drm/amd/display: Remove set but used 'temp'

Addresses the following gcc warning with "make W=1":

In file included from drivers/gpu/drm/amd/amdgpu/../display/dmub/src/../dmub_srv.h:67:0,
	from drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn21.c:26:
drivers/gpu/drm/amd/amdgpu/../display/dmub/src/../inc/dmub_cmd.h: In function ‘dmub_rb_flush_pending’:
drivers/gpu/drm/amd/amdgpu/../display/dmub/src/../inc/dmub_cmd.h:795:12: warning: variable ‘temp’ set but not used
 [-Wunused-but-set-variable]
    uint64_t temp;
                ^
In file included from drivers/gpu/drm/amd/amdgpu/../display/dmub/src/../dmub_srv.h:67:0,
                 from drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn30.c:26:
drivers/gpu/drm/amd/amdgpu/../display/dmub/src/../inc/dmub_cmd.h: In function ‘dmub_rb_flush_pending’:
drivers/gpu/drm/amd/amdgpu/../display/dmub/src/../inc/dmub_cmd.h:795:12: warning: variable ‘temp’ set but not used
[-Wunused-but-set-variable]
   uint64_t temp;

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
index a0bd502..f74c7fa 100644 (file)
--- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -792,12 +792,10 @@ static inline void dmub_rb_flush_pending(const struct dmub_rb *rb)
 
        while (rptr != wptr) {
                uint64_t volatile *data = (uint64_t volatile *)rb->base_address + rptr / sizeof(uint64_t);
-               //uint64_t volatile *p = (uint64_t volatile *)data;
-               uint64_t temp;
                int i;
 
                for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++)
-                       temp = *data++;
+                       *data++;
 
                rptr += DMUB_RB_CMD_SIZE;
                if (rptr >= rb->capacity)