[PATCH] mark struct file_operations const 4

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@sdl.org: dvb fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index 3083c8075d13..fb1410c6f864 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -1715,7 +1715,7 @@ static void cafe_v4l_dev_release(struct video_device *vd)
  * clone it for specific real devices.
  */
 
-static struct file_operations cafe_v4l_fops = {
+static const struct file_operations cafe_v4l_fops = {
         .owner = THIS_MODULE,
         .open = cafe_v4l_open,
         .release = cafe_v4l_release,
@@ -1969,7 +1969,7 @@ static ssize_t cafe_dfs_read_regs(struct file *file,
                         s - cafe_debug_buf);
 }
 
-static struct file_operations cafe_dfs_reg_ops = {
+static const struct file_operations cafe_dfs_reg_ops = {
         .owner = THIS_MODULE,
         .read = cafe_dfs_read_regs,
         .open = cafe_dfs_open
@@ -1995,7 +1995,7 @@ static ssize_t cafe_dfs_read_cam(struct file *file,
                         s - cafe_debug_buf);
 }
 
-static struct file_operations cafe_dfs_cam_ops = {
+static const struct file_operations cafe_dfs_cam_ops = {
         .owner = THIS_MODULE,
         .read = cafe_dfs_read_cam,
         .open = cafe_dfs_open