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drm/i915: Use offsetof() to calculate the offset of members in PVINFO page 

To get the offset of the members in PVINFO page, offsetof() looks much
better than the tricky approach in current code.

v7:

- Move "offsetof()" modification into a dedicated patch. (Joonas)

Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466078825-6662-3-git-send-email-zhi.a.wang@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Zhi Wang 2016-06-16 08:06:58 -04:00 committed by Chris Wilson
parent 87da603cae
commit b2a5d1e716
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_pvinfo.h
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@ -104,7 +104,7 @@ struct vgt_if {
} __packed;
#define vgtif_reg(x) \
_MMIO((VGT_PVINFO_PAGE + (long)&((struct vgt_if *)NULL)->x))
_MMIO((VGT_PVINFO_PAGE + offsetof(struct vgt_if, x)))
/* vGPU display status to be used by the host side */
#define VGT_DRV_DISPLAY_NOT_READY 0