Commit aac440ff authored Aug 09, 2016 by Dave Gordon Committed by Daniel Vetter Aug 09, 2016

drm: avoid "possible bad bitmask?" warning



Recent versions of gcc say this:

include/drm/i915_drm.h:96:34: warning: result of ‘65535 << 20’
requires 37 bits to represent, but ‘int’ only has 32 bits
[-Wshift-overflow=]

Reported-by: David Binderman <linuxdev.baldrick@gmail.com>
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470764110-23855-1-git-send-email-david.s.gordon@intel.com

parent 1426f715

include/drm/i915_drm.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -93,6 +93,6 @@ extern bool i915_gpu_turbo_disable(void);
		#define I845_TSEG_SIZE_1M (3 << 1)

		#define INTEL_BSM 0x5c
		#define INTEL_BSM_MASK (0xFFFF << 20)
		#define INTEL_BSM_MASK (-(1u << 20))

		#endif /* _I915_DRM_H_ */