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drm/i915: Select CONFIG_SHMEM

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The driver requires shmfs as the backing filesystem to handle the buffer
objects, so ensure it is selected if the user chooses to build our
driver.

Fixes: Bug 14662 - Dell E5500 kernel panic with KMS
http://bugzilla.kernel.org/show_bug.cgi?id=14662

The revealing nature of the panic is the NULL function pointer
dereference in read_cache_page_async().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Mateusz Kaduk <mateusz.kaduk@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: stable@kernel.org
This commit is contained in:
Chris Wilson 2009-11-22 15:40:31 +00:00 committed by Eric Anholt
parent 8e9e0eea99
commit ca9ab10033
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/Kconfig
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@ -92,6 +92,7 @@ config DRM_I830
config DRM_I915
tristate "i915 driver"
depends on AGP_INTEL
select SHMEM
select DRM_KMS_HELPER
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA