drm: Missed clflushopt in drm_clflush_virt_range

With this commit:

2a0788dc9bc4 x86: Use clflushopt in drm_clflush_virt_range

If clflushopt is available on the system, we use it instead of clflush
in drm_clflush_virt_range. There were two calls to clflush in this
function, but only one was changed to clflushopt. This patch changes
the other clflush call to clflushopt.

Signed-off-by: Ross Zwisler <[e-mail]>
Reported-by: Matthew Wilcox <[e-mail]>

Cc: David Airlie <[e-mail]>
Cc: [e-mail]
Cc: H Peter Anvin <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Signed-off-by: Daniel Vetter <[e-mail]>

drivers/gpu/drm/drm_cache.c

···
 		void *end = addr + length;
 		mb();
 		for (; addr < end; addr += boot_cpu_data.x86_clflush_size)
-			clflush(addr);
+			clflushopt(addr);
 		clflushopt(end - 1);
 		mb();
 		return;