seq_file: constify seq_operations
Make all seq_operations structs const, to help mitigate against
revectoring user-triggerable function pointers.
This is derived from the grsecurity patch, although generated from scratch
because it's simpler than extracting the changes from there.
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index f83a809..aeead75 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -187,7 +187,7 @@
/* No-op */
}
-static struct seq_operations load_seq_ops = {
+static const struct seq_operations load_seq_ops = {
.start = load_seq_start,
.next = load_seq_next,
.show = load_seq_show,
@@ -503,7 +503,7 @@
/* No-op */
}
-static struct seq_operations cipso_seq_ops = {
+static const struct seq_operations cipso_seq_ops = {
.start = cipso_seq_start,
.stop = cipso_seq_stop,
.next = cipso_seq_next,
@@ -697,7 +697,7 @@
/* No-op */
}
-static struct seq_operations netlbladdr_seq_ops = {
+static const struct seq_operations netlbladdr_seq_ops = {
.start = netlbladdr_seq_start,
.stop = netlbladdr_seq_stop,
.next = netlbladdr_seq_next,