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    Subject[069/119] drm/i915: Select CONFIG_SHMEM
    2.6.31-stable review patch.  If anyone has any objections, please let us know.

    ------------------
    From: Chris Wilson <chris@chris-wilson.co.uk>

    commit ca9ab10033d190c1ede85fdf456307bdfdabf079 upstream.

    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>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    drivers/gpu/drm/Kconfig | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/gpu/drm/Kconfig
    +++ b/drivers/gpu/drm/Kconfig
    @@ -82,6 +82,7 @@ config DRM_I830
    config DRM_I915
    tristate "i915 driver"
    depends on AGP_INTEL
    + select SHMEM
    select FB_CFB_FILLRECT
    select FB_CFB_COPYAREA
    select FB_CFB_IMAGEBLIT



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