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authorJiri Pirko <jiri@mellanox.com>2017-02-07 17:27:47 +0100
committerDavid S. Miller <davem@davemloft.net>2017-02-07 14:15:21 -0500
commit9bcdef3288f2f4d8b05d522128198fdcb3f07885 (patch)
treeb56561b808c5dd56cc576bcb2d302dc1338e5008 /net/dcb/Kconfig
parenta8cab863a75f2d353588d4c3c37dc37c77b96c83 (diff)
spectrum: acl_tcam: Fix catchall prio value
This fixes an issue reported by smatch: mlxsw_sp_acl_tcam_chunk_create() warn: impossible condition '(priority == (-1)) => (0-u32max == u64max)' Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Reported-by: Ido Schimmel <idosch@mellanox.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 22a677661f56 ("mlxsw: spectrum: Introduce ACL core with simple TCAM implementation") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dcb/Kconfig')
0 files changed, 0 insertions, 0 deletions
a3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/netlabel/Kconfig')