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drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue If we move the shift into each case not only do we kill the warning from smatch, but we shrink the code slightly: text data bss dec hex filename 1267906 20587 3168 1291661 13b58d before 1267890 20587 3168 1291645 13b57d after Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Matthew Auld <matthew.william.auld@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171107154055.19460-1-chris@chris-wilson.co.uk Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com> Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>