summaryrefslogtreecommitdiff
path: root/net/dccp/qpolicy.c
diff options
context:
space:
mode:
authorMarc Kleine-Budde <mkl@pengutronix.de>2015-09-01 09:00:13 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-02-06 15:13:44 +0100
commitb3cf53e988cedb11a407d65abafca836da78b7c9 (patch)
treed6dc8e05039b775cfdf198a2623ef4dc2f1202ca /net/dccp/qpolicy.c
parent9eb7aa891101a4a09114ff3191f9877ea35eae06 (diff)
can: flexcan: add support for timestamp based rx-offload
The flexcan IP core has 64 mailboxes. For now they are configured for RX as a hardware FIFO. This FIFO has a fixed depth of 6 CAN frames. In some high load scenarios it turns out thas this buffer is too small. In order to have a buffer larger than the 6 frames FIFO, this patch adds support for timestamp based offloading via the generic rx-offload infrastructure. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'net/dccp/qpolicy.c')
0 files changed, 0 insertions, 0 deletions
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 'drivers/usb/core/hcd-pci.c')