Commit Graph

935158 Commits

Author SHA1 Message Date
Karsten Graul
b7eede7578 net/smc: fix work request handling
Wait for pending sends only when smc_switch_conns() found a link to move
the connections to. Do not wait during link freeing, this can lead to
permanent hang situations. And refuse to provide a new tx slot on an
unusable link.

Fixes: c6f02ebeea ("net/smc: switch connections to alternate link")
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 12:35:15 -07:00
Karsten Graul
6778a6bed0 net/smc: separate LLC wait queues for flow and messages
There might be races in scenarios where both SMC link groups are on the
same system. Prevent that by creating separate wait queues for LLC flows
and messages. Switch to non-interruptable versions of wait_event() and
wake_up() for the llc flow waiter to make sure the waiters get control
sequentially. Fine tune the llc_flow_lock to include the assignment of
the message. Write to system log when an unexpected message was
dropped. And remove an extra indirection and use the existing local
variable lgr in smc_llc_enqueue().

Fixes: 555da9af82 ("net/smc: add event-based llc_flow framework")
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 12:35:15 -07:00
Dmitry Bogdanov
a42e6aee7f net: atlantic: fix ip dst and ipv6 address filters
This patch fixes ip dst and ipv6 address filters.
There were 2 mistakes in the code, which led to the issue:
* invalid register was used for ipv4 dst address;
* incorrect write order of dwords for ipv6 addresses.

Fixes: 23e7a718a4 ("net: aquantia: add rx-flow filter definitions")
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 12:29:33 -07:00
Randy Dunlap
0bddd227f3 Documentation: update for gcc 4.9 requirement
Update Documentation for the gcc v4.9 upgrade requirement.

Fixes: 5429ef62bc ("compiler/gcc: Raise minimum GCC version for kernel builds to 4.8")
Fixes: 6ec4476ac8 ("Raise gcc version requirement to 4.9")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-08 12:28:44 -07:00
Linus Torvalds
63e1968a2c sound fixes for 5.8-rc5
A collection of small, mostly device-specific fixes.
 The significant one is the regression fix for USB-audio implicit
 feedback devices due to the incorrect frame size calculation, which
 landed in 5.8 and stable trees.  In addition, a few usual HD-audio
 and USB-audio quirks, Intel HDMI fixes, ASoC fsl and rt5682 fixes,
 as well as the fix in compress-offload partial drain operation.
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Merge tag 'sound-5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small, mostly device-specific fixes.

  The significant one is the regression fix for USB-audio implicit
  feedback devices due to the incorrect frame size calculation, which
  landed in 5.8 and stable trees.

  In addition, a few usual HD-audio and USB-audio quirks, Intel HDMI
  fixes, ASoC fsl and rt5682 fixes, as well as the fix in
  compress-offload partial drain operation"

* tag 'sound-5.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: compress: fix partial_drain completion state
  ALSA: usb-audio: Add implicit feedback quirk for RTX6001
  ALSA: usb-audio: add quirk for MacroSilicon MS2109
  ALSA: hda/realtek: Enable headset mic of Acer Veriton N4660G with ALC269VC
  ALSA: hda/realtek: Enable headset mic of Acer C20-820 with ALC269VC
  ALSA: hda/realtek - Enable audio jacks of Acer vCopperbox with ALC269VC
  ALSA: hda/realtek - Fix Lenovo Thinkpad X1 Carbon 7th quirk subdevice id
  ALSA: hda/hdmi: improve debug traces for stream lookups
  ALSA: hda/hdmi: fix failures at PCM open on Intel ICL and later
  ALSA: opl3: fix infoleak in opl3
  ALSA: usb-audio: Replace s/frame/packet/ where appropriate
  ALSA: usb-audio: Fix packet size calculation
  AsoC: amd: add missing snd- module prefix to the acp3x-rn driver kernel module
  ALSA: hda - let hs_mic be picked ahead of hp_mic
  ASoC: rt5682: fix the pop noise while OMTP type headset plugin
  ASoC: fsl_mqs: Fix unchecked return value for clk_prepare_enable
  ASoC: fsl_mqs: Don't check clock is NULL before calling clk API
2020-07-08 11:07:09 -07:00
Linus Torvalds
6ec4476ac8 Raise gcc version requirement to 4.9
I realize that we fairly recently raised it to 4.8, but the fact is, 4.9
is a much better minimum version to target.

We have a number of workarounds for actual bugs in pre-4.9 gcc versions
(including things like internal compiler errors on ARM), but we also
have some syntactic workarounds for lacking features.

In particular, raising the minimum to 4.9 means that we can now just
assume _Generic() exists, which is likely the much better replacement
for a lot of very convoluted built-time magic with conditionals on
sizeof and/or __builtin_choose_expr() with same_type() etc.

Using _Generic also means that you will need to have a very recent
version of 'sparse', but thats easy to build yourself, and much less of
a hassle than some old gcc version can be.

The latest (in a long string) of reasons for minimum compiler version
upgrades was commit 5435f73d5c ("efi/x86: Fix build with gcc 4").

Ard points out that RHEL 7 uses gcc-4.8, but the people who stay back on
old RHEL versions persumably also don't build their own kernels anyway.
And maybe they should cross-built or just have a little side affair with
a newer compiler?

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-08 10:48:35 -07:00
Alexander A. Klimov
5d75c04306 Replace HTTP links with HTTPS ones: ATMEL MACB ETHERNET DRIVER
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 10:35:09 -07:00
Florian Fainelli
93165ecbe1 net: dsa: loop: Print when registration is successful
We have a number of error conditions that can lead to the driver not
probing successfully, move the print when we are sure
dsa_register_switch() has suceeded. This avoids repeated prints in case
of probe deferral for instance.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 10:14:00 -07:00
Mikulas Patocka
6958c1c640 dm: use noio when sending kobject event
kobject_uevent may allocate memory and it may be called while there are dm
devices suspended. The allocation may recurse into a suspended device,
causing a deadlock. We must set the noio flag when sending a uevent.

The observed deadlock was reported here:
https://www.redhat.com/archives/dm-devel/2020-March/msg00025.html

Reported-by: Khazhismel Kumykov <khazhy@google.com>
Reported-by: Tahsin Erdogan <tahsin@google.com>
Reported-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2020-07-08 12:50:51 -04:00
Damien Le Moal
174364f6a8 dm zoned: Fix zone reclaim trigger
Only triggering reclaim based on the percentage of unmapped cache
zones can fail to detect cases where reclaim is needed, e.g. if the
target has only 2 or 3 cache zones and only one unmapped cache zone,
the percentage of free cache zones is higher than
DMZ_RECLAIM_LOW_UNMAP_ZONES (30%) and reclaim does not trigger.

This problem, combined with the fact that dmz_schedule_reclaim() is
called from dmz_handle_bio() without the map lock held, leads to a
race between zone allocation and dmz_should_reclaim() result.
Depending on the workload applied, this race can lead to the write
path waiting forever for a free zone without reclaim being triggered.

Fix this by moving dmz_schedule_reclaim() inside dmz_alloc_zone()
under the map lock. This results in checking the need for zone reclaim
whenever a new data or buffer zone needs to be allocated.

Also fix dmz_reclaim_percentage() to always return 0 if the number of
unmapped cache (or random) zones is less than or equal to 1.

Suggested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2020-07-08 12:21:53 -04:00
Wei Yongjun
ce34c9b461 dm zoned: fix unused but set variable warnings
Fix unused but set variable warnings:

drivers/md/dm-zoned-reclaim.c:504:42: warning:
 variable nr_rnd set but not used [-Wunused-but-set-variable]
  504 |  unsigned int p_unmap, nr_unmap_rnd = 0, nr_rnd = 0;
      |                                          ^~~~~~
drivers/md/dm-zoned-reclaim.c:504:24: warning:
 variable nr_unmap_rnd set but not used [-Wunused-but-set-variable]
  504 |  unsigned int p_unmap, nr_unmap_rnd = 0, nr_rnd = 0;
      |                        ^~~~~~~~~~~~

Fixes: f97809aec5 ("dm zoned: per-device reclaim")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2020-07-08 11:11:21 -04:00
Michal Suchanek
a466245803 dm writecache: reject asynchronous pmem devices
DM writecache does not handle asynchronous pmem. Reject it when
supplied as cache.

Link: https://lore.kernel.org/linux-nvdimm/87lfk5hahc.fsf@linux.ibm.com/
Fixes: 6e84200c0a ("virtio-pmem: Add virtio pmem driver")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org # 5.3+
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2020-07-08 11:06:57 -04:00
Christoph Hellwig
382761dc63 dm: use bio_uninit instead of bio_disassociate_blkg
bio_uninit is the proper API to clean up a BIO that has been allocated
on stack or inside a structure that doesn't come from the BIO allocator.
Switch dm to use that instead of bio_disassociate_blkg, which really is
an implementation detail.  Note that the bio_uninit calls are also moved
to the two callers of __send_empty_flush, so that they better pair with
the bio_init calls used to initialize them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2020-07-08 11:02:05 -04:00
Veerabhadrarao Badiganti
3ec2d5113e mmc: sdhci-msm: Override DLL_CONFIG only if the valid value is supplied
During DLL initialization, the DLL_CONFIG register value would be
updated with the value supplied from the device-tree.

Override this register only if a valid value is supplied.

Fixes: 03591160ca ("mmc: sdhci-msm: Read and use DLL Config property from device tree file")
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Link: https://lore.kernel.org/r/1594213888-2780-1-git-send-email-vbadigan@codeaurora.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2020-07-08 15:30:35 +02:00
Kamal Heib
04340645f6 RDMA/siw: Fix reporting vendor_part_id
Move the initialization of the vendor_part_id to be before calling
ib_register_device(), this is needed because the query_device() callback
is called from the context of ib_register_device() before initializing the
vendor_part_id, so the reported value is wrong.

Fixes: bdcf26bf9b ("rdma/siw: network and RDMA core interface")
Link: https://lore.kernel.org/r/20200707130931.444724-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-08 09:24:45 -03:00
Zenghui Yu
00debf8109 drm/hisilicon/hibmc: Move drm_fbdev_generic_setup() down to avoid the splat
The HiSilicon hibmc driver triggers a splat at boot time as below

[   14.137806] ------------[ cut here ]------------
[   14.142405] hibmc-drm 0000:0a:00.0: Device has not been registered.
[   14.148661] WARNING: CPU: 0 PID: 496 at drivers/gpu/drm/drm_fb_helper.c:2233 drm_fbdev_generic_setup+0x15c/0x1b8
[   14.158787] [...]
[   14.278307] Call trace:
[   14.280742]  drm_fbdev_generic_setup+0x15c/0x1b8
[   14.285337]  hibmc_pci_probe+0x354/0x418
[   14.289242]  local_pci_probe+0x44/0x98
[   14.292974]  work_for_cpu_fn+0x20/0x30
[   14.296708]  process_one_work+0x1c4/0x4e0
[   14.300698]  worker_thread+0x2c8/0x528
[   14.304431]  kthread+0x138/0x140
[   14.307646]  ret_from_fork+0x10/0x18
[   14.311205] ---[ end trace a2000ec2d838af4d ]---

This turned out to be due to the fbdev device hasn't been registered when
drm_fbdev_generic_setup() is invoked. Let's fix the splat by moving it down
after drm_dev_register() which will follow the "Display driver example"
documented by commit de99f0600a ("drm/drv: DOC: Add driver example
code").

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200706144713.1123-1-yuzenghui@huawei.com
2020-07-08 09:08:22 +00:00
Steve French
8668115cf2 smb3: fix unneeded error message on change notify
We should not be logging a warning repeatedly on change notify.

CC: Stable <stable@vger.kernel.org> # v5.6+
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2020-07-08 03:59:02 -05:00
Christoph Hellwig
775802c057 fs: remove __vfs_read
Fold it into the two callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:57 +02:00
Christoph Hellwig
6209dd9132 fs: implement kernel_read using __kernel_read
Consolidate the two in-kernel read helpers to make upcoming changes
easier.  The only difference are the missing call to rw_verify_area
in kernel_read, and an access_ok check that doesn't make sense for
kernel buffers to start with.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:57 +02:00
Christoph Hellwig
a1f9b1c043 integrity/ima: switch to using __kernel_read
__kernel_read has a bunch of additional sanity checks, and this moves
the set_fs out of non-core code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:57 +02:00
Christoph Hellwig
61a707c543 fs: add a __kernel_read helper
This is the counterpart to __kernel_write, and skip the rw_verify_area
call compared to kernel_read.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:56 +02:00
Christoph Hellwig
53ad86266b fs: remove __vfs_write
Fold it into the two callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:56 +02:00
Christoph Hellwig
81238b2cff fs: implement kernel_write using __kernel_write
Consolidate the two in-kernel write helpers to make upcoming changes
easier.  The only difference are the missing call to rw_verify_area
in kernel_write, and an access_ok check that doesn't make sense for
kernel buffers to start with.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:56 +02:00
Christoph Hellwig
a01ac27be4 fs: check FMODE_WRITE in __kernel_write
Add a WARN_ON_ONCE if the file isn't actually open for write.  This
matches the check done in vfs_write, but actually warn warns as a
kernel user calling write on a file not opened for writing is a pretty
obvious programming error.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:56 +02:00
Christoph Hellwig
9db9775224 fs: unexport __kernel_write
This is a very special interface that skips sb_writes protection, and not
used by modules anymore.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:56 +02:00
Christoph Hellwig
6955a76fbc bpfilter: switch to kernel_write
While pipes don't really need sb_writers projection, __kernel_write is an
interface better kept private, and the additional rw_verify_area does not
hurt here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-07-08 08:27:56 +02:00
Christoph Hellwig
13c164b1a1 autofs: switch to kernel_write
While pipes don't really need sb_writers projection, __kernel_write is an
interface better kept private, and the additional rw_verify_area does not
hurt here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Ian Kent <raven@themaw.net>
2020-07-08 08:27:56 +02:00
Christoph Hellwig
97c7990c4b cachefiles: switch to kernel_write
__kernel_write doesn't take a sb_writers references, which we need here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Howells <dhowells@redhat.com>
2020-07-08 08:27:56 +02:00
yangerkun
2e98c01846 cifs: remove the retry in cifs_poxis_lock_set
The caller of cifs_posix_lock_set will do retry(like
fcntl_setlk64->do_lock_file_wait) if we will wait for any file_lock.
So the retry in cifs_poxis_lock_set seems duplicated, remove it to
make a cleanup.

Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: NeilBrown <neilb@suse.de>
2020-07-07 23:51:16 -05:00
Ralph Campbell
ed710a6ed7 drm/nouveau/nouveau: fix page fault on device private memory
If system memory is migrated to device private memory and no GPU MMU
page table entry exists, the GPU will fault and call hmm_range_fault()
to get the PFN for the page. Since the .dev_private_owner pointer in
struct hmm_range is not set, hmm_range_fault returns an error which
results in the GPU program stopping with a fatal fault.
Fix this by setting .dev_private_owner appropriately.

Fixes: 08ddddda66 ("mm/hmm: check the device private page owner in hmm_range_fault()")
Cc: stable@vger.kernel.org
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-07-08 13:30:42 +10:00
Ralph Campbell
ad61f5f5e0 drm/nouveau/svm: fix migrate page regression
The patch to add zero page migration to GPU memory inadvertently included
part of a future change which broke normal page migration to GPU memory
by copying too much data and corrupting GPU memory.
Fix this by only copying one page instead of a byte count.

Fixes: 9d4296a7d4 ("drm/nouveau/nouveau/hmm: fix migrate zero page to GPU")
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-07-08 13:30:42 +10:00
Ben Skeggs
0156e76d38 drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout
Tegra TRM says worst-case reply time is 1216us, and this should fix some
spurious timeouts that have been popping up.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-07-08 13:30:41 +10:00
Ben Skeggs
72923e24f9 drm/nouveau/kms/nv50-: bail from nv50_audio_disable() early if audio not enabled
Prevents "snd_hda_codec_hdmi hdaudioC1D0: HDMI: pin nid 5 not registered"
that occur on some configurations.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-07-08 13:30:41 +10:00
Chris Wilson
5a383d443b drm/i915/gt: Pin the rings before marking active
On eviction, we acquire the vm->mutex and then wait on the vma->active.
Therefore when binding and pinning the vma, we must follow the same
sequence, lock/pin the vma then mark it active. Otherwise, we mark the
vma as active, then wait for the vm->mutex, and meanwhile the evictor
holding the mutex waits upon us to complete our activity.

Fixes: 8ccfc20a7d ("drm/i915/gt: Mark ring->vma as active while pinned")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v5.6+
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200706170138.8993-1-chris@chris-wilson.co.uk
(cherry picked from commit 8567774e87)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2020-07-07 18:00:15 -07:00
Steve French
4ef9b4f1a7 smb3: fix access denied on change notify request to some servers
read permission, not just read attributes permission, is required
on the directory.

See MS-SMB2 (protocol specification) section 3.3.5.19.

Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org> # v5.6+
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2020-07-07 18:24:39 -05:00
Chris Healy
8cb601f158 net: sfp: add error checking with sfp_irq_name
Add error checking with sfp_irq_name before use.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:51:08 -07:00
Shannon Nelson
086c18f245 ionic: centralize queue reset code
The queue reset pattern is used in a couple different places,
only slightly different from each other, and could cause
issues if one gets changed and the other didn't.  This puts
them together so that only one version is needed, yet each
can have slighty different effects by passing in a pointer
to a work function to do whatever configuration twiddling is
needed in the middle of the reset.

This specifically addresses issues seen where under loops
of changing ring size or queue count parameters we could
occasionally bump into the netdev watchdog.

v2: added more commit message commentary

Fixes: 4d03e00a21 ("ionic: Add initial ethtool support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:50:31 -07:00
Toke Høiland-Jørgensen
469aceddfa vlan: consolidate VLAN parsing code and limit max parsing depth
Toshiaki pointed out that we now have two very similar functions to extract
the L3 protocol number in the presence of VLAN tags. And Daniel pointed out
that the unbounded parsing loop makes it possible for maliciously crafted
packets to loop through potentially hundreds of tags.

Fix both of these issues by consolidating the two parsing functions and
limiting the VLAN tag parsing to a max depth of 8 tags. As part of this,
switch over __vlan_get_protocol() to use skb_header_pointer() instead of
pskb_may_pull(), to avoid the possible side effects of the latter and keep
the skb pointer 'const' through all the parsing functions.

v2:
- Use limit of 8 tags instead of 32 (matching XMIT_RECURSION_LIMIT)

Reported-by: Toshiaki Makita <toshiaki.makita1@gmail.com>
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Fixes: d7bf2ebebc ("sched: consistently handle layer3 header accesses in the presence of VLANs")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:48:38 -07:00
Gustavo A. R. Silva
964201de69 net/sched: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:47:46 -07:00
Alexander A. Klimov
535094a0c9 Replace HTTP links with HTTPS ones: X.25 network layer
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:44:44 -07:00
Alexander A. Klimov
1fd52137d3 Replace HTTP links with HTTPS ones: GRETH 10/100/1G Ethernet MAC device driver
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:44:27 -07:00
Alexander Lobakin
da3287111a net: qed: fix buffer overflow on ethtool -d
When generating debug dump, driver firstly collects all data in binary
form, and then performs per-feature formatting to human-readable if it
is supported.

For ethtool -d, this is roughly incorrect for two reasons. First of all,
drivers should always provide only original raw dumps to Ethtool without
any changes.
The second, and more critical, is that Ethtool's output buffer size is
strictly determined by ethtool_ops::get_regs_len(), and all data *must*
fit in it. The current version of driver always returns the size of raw
data, but the size of the formatted buffer exceeds it in most cases.
This leads to out-of-bound writes and memory corruption.

Address both issues by adding an option to return original, non-formatted
debug data, and using it for Ethtool case.

v2:
 - Expand commit message to make it more clear;
 - No functional changes.

Fixes: c965db4446 ("qed: Add support for debug data collection")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:42:31 -07:00
Colin Ian King
2291bde8c0 bnx2x: fix spelling mistake "occurd" -> "occurred"
There are spelling mistakes in various literal strings. Fix these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:41:54 -07:00
David S. Miller
417e19d12b Merge branch 'net-ethtool-Untangle-PHYLIB-dependency'
Florian Fainelli says:

====================
net: ethtool: Untangle PHYLIB dependency

This patch series untangles the ethtool netlink dependency with PHYLIB
which exists because the cable test feature calls directly into PHY
library functions. The approach taken here is to introduce
ethtool_phy_ops function pointers which can be dynamically registered
when PHYLIB loads.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:41:05 -07:00
Florian Fainelli
f3631ab08e net: ethtool: Remove PHYLIB direct dependency
Now that we have introduced ethtool_phy_ops and the PHY library
dynamically registers its operations with that function pointer, we can
remove the direct PHYLIB dependency in favor of using dynamic
operations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:41:05 -07:00
Florian Fainelli
55d8f053ce net: phy: Register ethtool PHY operations
Utilize ethtool_set_ethtool_phy_ops to register a suitable set of PHY
ethtool operations in a dynamic fashion such that ethtool will no longer
directy reference PHY library symbols.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:41:04 -07:00
Florian Fainelli
4895d7808e net: ethtool: Introduce ethtool_phy_ops
In order to decouple ethtool from its PHY library dependency, define an
ethtool_phy_ops singleton which can be overriden by the PHY library when
it loads with an appropriate set of function pointers.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:41:04 -07:00
Randy Dunlap
1a4d681634 Documentation: networking: fix ethtool-netlink table formats
Fix table formatting to eliminate warnings.

Documentation/networking/ethtool-netlink.rst:509: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:522: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:543: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:555: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:591: WARNING: Malformed table.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:39:29 -07:00
Linus Torvalds
dcde237b9b Second batch of perf tooling fixes for v5.8:
- Intel PT fixes for PEBS-via-PT with registers.
 
 - Fixes for Intel PT python based GUI.
 
 - Avoid duplicated sideband events with Intel PT in system wide tracing.
 
 - Remove needless 'dummy' event from TUI menu, used when synthesizing
   meta data events for pre-existing processes.
 
 - Fix corner case segfault when pressing enter in a screen without
   entries in the TUI for report/top.
 
 - Fixes for time stamp handling in libtraceevent.
 
 - Explicitly set utf-8 encoding in perf flamegraph.
 
 - Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy',
   silencing perf build warning.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 
 Test results:
 
 The first ones are container based builds of tools/perf with and without libelf
 support.  Where clang is available, it is also used to build perf with/without
 libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang
 when clang and its devel libraries are installed.
 
 The objtool and samples/bpf/ builds are disabled now that I'm switching from
 using the sources in a local volume to fetching them from a http server to
 build it inside the container, to make it easier to build in a container cluster.
 Those will come back later.
 
 Several are cross builds, the ones with -x-ARCH and the android one, and those
 may not have all the features built, due to lack of multi-arch devel packages,
 available and being used so far on just a few, like
 debian:experimental-x-{arm64,mipsel}.
 
 The 'perf test' one will perform a variety of tests exercising
 tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
 with a variety of command line event specifications to then intercept the
 sys_perf_event syscall to check that the perf_event_attr fields are set up as
 expected, among a variety of other unit tests.
 
 Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
 with a variety of feature sets, exercising the build with an incomplete set of
 features as well as with a complete one. It is planned to have it run on each
 of the containers mentioned above, using some container orchestration
 infrastructure. Get in contact if interested in helping having this in place.
 
 Some of the most recent, experimental distros are failing, fixes will be
 provided, but those gcc/clang versions are not yet in general use and some
 are related to linking with libllvm, not the default build.
 
   Mon 06 Jul 2020 10:07:28 AM -03
   # export PERF_TARBALL=http://192.168.124.1/perf/perf-5.8.0-rc3.tar.xz
   # dm
    1 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
    2 alpine:3.5                    : Ok   gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
    3 alpine:3.6                    : Ok   gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
    4 alpine:3.7                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
    5 alpine:3.8                    : Ok   gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
    6 alpine:3.9                    : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
    7 alpine:3.10                   : Ok   gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
    8 alpine:3.11                   : Ok   gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
    9 alpine:3.12                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
   10 alpine:edge                   : Ok   gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (git://git.alpinelinux.org/aports 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
   11 alt:p8                        : Ok   x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final)
   12 alt:p9                        : Ok   x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 7.0.1
   13 alt:sisyphus                  : Ok   x86_64-alt-linux-gcc (GCC) 9.2.1 20200123 (ALT Sisyphus 9.2.1-alt3), clang version 10.0.0
   14 amazonlinux:1                 : Ok   gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
   15 amazonlinux:2                 : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
   16 android-ndk:r12b-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   17 android-ndk:r15c-arm          : Ok   arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
   18 centos:5                      : Ok   gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
   19 centos:6                      : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
   20 centos:7                      : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39)
   21 centos:8                      : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 9.0.1 (Red Hat 9.0.1-2.module_el8.2.0+309+0c7b6b03)
   22 clearlinux:latest             : Ok   gcc (Clear Linux OS for Intel Architecture) 10.1.1 20200618 releases/gcc-10.1.0-218-g6e81b0cf4f, clang version 10.0.0
   23 debian:8                      : Ok   gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
   24 debian:9                      : Ok   gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final)
   25 debian:10                     : Ok   gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final)
   26 debian:experimental           : FAIL gcc (Debian 9.3.0-13) 9.3.0, clang version 9.0.1-12
 
   # grep "make ARCH" dm.log/debian\:experimental
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= -C /git/linux/tools/perf O=/tmp/build/perf
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBELF=1 -C /git/linux/tools/perf O=/tmp/build/perf
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBBPF=1 -C /git/linux/tools/perf O=/tmp/build/perf
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBELF=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBBPF=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= LIBCLANGLLVM=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   <SNIP>
   /usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_ignoringImpCasts0Matcher::matches(clang::Expr const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
   (.text._ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x43): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
   /usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_hasLoopVariable0Matcher::matches(clang::CXXForRangeStmt const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
   (.text._ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x48): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
   /usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_hasRangeInit0Matcher::matches(clang::CXXForRangeStmt const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
   (.text._ZNK5clang12ast_matchers8internal28matcher_hasRangeInit0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal28matcher_hasRangeInit0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x48): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
   /usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_hasArgumentOfType0Matcher::matches(clang::UnaryExprOrTypeTraitExpr const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const':
   (.text._ZNK5clang12ast_matchers8internal33matcher_hasArgumentOfType0Matcher7matchesERKNS_24UnaryExprOrTypeTraitExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal33matcher_hasArgumentOfType0Matcher7matchesERKNS_24UnaryExprOrTypeTraitExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x36): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const'
   <SNIP>
   #
 
   27 debian:experimental-x-arm64   : Ok   aarch64-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0
   28 debian:experimental-x-mips    : Ok   mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0
   29 debian:experimental-x-mips64  : Ok   mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0
   30 debian:experimental-x-mipsel  : Ok   mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1 20190909
   31 fedora:20                     : Ok   gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
   32 fedora:22                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final)
   33 fedora:23                     : Ok   gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final)
   34 fedora:24                     : Ok   gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final)
   35 fedora:24-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
   36 fedora:25                     : Ok   gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final)
   37 fedora:26                     : Ok   gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final)
   38 fedora:27                     : Ok   gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final)
   39 fedora:28                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final)
   40 fedora:29                     : Ok   gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29)
   41 fedora:30                     : Ok   gcc (GCC) 9.2.1 20190827 (Red Hat 9.2.1-1), clang version 8.0.0 (Fedora 8.0.0-3.fc30)
   42 fedora:30-x-ARC-glibc         : Ok   arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
   43 fedora:30-x-ARC-uClibc        : Ok   arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
   44 fedora:31                     : Ok   gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31)
   45 fedora:32                     : Ok   gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-1.fc32)
   46 fedora:rawhide                : FAIL gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-4.fc33)
 
     CC       /tmp/build/perf/util/mem2node.o
   util/scripting-engines/trace-event-python.c: In function 'python_start_script':
   util/scripting-engines/trace-event-python.c:1595:2: error: 'visibility' attribute ignored [-Werror=attributes]
    1595 |  PyMODINIT_FUNC (*initfunc)(void);
         |  ^~~~~~~~~~~~~~
     LD       /tmp/build/perf/util/intel-pt-decoder/perf-in.o
 
   47 gentoo-stage3-amd64:latest    : Ok   gcc (Gentoo 9.2.0-r2 p3) 9.2.0
   48 mageia:5                      : Ok   gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final)
   49 mageia:6                      : Ok   gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final)
   50 mageia:7                      : Ok   gcc (Mageia 8.3.1-0.20190524.1.mga7) 8.3.1 20190524, clang version 8.0.0 (Mageia 8.0.0-1.mga7)
   51:latestError: error creating container storage: the container name "cool_zhukovsky" is already in use by "bebca2836e01c65d0c08a2c93fd96fb4b22b1d5b7e5945c8c21cd313823cd5a3". You have to remove that container to be able to reuse that name.: that name is already in use
    22aro:latest                : Ok   , clang version 9.0.0 (tags/RELEASE_900/final)
   52 openmandriva:cooker           : Ok   gcc (GCC) 10.0.0 20200502 (OpenMandriva), clang version 10.0.1
   53 opensuse:15.0                 : Ok   gcc (SUSE Linux) 7.4.1 20190424 [gcc-7-branch revision 270538], clang version 5.0.1 (tags/RELEASE_501/final 312548)
   54 opensuse:15.1                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238)
   55 opensuse:15.2                 : Ok   gcc (SUSE Linux) 7.5.0, clang version 9.0.1
   56 opensuse:42.3                 : Ok   gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553)
   57 opensuse:tumbleweed           : Ok   gcc (SUSE Linux) 10.1.1 20200625 [revision c91e43e9363bd119a695d64505f96539fa451bf2], clang version 10.0.0
   58 oraclelinux:6                 : Ok   gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
   59 oraclelinux:7                 : Ok   gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.3)
   60 oraclelinux:8                 : Ok   gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d)
   61 ubuntu:12.04                  : Ok   gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0)
   62 ubuntu:14.04                  : Ok   gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4
   63 ubuntu:16.04                  : Ok   gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
   64 ubuntu:16.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   65 ubuntu:16.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   66 ubuntu:16.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   67 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   68 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   69 ubuntu:16.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
   70 ubuntu:18.04                  : Ok   gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
   71 ubuntu:18.04-x-arm            : Ok   arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   72 ubuntu:18.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
   73 ubuntu:18.04-x-m68k           : Ok   m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   74 ubuntu:18.04-x-powerpc        : Ok   powerpc-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
   75 ubuntu:18.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
   76 ubuntu:18.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   77 ubuntu:18.04-x-riscv64        : Ok   riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   78 ubuntu:18.04-x-s390           : Ok   s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   79 ubuntu:18.04-x-sh4            : Ok   sh4-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0
   80 ubuntu:18.04-x-sparc64        : Ok   sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
   81 ubuntu:18.10                  : Ok   gcc (Ubuntu 8.3.0-6ubuntu1~18.10.1) 8.3.0, clang version 7.0.0-3 (tags/RELEASE_700/final)
   82 ubuntu:19.04                  : Ok   gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0, clang version 8.0.0-3 (tags/RELEASE_800/final)
   83 ubuntu:19.04-x-alpha          : Ok   alpha-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
   84 ubuntu:19.04-x-arm64          : Ok   aarch64-linux-gnu-gcc (Ubuntu/Linaro 8.3.0-6ubuntu1) 8.3.0
   85 ubuntu:19.04-x-hppa           : Ok   hppa-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
   86 ubuntu:19.10                  : FAIL gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 9.0.0-2 (tags/RELEASE_900/final)
 
   [root@quaco ~]# grep "make ARCH" dm.log/ubuntu\:19.10
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= -C /git/linux/tools/perf O=/tmp/build/perf
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBELF=1 -C /git/linux/tools/perf O=/tmp/build/perf
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBBPF=1 -C /git/linux/tools/perf O=/tmp/build/perf
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBELF=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= NO_LIBBPF=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= LIBCLANGLLVM=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang
   <SNIP>
   /usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::BindableMatcher<clang::Stmt> clang::ast_matchers::internal::VariadicFunction<clang::ast_matchers::internal::BindableMatcher<clang::Stmt>, clang::ast_matchers::internal::Matcher<clang::Expr>, &(clang::ast_matchers::internal::BindableMatcher<clang::Stmt> clang::ast_matchers::internal::makeDynCastAllOfComposite<clang::Stmt, clang::Expr>(llvm::ArrayRef<clang::ast_matchers::internal::Matcher<clang::Expr> const*>))>::operator()<clang::ast_matchers::internal::VariadicOperatorMatcher<clang::ast_matchers::internal::ArgumentAdaptingMatcherFunc<clang::ast_matchers::internal::HasAncestorMatcher, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc>, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc> >::Adaptor<clang::TypeLoc>, clang::ast_matchers::internal::ArgumentAdaptingMatcherFunc<clang::ast_matchers::internal::HasAncestorMatcher, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc>, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc> >::Adaptor<clang::Stmt> > >(clang::ast_matchers::internal::Matcher<clang::Expr> const&, clang::ast_matchers::internal::VariadicOperatorMatcher<clang::ast_matchers::internal::ArgumentAdaptingMatcherFunc<clang::ast_matchers::internal::HasAncestorMatcher, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc>, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc> >::Adaptor<clang::TypeLoc>, clang::ast_matchers::internal::ArgumentAdaptingMatcherFunc<clang::ast_matchers::internal::HasAncestorMatcher, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc>, clang::ast_matchers::internal::TypeList<clang::Decl, clang::NestedNameSpecifierLoc, clang::Stmt, clang::TypeLoc> >::Adaptor<clang::Stmt> > const&) const':
   (.text._ZNK5clang12ast_matchers8internal16VariadicFunctionINS1_15BindableMatcherINS_4StmtEEENS1_7MatcherINS_4ExprEEEXadL_ZNS1_25makeDynCastAllOfCompositeIS4_S7_EENS3_IT_EEN4llvm8ArrayRefIPKNS6_IT0_EEEEEEEclIJNS1_23VariadicOperatorMatcherIJNS1_27ArgumentAdaptingMatcherFuncINS1_18HasAncestorMatcherENS1_8TypeListIJNS_4DeclENS_22NestedNameSpecifierLocES4_NS_7TypeLocEEEESS_E7AdaptorISR_EENSU_IS4_EEEEEEEES5_RKS8_DpRKT_[_ZNK5clang12ast_matchers8internal16VariadicFunctionINS1_15BindableMatcherINS_4StmtEEENS1_7MatcherINS_4ExprEEEXadL_ZNS1_25makeDynCastAllOfCompositeIS4_S7_EENS3_IT_EEN4llvm8ArrayRefIPKNS6_IT0_EEEEEEEclIJNS1_23VariadicOperatorMatcherIJNS1_27ArgumentAdaptingMatcherFuncINS1_18HasAncestorMatcherENS1_8TypeListIJNS_4DeclENS_22NestedNameSpecifierLocES4_NS_7TypeLocEEEESS_E7AdaptorISR_EENSU_IS4_EEEEEEEES5_RKS8_DpRKT_]+0x4e): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::dynCastTo(clang::ast_type_traits::ASTNodeKind) const'
   <SNIP>
 
   87 ubuntu:20.04                  : Ok   gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1
   #
 
   # uname -a
   Linux quaco 5.8.0-rc3+ #2 SMP Tue Jun 30 09:47:17 -03 2020 x86_64 x86_64 x86_64 GNU/Linux
   # git log --oneline -1
   bee9ca1c8a perf report TUI: Remove needless 'dummy' event from menu
   # perf version --build-options
   perf version 5.8.rc3.gbee9ca1c8a23
                    dwarf: [ on  ]  # HAVE_DWARF_SUPPORT
       dwarf_getlocations: [ on  ]  # HAVE_DWARF_GETLOCATIONS_SUPPORT
                    glibc: [ on  ]  # HAVE_GLIBC_SUPPORT
                     gtk2: [ on  ]  # HAVE_GTK2_SUPPORT
            syscall_table: [ on  ]  # HAVE_SYSCALL_TABLE_SUPPORT
                   libbfd: [ on  ]  # HAVE_LIBBFD_SUPPORT
                   libelf: [ on  ]  # HAVE_LIBELF_SUPPORT
                  libnuma: [ on  ]  # HAVE_LIBNUMA_SUPPORT
   numa_num_possible_cpus: [ on  ]  # HAVE_LIBNUMA_SUPPORT
                  libperl: [ on  ]  # HAVE_LIBPERL_SUPPORT
                libpython: [ on  ]  # HAVE_LIBPYTHON_SUPPORT
                 libslang: [ on  ]  # HAVE_SLANG_SUPPORT
                libcrypto: [ on  ]  # HAVE_LIBCRYPTO_SUPPORT
                libunwind: [ on  ]  # HAVE_LIBUNWIND_SUPPORT
       libdw-dwarf-unwind: [ on  ]  # HAVE_DWARF_SUPPORT
                     zlib: [ on  ]  # HAVE_ZLIB_SUPPORT
                     lzma: [ on  ]  # HAVE_LZMA_SUPPORT
                get_cpuid: [ on  ]  # HAVE_AUXTRACE_SUPPORT
                      bpf: [ on  ]  # HAVE_LIBBPF_SUPPORT
                      aio: [ on  ]  # HAVE_AIO_SUPPORT
                     zstd: [ on  ]  # HAVE_ZSTD_SUPPORT
   # perf test
    1: vmlinux symtab matches kallsyms                       : Ok
    2: Detect openat syscall event                           : Ok
    3: Detect openat syscall event on all cpus               : Ok
    4: Read samples using the mmap interface                 : Ok
    5: Test data source output                               : Ok
    6: Parse event definition strings                        : Ok
    7: Simple expression parser                              : Ok
    8: PERF_RECORD_* events & perf_sample fields             : Ok
    9: Parse perf pmu format                                 : Ok
   10: PMU events                                            :
   10.1: PMU event table sanity                              : Ok
   10.2: PMU event map aliases                               : Ok
   10.3: Parsing of PMU event table metrics                  : Skip (some metrics failed)
   11: DSO data read                                         : Ok
   12: DSO data cache                                        : Ok
   13: DSO data reopen                                       : Ok
   14: Roundtrip evsel->name                                 : Ok
   15: Parse sched tracepoints fields                        : Ok
   16: syscalls:sys_enter_openat event fields                : Ok
   17: Setup struct perf_event_attr                          : Ok
   18: Match and link multiple hists                         : Ok
   19: 'import perf' in python                               : Ok
   20: Breakpoint overflow signal handler                    : Ok
   21: Breakpoint overflow sampling                          : Ok
   22: Breakpoint accounting                                 : Ok
   23: Watchpoint                                            :
   23.1: Read Only Watchpoint                                : Skip
   23.2: Write Only Watchpoint                               : Ok
   23.3: Read / Write Watchpoint                             : Ok
   23.4: Modify Watchpoint                                   : Ok
   24: Number of exit events of a simple workload            : Ok
   25: Software clock events period values                   : Ok
   26: Object code reading                                   : FAILED!
 
 	see below
 
   27: Sample parsing                                        : Ok
   28: Use a dummy software event to keep tracking           : Ok
   29: Parse with no sample_id_all bit set                   : Ok
   30: Filter hist entries                                   : Ok
   31: Lookup mmap thread                                    : Ok
   32: Share thread maps                                     : Ok
   33: Sort output of hist entries                           : Ok
   34: Cumulate child hist entries                           : Ok
   35: Track with sched_switch                               : Ok
   36: Filter fds with revents mask in a fdarray             : Ok
   37: Add fd to a fdarray, making it autogrow               : Ok
   38: kmod_path__parse                                      : Ok
   39: Thread map                                            : Ok
   40: LLVM search and compile                               :
   40.1: Basic BPF llvm compile                              : Ok
   40.2: kbuild searching                                    : Ok
   40.3: Compile source for BPF prologue generation          : Ok
   40.4: Compile source for BPF relocation                   : Ok
   41: Session topology                                      : Ok
   42: BPF filter                                            :
   42.1: Basic BPF filtering                                 : Skip
   42.2: BPF pinning                                         : Skip
   42.3: BPF prologue generation                             : Skip
   42.4: BPF relocation checker                              : Skip
   43: Synthesize thread map                                 : Ok
   44: Remove thread map                                     : Ok
   45: Synthesize cpu map                                    : Ok
   46: Synthesize stat config                                : Ok
   47: Synthesize stat                                       : Ok
   48: Synthesize stat round                                 : Ok
   49: Synthesize attr update                                : Ok
   50: Event times                                           : Ok
   51: Read backward ring buffer                             : Ok
   52: Print cpu map                                         : Ok
   53: Merge cpu map                                         : Ok
   54: Probe SDT events                                      : Ok
   55: is_printable_array                                    : Ok
   56: Print bitmap                                          : Ok
   57: perf hooks                                            : Ok
   58: builtin clang support                                 : Skip (not compiled in)
   59: unit_number__scnprintf                                : Ok
   60: mem2node                                              : Ok
   61: time utils                                            : Ok
   62: Test jit_write_elf                                    : Ok
   63: Test libpfm4 support                                  : Skip (not compiled in)
   64: Test api io                                           : Ok
   65: maps__merge_in                                        : Ok
   66: Demangle Java                                         : Ok
   67: x86 rdpmc                                             : Ok
   68: Convert perf time to TSC                              : Ok
   69: DWARF unwind                                          : Ok
   70: x86 instruction decoder - new instructions            : Ok
   71: Intel PT packet decoder                               : Ok
   72: x86 bp modify                                         : Ok
   73: probe libc's inet_pton & backtrace it with ping       : Ok
   74: Use vfs_getname probe to get syscall args filenames   : Ok
   75: Add vfs_getname probe to get syscall args filenames   : Ok
   76: Check open filename arg using perf trace + vfs_getname: Ok
   77: Zstd perf.data compression/decompression              : Ok
 
 This started failing most of the time with recent kernels, being investigated:
 
   # perf test -v object |& tail
   On file address is: 0xc736ba
   Objdump command is: objdump -z -d --start-address=0xffffffff81a736ba --stop-address=0xffffffff81a7373a /lib/modules/5.8.0-rc3+/build/vmlinux
   Bytes read match those read by objdump
   Reading object code for memory address: 0xffffffffc028d010
   File is: /lib/modules/5.8.0-rc3+/kernel/arch/x86/crypto/crc32c-intel.ko
   On file address is: 0xffffffffc028d0a0
   dso__data_read_offset failed
   test child finished with -1
   ---- end ----
   Object code reading: FAILED!
   #
 
 Noticed so far only with crc32c-intel.ko, seems related to:
 
   02213cec64 ("perf maps: Mark module DSOs with kernel type")
 
 Investigation ongoing.
 
   $ git log --oneline -1 ; time make -C tools/perf build-test
   bee9ca1c8a (HEAD -> perf/urgent, quaco/perf/urgent) perf report TUI: Remove needless 'dummy' event from menu
   make: Entering directory '/home/acme/git/perf/tools/perf'
   - tarpkg: ./tests/perf-targz-src-pkg .
              make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
               make_clean_all_O: make clean all
                   make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
                  make_no_sdt_O: make NO_SDT=1
         make_no_libbpf_DEBUG_O: make NO_LIBBPF=1 DEBUG=1
                    make_tags_O: make tags
                make_no_slang_O: make NO_SLANG=1
                  make_perf_o_O: make perf.o
               make_no_libbpf_O: make NO_LIBBPF=1
                   make_debug_O: make DEBUG=1
            make_with_libpfm4_O: make LIBPFM4=1
                 make_no_newt_O: make NO_NEWT=1
             make_no_demangle_O: make NO_DEMANGLE=1
                 make_no_gtk2_O: make NO_GTK2=1
          make_install_prefix_O: make install prefix=/tmp/krava
            make_no_libbionic_O: make NO_LIBBIONIC=1
   make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
            make_no_libpython_O: make NO_LIBPYTHON=1
                  make_static_O: make LDFLAGS=-static NO_PERF_READ_VDSO32=1 NO_PERF_READ_VDSOX32=1 NO_JVMTI=1
              make_no_libnuma_O: make NO_LIBNUMA=1
            make_no_libcrypto_O: make NO_LIBCRYPTO=1
                    make_help_O: make help
             make_no_auxtrace_O: make NO_AUXTRACE=1
              make_util_map_o_O: make util/map.o
          make_with_clangllvm_O: make LIBCLANGLLVM=1
                     make_doc_O: make doc
                    make_pure_O: make
             make_no_libaudit_O: make NO_LIBAUDIT=1
            make_no_libunwind_O: make NO_LIBUNWIND=1
          make_no_syscall_tbl_O: make NO_SYSCALL_TABLE=1
        make_util_pmu_bison_o_O: make util/pmu-bison.o
              make_no_libperl_O: make NO_LIBPERL=1
                 make_minimal_O: make NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 NO_LIBCRYPTO=1 NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1 NO_LIBCAP=1 NO_SYSCALL_TABLE=1
            make_no_backtrace_O: make NO_BACKTRACE=1
             make_install_bin_O: make install-bin
                 make_install_O: make install
    make_install_prefix_slash_O: make install prefix=/tmp/krava/
         make_with_babeltrace_O: make LIBBABELTRACE=1
               make_no_libelf_O: make NO_LIBELF=1
   OK
   make: Leaving directory '/home/acme/git/perf/tools/perf'
   $
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Merge tag 'perf-tools-fixes-2020-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tooling fixes from Arnaldo Carvalho de Melo:

 - Intel PT fixes for PEBS-via-PT with registers

 - Fixes for Intel PT python based GUI

 - Avoid duplicated sideband events with Intel PT in system wide tracing

 - Remove needless 'dummy' event from TUI menu, used when synthesizing
   meta data events for pre-existing processes

 - Fix corner case segfault when pressing enter in a screen without
   entries in the TUI for report/top

 - Fixes for time stamp handling in libtraceevent

 - Explicitly set utf-8 encoding in perf flamegraph

 - Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy',
   silencing perf build warning

* tag 'perf-tools-fixes-2020-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf report TUI: Remove needless 'dummy' event from menu
  perf intel-pt: Fix PEBS sample for XMM registers
  perf intel-pt: Fix displaying PEBS-via-PT with registers
  perf intel-pt: Fix recording PEBS-via-PT with registers
  perf report TUI: Fix segmentation fault in perf_evsel__hists_browse()
  tools lib traceevent: Add proper KBUFFER_TYPE_TIME_STAMP handling
  tools lib traceevent: Add API to read time information from kbuffer
  perf scripts python: exported-sql-viewer.py: Fix time chart call tree
  perf scripts python: exported-sql-viewer.py: Fix zero id in call tree 'Find' result
  perf scripts python: exported-sql-viewer.py: Fix zero id in call graph 'Find' result
  perf scripts python: exported-sql-viewer.py: Fix unexpanded 'Find' result
  perf record: Fix duplicated sideband events with Intel PT system wide tracing
  perf scripts python: export-to-postgresql.py: Fix struct.pack() int argument
  tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
  perf flamegraph: Explicitly set utf-8 encoding
2020-07-07 15:38:53 -07:00
Linus Lüssing
5fc6266af7 bridge: mcast: Fix MLD2 Report IPv6 payload length check
Commit e57f61858b ("net: bridge: mcast: fix stale nsrcs pointer in
igmp3/mld2 report handling") introduced a bug in the IPv6 header payload
length check which would potentially lead to rejecting a valid MLD2 Report:

The check needs to take into account the 2 bytes for the "Number of
Sources" field in the "Multicast Address Record" before reading it.
And not the size of a pointer to this field.

Fixes: e57f61858b ("net: bridge: mcast: fix stale nsrcs pointer in igmp3/mld2 report handling")
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:37:57 -07:00