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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-05-09 21:45:43 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-01 15:12:59 +0800 |
| commit | 98cfca8e0d48cd792d830198a34617668b10ed2c (patch) | |
| tree | f809ce96bfb954c5295e6b50d221b950dda16521 /include/linux/udf_fs_i.h | |
| parent | d818cf47642e6379d61d9304fed3ca7c9d6786a8 (diff) | |
| download | kernel_samsung_espresso10-98cfca8e0d48cd792d830198a34617668b10ed2c.zip kernel_samsung_espresso10-98cfca8e0d48cd792d830198a34617668b10ed2c.tar.gz kernel_samsung_espresso10-98cfca8e0d48cd792d830198a34617668b10ed2c.tar.bz2 | |
drm/i915: Avoid a double-read of PCH_IIR during interrupt handling
commit 9adab8b5a7fde248504f484e197589f3e3c922e2 upstream.
Currently the code re-reads PCH_IIR during the hotplug interrupt
processing. Not only is this a wasted read, but introduces a potential
for handling a spurious interrupt as we then may not clear all the
interrupts processed (since the re-read IIR may contains more interrupts
asserted than we clear using the result of the original read).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/udf_fs_i.h')
0 files changed, 0 insertions, 0 deletions