const: constify remaining file_operations

[akpm@linux-foundation.org: fix KVM]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 610dbd1..96d10f4 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -240,7 +240,7 @@
 	return 0;
 }
 
-static struct file_operations mmc_dbg_ext_csd_fops = {
+static const struct file_operations mmc_dbg_ext_csd_fops = {
 	.open		= mmc_ext_csd_open,
 	.read		= mmc_ext_csd_read,
 	.release	= mmc_ext_csd_release,