const: make block_device_operations const

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index adc205c..85f0e8c 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -130,7 +130,7 @@
 	return 0;
 }
 
-static struct block_device_operations mmc_bdops = {
+static const struct block_device_operations mmc_bdops = {
 	.open			= mmc_blk_open,
 	.release		= mmc_blk_release,
 	.getgeo			= mmc_blk_getgeo,