhltable_remove but this
isn't doable without changing semantics.  rhltable_remove_fast will
check that the to-be-deleted object is part of the table and that
requires a list walk that we want to avoid.

Furthermore, using hlist_node increases size of struct rhlist_head, which
in turn increases nf_conn size.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=196821
Reported-by: Ivan Babrou <ibobrik@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 18:55:50 +02:00
Florian Westphal
a5d7a71456 netfilter: xtables: add scheduling opportunity in get_counters
There are reports about spurious softlockups during iptables-restore, a
backtrace i saw points at get_counters -- it uses a sequence lock and also
has unbounded restart loop.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 18:55:27 +02:00
Florian Westphal
75c2631468 netfilter: nf_nat: don't bug when mapping already exists
It seems preferrable to limp along if we have a conflicting mapping,
its certainly better than a BUG().

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 18:55:26 +02:00
Sabrina Dubroca
ba1cc08d94 ipv6: fix memory leak with multiple tables during netns destruction
fib6_net_exit only frees the main and local tables. If another table was
created with fib6_alloc_table, we leak it when the netns is destroyed.

Fix this in the same way ip_fib_net_exit cleans up tables, by walking
through the whole hashtable of fib6_table's. We can get rid of the
special cases for local and main, since they're also part of the
hashtable.

Reproducer:
    ip netns add x
    ip -net x -6 rule add from 6003:1::/64 table 100
    ip netns del x

Reported-by: Jianlin Shi <jishi@redhat.com>
Fixes: 58f09b78b7 ("[NETNS][IPV6] ip6_fib - make it per network namespace")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-08 09:35:42 -07:00
SeongJae Park
6fad4e69e8 kokr/memory-barriers.txt: Apply atomic_t.txt change
This commit applies memory-barriers.txt part of upstream change, commit
706eeb3e9c ("Documentation/locking/atomic: Add documents for new
atomic_t APIs") to Korean translation.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-09-08 10:10:53 -06:00
SeongJae Park
53e3153816 kokr/doc: Update memory-barriers.txt for read-to-write dependencies
This commit applies upstream change, commit 66ce3a4dcb ("doc: Update
memory-barriers.txt for read-to-write dependencies") to Korean
translation.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-09-08 10:10:46 -06:00
Mauro Carvalho Chehab
54d6d73f50 docs-rst: don't require adjustbox anymore
Only the media PDF book was requiring adjustbox, in order to
scale big tables. That worked pretty good with Sphinx versions
1.4 and 1.5, but Spinx 1.6 changed the way tables are produced,
by introducing some weird macros before tabulary.
That causes adjustbox to fail. So, it can't be used anymore,
and its usage was removed from the media book.

So, let's remove it from conf.py and sphinx-pre-install.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-09-08 10:02:55 -06:00
Mauro Carvalho Chehab
9fdcd6afd8 docs-rst: conf.py: only setup notice box colors if Sphinx < 1.6
Sphinx 1.5 added a new way to change backward colors for note
boxes, but kept backward compatibility with 1.4. On Sphinx 1.6,
the old way stopped working, in favor of a new less hackish
way.

Unfortunately, this is currently too buggy to be used, and
the old way doesn't work anymore. So, we have no option but
to stick with boring notice boxes.

One example of such bug is the notice that it is inside
struct v4l2_plane, at the "bytesused" field.

At least, add a notice about how to use, as maybe some day
the bug will vanish.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-09-08 10:02:44 -06:00
Mauro Carvalho Chehab
c4b326e1a6 docs-rst: conf.py: remove lscape from LaTeX preamble
Only the media book used this extension in the past, but
it is not required anymore.

Cleanup patch only.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-09-08 10:02:39 -06:00
Colin Ian King
bfaa1ce809 drm/amdkfd: check for null dev to avoid a null pointer dereference
The call to kfd_device_by_id can potentially return null, so check that
dev is null and return with -EINVAL to avoid a null pointer dereference.

Detected by CoverityScan CID#1454629 ("Dereference null return value")

Fixes: 5d71dbc3a5 ("drm/amdkfd: Implement image tiling mode support v2")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-09-08 15:13:33 +01:00
Jan Glauber
b917c6d18c mmc: cavium: Fix use-after-free in of_platform_device_destroy
KASAN reported the following:

[   19.338655] ==================================================================
[   19.345946] BUG: KASAN: use-after-free in of_platform_device_destroy+0x88/0x100
[   19.345966] Read of size 8 at addr fffffe01aa6f1468 by task systemd-udevd/264

[   19.345983] CPU: 1 PID: 264 Comm: systemd-udevd Not tainted 4.13.0-jang+ #737
[   19.345989] Hardware name: Cavium ThunderX CN81XX board (DT)
[   19.345995] Call trace:
[   19.346013] [<fffffc800808b1b0>] dump_backtrace+0x0/0x368
[   19.346026] [<fffffc800808b6bc>] show_stack+0x24/0x30
[   19.346040] [<fffffc8008cbb944>] dump_stack+0xa4/0xc8
[   19.346057] [<fffffc80082c2870>] print_address_description+0x68/0x258
[   19.346070] [<fffffc80082c2d70>] kasan_report+0x238/0x2f8
[   19.346082] [<fffffc80082c14a8>] __asan_load8+0x88/0xb8
[   19.346098] [<fffffc8008aacee0>] of_platform_device_destroy+0x88/0x100
[   19.346131] [<fffffc8000e02fa4>] thunder_mmc_probe+0x314/0x550 [thunderx_mmc]
[   19.346147] [<fffffc800879d560>] pci_device_probe+0x158/0x1f8
[   19.346162] [<fffffc800886e53c>] driver_probe_device+0x394/0x5f8
[   19.346174] [<fffffc800886e8f4>] __driver_attach+0x154/0x158
[   19.346185] [<fffffc800886b12c>] bus_for_each_dev+0xdc/0x140
[   19.346196] [<fffffc800886d9f8>] driver_attach+0x38/0x48
[   19.346207] [<fffffc800886d148>] bus_add_driver+0x290/0x3c8
[   19.346219] [<fffffc800886fc5c>] driver_register+0xbc/0x1a0
[   19.346232] [<fffffc800879b78c>] __pci_register_driver+0xc4/0xd8
[   19.346260] [<fffffc8000e80024>] thunder_mmc_driver_init+0x24/0x10000 [thunderx_mmc]
[   19.346273] [<fffffc8008083a80>] do_one_initcall+0x98/0x1c0
[   19.346289] [<fffffc8008177b54>] do_init_module+0xe0/0x2cc
[   19.346303] [<fffffc8008175cf0>] load_module+0x3238/0x35c0
[   19.346318] [<fffffc8008176438>] SyS_finit_module+0x190/0x1a0
[   19.346329] [<fffffc80080834a0>] __sys_trace_return+0x0/0x4

This is caused by:

  platform_device_register()
   -> platform_device_unregister(to_platform_device(dev))
	freeing struct device
   -> of_node_clear_flag(dev->of_node, ...)
	writing to the freed device

The issue is solved by increasing the reference count before calling
of_platform_device_destroy() so freeing the device is postponed after
the call.

Fixes: 8fb83b1428 ("mmc: cavium: Fix probing race with regulator")
Signed-off-by: Jan Glauber <jglauber@cavium.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-09-08 15:38:22 +02:00
Wolfram Sang
b4f146f5fa mmc: host: fix typo after MMC_DEBUG move
MMC_DEBUG was moved and one letter got strangely capitalized.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-09-08 15:38:21 +02:00
Adrian Hunter
01f5bbd17a mmc: block: Fix incorrectly initialized requests
mmc_init_request() depends on card->bouncesz so it must be calculated
before blk_init_allocated_queue() starts allocating requests.

Reported-by: Seraphime Kirkovski <kirkseraph@gmail.com>
Fixes: 304419d8a7 ("mmc: core: Allocate per-request data using the..")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Seraphime Kirkovski <kirkseraph@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Pavel Machek <pavel@ucw.cz>
2017-09-08 15:37:51 +02:00
Stefan Haberland
e443343e50 s390/dasd: blk-mq conversion
Use new blk-mq interfaces. Use multiple queues and also use the block
layer complete helper that finish the IO on the CPU that initiated it.

Reviewed-by: Jan Hoeppner <hoeppner@linux.vnet.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-09-08 15:31:08 +02:00
Lyude
cac72b990d HID: rmi: Make sure the HID device is opened on resume
So it looks like that suspend/resume has actually always been broken on
hid-rmi. The fact it worked was a rather silly coincidence that was
relying on the HID device to already be opened upon resume. This means
that so long as anything was reading the /dev/input/eventX node for for
an RMI device, it would suspend and resume correctly. As well, if
nothing happened to be keeping the HID device away it would shut off,
then the RMI driver would get confused on resume when it stopped
responding and explode.

So, call hid_hw_open() in rmi_post_resume() so we make sure that the
device is alive before we try talking to it.

This fixes RMI device suspend/resume over HID.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=196851
[jkosina@suse.cz: removed useless hunk that was zero-initializing 'ret']
Signed-off-by: Lyude <lyude@redhat.com>
Cc: Andrew Duggan <aduggan@synaptics.com>
Cc: stable@vger.kernel.org
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-09-08 15:00:52 +02:00
Radim Krčmář
5f54c8b2d4 Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
This fix was intended for 4.13, but didn't get in because both
maintainers were on vacation.

Paul Mackerras:
 "It adds mutual exclusion between list_add_rcu and list_del_rcu calls
  on the kvm->arch.spapr_tce_tables list.  Without this, userspace could
  potentially trigger corruption of the list and cause a host crash or
  worse."
2017-09-08 14:40:43 +02:00
Xin Long
68913a018f netfilter: ipvs: do not create conn for ABORT packet in sctp_conn_schedule
There's no reason for ipvs to create a conn for an ABORT packet
even if sysctl_sloppy_sctp is set.

This patch is to accept it without creating a conn, just as ipvs
does for tcp's RST packet.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 13:40:23 +02:00
Xin Long
1cc4a01866 netfilter: ipvs: fix the issue that sctp_conn_schedule drops non-INIT packet
Commit 5e26b1b3ab ("ipvs: support scheduling inverse and icmp SCTP
packets") changed to check packet type early. It introduced a side
effect: if it's not a INIT packet, ports will be set as  NULL, and
the packet will be dropped later.

It caused that sctp couldn't create connection when ipvs module is
loaded and any scheduler is registered on server.

Li Shuang reproduced it by running the cmds on sctp server:
  # ipvsadm -A -t 1.1.1.1:80 -s rr
  # ipvsadm -D -t 1.1.1.1:80
then the server could't work any more.

This patch is to return 1 when it's not an INIT packet. It means ipvs
will accept it without creating a conn for it, just like what it does
for tcp.

Fixes: 5e26b1b3ab ("ipvs: support scheduling inverse and icmp SCTP packets")
Reported-by: Li Shuang <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-09-08 13:40:02 +02:00
Ian W MORRISON
f957dd3c8d brcmfmac: feature check for multi-scheduled scan fails on bcm4345 devices
The firmware feature check introduced for multi-scheduled scan is also
failing for bcm4345 devices resulting in a firmware crash.
The reason for this crash has not yet been root cause so this patch avoids
the feature check for those device as a short-term fix.

Fixes: 9fe929aaac ("brcmfmac: add firmware feature detection for gscan feature")
Cc: <stable@vger.kernel.org> # v4.13
Signed-off-by: Ian W MORRISON <ianwmorrison@gmail.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-08 12:25:24 +03:00
Sara Sharon
5f90472c00 iwlwifi: mvm: fix reorder buffer for 9000 devices
The condition to check if reorder buffer ran out of
space is faulty, as it takes into account only the
NSSN.
In case the head SN was too far behind the reorder
buffer should move forward, regardless of the NSSN
status.
This caused the driver to release packets out of order
in some scenarios.

Fixes: b915c10174 ("iwlwifi: mvm: add reorder buffer per queue")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:52:51 +03:00
Luca Coelho
d460f1fb83 iwlwifi: mvm: set status before calling iwl_mvm_send_cmd_status()
We always must set the status to what we consider success before
calling iwl_mvm_send_cmd_status() (also iwl_mvm_send_cmd_pdu_status()
which calls it).  Fix a few places where initialization is missing.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:50:30 +03:00
Luca Coelho
3f497de997 iwlwifi: mvm: initialize status in iwl_mvm_add_int_sta_common()
We always need to initialize the status argument to the success case
before calling iwl_mvm_send_cmd_status() or
iwl_mvm_send_cmd_pdu_status() (which calls the former) otherwise we
may get an uninitialized value back.  In this case, we use
ADD_STA_SUCCESS as success.

Fixes: 732d06e9d9 ("iwlwifi: mvm: add station before allocating a queue")
Reported by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:49:15 +03:00
Luca Coelho
61e7d91bcf iwlwifi: mvm: handle FIF_ALLMULTI when setting multicast addresses
We were ignoring the FIF_ALLMULTI flag when setting the multicast
addresses with MCAST_FILTER_CMD.  Check if this flag is set and enable
pass_all accordingly.  We also need to set the count to 0 if pass_all
is enable so we don't pass addresses to the firmware when not needed
(as doing so causes an assert).

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=196741

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:47:37 +03:00
Luca Coelho
97bce57bd7 iwlwifi: mvm: use IWL_HCMD_NOCOPY for MCAST_FILTER_CMD
The MCAST_FILTER_CMD can get quite large when we have many mcast
addresses to set (we support up to 255).  So the command should be
send as NOCOPY to prevent a warning caused by too-long commands:

WARNING: CPU: 0 PID: 9700 at /root/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/pcie/tx.c:1550 iwl_pcie_enqueue_hcmd+0x8c7/0xb40 [iwlwifi]
Command MCAST_FILTER_CMD (0x1d0) is too large (328 bytes)

This fixes: https://bugzilla.kernel.org/show_bug.cgi?id=196743

Cc: stable@vger.kernel.org
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:44:39 +03:00
Avraham Stern
8458e48ac7 iwlwifi: mvm: wake the correct mac80211 queue
iwl_mvm_start_mac_queues() takes a bitmap of the queues to wake.
When deferred tx is purged, set the bit of the hw_queue so
the correct queue will be waken up.

Fixes: 7e39a00d59 ("iwlwifi: mvm: start mac queues when deferred tx frames are purged")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:44:09 +03:00
Naftali Goldstein
bd800e41a3 iwlwifi: mvm: change state when queueing agg start work
Add a new state to enum iwl_mvm_agg_state, which is used between
queueing the work that starts tx aggregations and actually starting that
work (changing to state IWL_AGG_STARTING).
This solves a race where ieee80211_start_tx_ba_session is called a
second time, before the work queued by the first run has a chance to
change the agg_state. In this case the second call to
ieee80211_start_tx_ba_session returns an error, and the fallback is to
abort the ba session start.

Fixes: 482e48440a ("iwlwifi: mvm: change open and close criteria of a BA session")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:43:38 +03:00
Avraham Stern
0fe8bed6e3 iwlwifi: mvm: send all non-bufferable frames on the probe queue
AP interfaces now send all non-bufferable frames using the broadcast
station. Thus allow them to use the probe queue and don't warn about
it.

Fixes: eb045e6e03 ("iwlwifi: mvm: Avoid deferring non bufferable frames")
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:34:51 +03:00
David Spinadel
6110d9e5bd iwlwifi: mvm: Flush non STA TX queues
When starting wowlan mac80211 requests flush w/o vif
and we ignore this request. As a result some packets
stay stuck in the queue and it may end up with a queue
hang.

Allow the driver to flush queues even if station isn't
specified.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:28:34 +03:00
Matt Chen
59cd827f26 iwlwifi: mvm: fix wowlan resume failed to load INIT ucode
If we set disconnect on wowlan and run suspend/resume, will run
into:
...snipped
iwlwifi 0000:01:00.0: Failed to load firmware chunk!
iwlwifi 0000:01:00.0: Could not load the [0] uCode section
iwlwifi 0000:01:00.0: Failed to start INIT ucode: -110
iwlwifi 0000:01:00.0: Failed to run INIT ucode: -110
iwlwifi 0000:01:00.0: Failed to start RT ucode: -110

It is because we still keep IWL_MVM_STATUS_IN_HW_RESTART in
__iwl_mvm_resume.  When mac80211 starts the device as
__iwl_mvm_mac_start(), we will miss iwl_mvm_restart_cleanup(mvm).

Signed-off-by: Matt Chen <matt.chen@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-09-08 11:25:31 +03:00
Linus Torvalds
5969d1bb30 Merge branch 'gperf-removal'
Remove our use of 'gperf' for generating perfect hashes from some of our
build tools.

This removal was prompted by Masahiro Yamada sending out a patch that
removes all our pre-generated files, and when I tested it, I noticed
that the gperf version I have (3.1) apparently generates code that no
longer works with out code-base because the function interfaces
generated by gperf have changed.

We really don't care that much, and the gperf people changed their
interfaces in ways that makes it annoying to work with them.  Tools that
make it hard to use them should not be used, and the kernel is not at
all interested in some autoconf mess.  So remove the gperf dependency
entirely.

It turns out that if you ignore the pre-generated files, the use of
gperf apparently saved us a whopping fifteen lines of code.  It
obviously wasn't worth it, considering that the pre-generated files are
about 500 lines.

I sent this out as a patch about three weeks ago, and got absolutely
zero responses.  So let's see if anybody notices now that I merge it.
Because there might be serious bugs here, but it WorksForMe(tm).

* gperf-removal:
  Remove gperf usage from toolchain
2017-09-07 21:39:15 -07:00
Linus Torvalds
572c01ba19 SCSI misc on 20170907
This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas, megaraid_sas, zfcp and a host of minor updates.
 
 The major driver change here is the elimination of the block based
 cciss driver in favour of the SCSI based hpsa driver (which now drives
 all the legacy cases cciss used to be required for).  Plus a reset
 handler clean up and the redo of the SAS SMP handler to use bsg lib.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas,
  megaraid_sas, zfcp and a host of minor updates.

  The major driver change here is the elimination of the block based
  cciss driver in favour of the SCSI based hpsa driver (which now drives
  all the legacy cases cciss used to be required for). Plus a reset
  handler clean up and the redo of the SAS SMP handler to use bsg lib"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
  scsi: scsi-mq: Always unprepare before requeuing a request
  scsi: Show .retries and .jiffies_at_alloc in debugfs
  scsi: Improve requeuing behavior
  scsi: Call scsi_initialize_rq() for filesystem requests
  scsi: qla2xxx: Reset the logo flag, after target re-login.
  scsi: qla2xxx: Fix slow mem alloc behind lock
  scsi: qla2xxx: Clear fc4f_nvme flag
  scsi: qla2xxx: add missing includes for qla_isr
  scsi: qla2xxx: Fix an integer overflow in sysfs code
  scsi: aacraid: report -ENOMEM to upper layer from aac_convert_sgraw2()
  scsi: aacraid: get rid of one level of indentation
  scsi: aacraid: fix indentation errors
  scsi: storvsc: fix memory leak on ring buffer busy
  scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough
  scsi: smartpqi: remove the smp_handler stub
  scsi: hpsa: remove the smp_handler stub
  scsi: bsg-lib: pass the release callback through bsg_setup_queue
  scsi: Rework handling of scsi_device.vpd_pg8[03]
  scsi: Rework the code for caching Vital Product Data (VPD)
  scsi: rcu: Introduce rcu_swap_protected()
  ...
2017-09-07 21:11:05 -07:00
Linus Torvalds
cef5d0f952 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:

 - Do not allow use of freed init data and code even when boot consoles
   are forced to stay. Also check for the init memory more precisely.

 - Some code clean up by starting contributors.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
  printk: Clean up do_syslog() error handling
  printk/console: Enhance the check for consoles using init memory
  printk/console: Always disable boot consoles that use init memory before it is freed
  printk: Modify operators of printed_len and text_len
2017-09-07 21:00:52 -07:00
Yunlei He
27161f13e3 f2fs: avoid race in between read xattr & write xattr
Thread A:					Thread B:
-f2fs_getxattr
   -lookup_all_xattrs
      -xnid = F2FS_I(inode)->i_xattr_nid;
						-f2fs_setxattr
						    -__f2fs_setxattr
						        -write_all_xattrs
						            -truncate_xattr_node
							          ...  ...
						-write_checkpoint
								  ...  ...
						-alloc_nid   <- nid reuse
          -get_node_page
              -f2fs_bug_on  <- nid != node_footer->nid

It's need a rw_sem to avoid the race

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-09-07 20:57:20 -07:00
Jaegeuk Kim
13ba41e346 f2fs: make get_lock_data_page to handle encrypted inode
This patch refactors get_lock_data_page() to handle encryption case directly.
In order to do that, it introduces common f2fs_submit_page_read().

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-09-07 20:55:51 -07:00
Linus Torvalds
0fb02e718f audit/stable-4.14 PR 20170907
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Merge tag 'audit-pr-20170907' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "A small pull request for audit this time, only four patches and only
  two with any real code changes.

  Those two changes are the removal of a pointless SELinux AVC
  initialization audit event and a fix to improve the audit timestamp
  overhead.

  The other two patches are comment cleanup and administrative updates,
  nothing very exciting.

  Everything passes our tests"

* tag 'audit-pr-20170907' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: update the function comments
  selinux: remove AVC init audit log message
  audit: update the audit info in MAINTAINERS
  audit: Reduce overhead using a coarse clock
2017-09-07 20:48:25 -07:00
Linus Torvalds
828f4257d1 This series has the ultimate goal of providing a sane stack rlimit when
running set*id processes. To do this, the bprm_secureexec LSM hook is
 collapsed into the bprm_set_creds hook so the secureexec-ness of an exec
 can be determined early enough to make decisions about rlimits and the
 resulting memory layouts. Other logic acting on the secureexec-ness of an
 exec is similarly consolidated. Capabilities needed some special handling,
 but the refactoring removed other special handling, so that was a wash.
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Merge tag 'secureexec-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull secureexec update from Kees Cook:
 "This series has the ultimate goal of providing a sane stack rlimit
  when running set*id processes.

  To do this, the bprm_secureexec LSM hook is collapsed into the
  bprm_set_creds hook so the secureexec-ness of an exec can be
  determined early enough to make decisions about rlimits and the
  resulting memory layouts. Other logic acting on the secureexec-ness of
  an exec is similarly consolidated. Capabilities needed some special
  handling, but the refactoring removed other special handling, so that
  was a wash"

* tag 'secureexec-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  exec: Consolidate pdeath_signal clearing
  exec: Use sane stack rlimit under secureexec
  exec: Consolidate dumpability logic
  smack: Remove redundant pdeath_signal clearing
  exec: Use secureexec for clearing pdeath_signal
  exec: Use secureexec for setting dumpability
  LSM: drop bprm_secureexec hook
  commoncap: Move cap_elevated calculation into bprm_set_creds
  commoncap: Refactor to remove bprm_secureexec hook
  smack: Refactor to remove bprm_secureexec hook
  selinux: Refactor to remove bprm_secureexec hook
  apparmor: Refactor to remove bprm_secureexec hook
  binfmt: Introduce secureexec flag
  exec: Correct comments about "point of no return"
  exec: Rename bprm->cred_prepared to called_set_creds
2017-09-07 20:35:29 -07:00
Linus Torvalds
44ccba3f7b - For the randstruct plugin, enable automatic randomization of structures
that are entirely function pointers (along with a couple designated
   initializer fixes).
 - For the structleak plugin, provide an option to perform zeroing
   initialization of all otherwise uninitialized stack variables that are
   passed by reference (Ard Biesheuvel).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
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Merge tag 'gcc-plugins-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull gcc plugins update from Kees Cook:
 "This finishes the porting work on randstruct, and introduces a new
  option to structleak, both noted below:

   - For the randstruct plugin, enable automatic randomization of
     structures that are entirely function pointers (along with a couple
     designated initializer fixes).

   - For the structleak plugin, provide an option to perform zeroing
     initialization of all otherwise uninitialized stack variables that
     are passed by reference (Ard Biesheuvel)"

* tag 'gcc-plugins-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: structleak: add option to init all vars used as byref args
  randstruct: Enable function pointer struct detection
  drivers/net/wan/z85230.c: Use designated initializers
  drm/amd/powerplay: rv: Use designated initializers
2017-09-07 20:30:19 -07:00
Zhang Rui
b32b5e14b4 Merge branches 'thermal-core', 'thermal-soc', 'thermal-intel' and 'const-thermal-zone-structure' into next 2017-09-08 11:20:04 +08:00