[PATCH] mark struct file_operations const 9
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/sound/oss/ad1889.c b/sound/oss/ad1889.c
index 09263d7..f072432 100644
--- a/sound/oss/ad1889.c
+++ b/sound/oss/ad1889.c
@@ -778,7 +778,7 @@
return 0;
}
-static struct file_operations ad1889_fops = {
+static const struct file_operations ad1889_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = ad1889_read,
@@ -812,7 +812,7 @@
return codec->mixer_ioctl(codec, cmd, arg);
}
-static struct file_operations ad1889_mixer_fops = {
+static const struct file_operations ad1889_mixer_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = ad1889_mixer_ioctl,