[PATCH] mark struct file_operations const 3
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.
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>
diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c
index 55d6ae6..dee9529 100644
--- a/drivers/ieee1394/dv1394.c
+++ b/drivers/ieee1394/dv1394.c
@@ -2147,7 +2147,7 @@
}
static struct cdev dv1394_cdev;
-static struct file_operations dv1394_fops=
+static const struct file_operations dv1394_fops=
{
.owner = THIS_MODULE,
.poll = dv1394_poll,
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index a77a832..aa9ca83 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -3013,7 +3013,7 @@
};
static struct cdev raw1394_cdev;
-static struct file_operations raw1394_fops = {
+static const struct file_operations raw1394_fops = {
.owner = THIS_MODULE,
.read = raw1394_read,
.write = raw1394_write,
diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c
index f4d1ec0..95ca26d 100644
--- a/drivers/ieee1394/video1394.c
+++ b/drivers/ieee1394/video1394.c
@@ -1277,7 +1277,7 @@
#endif
static struct cdev video1394_cdev;
-static struct file_operations video1394_fops=
+static const struct file_operations video1394_fops=
{
.owner = THIS_MODULE,
.unlocked_ioctl = video1394_ioctl,