This bugfix appears to have been ignored, so it missed 2.6.32.
I've tagged my 2.6.33 copy as needing a 2.6.32.x backport.
On Tue, 17 Nov 2009 14:08:52 -0800
a...@linux-foundation.org wrote:
> From: Andrew Morton <a...@linux-foundation.org>
>
> drivers/gpu/drm/i915/i915_dma.c: In function 'i915_driver_load':
> drivers/gpu/drm/i915/i915_dma.c:1114: warning: 'll_base' may be used
> uninitialized in this function
>
> Partly this is because gcc isn't smart enough. But `ll_base' does get used
> uninitialised in the DRM_DEBUG() call.
>
> Cc: Jesse Barnes <jbar...@virtuousgeek.org>
> Cc: Eric Anholt <e...@anholt.net>
> Cc: Dave Airlie <airl...@linux.ie>
> Signed-off-by: Andrew Morton <a...@linux-foundation.org>
> ---
>
> drivers/gpu/drm/i915/i915_dma.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff -puN
> drivers/gpu/drm/i915/i915_dma.c~drivers-gpu-drm-i915-i915_dmac-fix-unused-var
> drivers/gpu/drm/i915/i915_dma.c
> ---
> a/drivers/gpu/drm/i915/i915_dma.c~drivers-gpu-drm-i915-i915_dmac-fix-unused-var
> +++ a/drivers/gpu/drm/i915/i915_dma.c
> @@ -1111,7 +1111,8 @@ static void i915_setup_compression(struc
> {
> struct drm_i915_private *dev_priv = dev->dev_private;
> struct drm_mm_node *compressed_fb, *compressed_llb;
> - unsigned long cfb_base, ll_base;
> + unsigned long cfb_base;
> + unsigned long ll_base = 0;
>
> /* Leave 1M for line length buffer & misc. */
> compressed_fb = drm_mm_search_free(&dev_priv->vram, size, 4096, 0);
> _
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