dm crypt: constify crypt_iv_operations structures

The crypt_iv_operations are never modified, so declare them
as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 3b8eab98594730505404df21e445dd76b4920949..590d7c4e1083a67ef1a43d35f0115c70889027f7 100644 (file)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -141,7 +141,7 @@ struct crypt_config {
        char *cipher;
        char *cipher_string;
 
-       struct crypt_iv_operations *iv_gen_ops;
+       const struct crypt_iv_operations *iv_gen_ops;
        union {
                struct iv_essiv_private essiv;
                struct iv_benbi_private benbi;
@@ -758,15 +758,15 @@ static int crypt_iv_tcw_post(struct crypt_config *cc, u8 *iv,
        return r;
 }
 
-static struct crypt_iv_operations crypt_iv_plain_ops = {
+static const struct crypt_iv_operations crypt_iv_plain_ops = {
        .generator = crypt_iv_plain_gen
 };
 
-static struct crypt_iv_operations crypt_iv_plain64_ops = {
+static const struct crypt_iv_operations crypt_iv_plain64_ops = {
        .generator = crypt_iv_plain64_gen
 };
 
-static struct crypt_iv_operations crypt_iv_essiv_ops = {
+static const struct crypt_iv_operations crypt_iv_essiv_ops = {
        .ctr       = crypt_iv_essiv_ctr,
        .dtr       = crypt_iv_essiv_dtr,
        .init      = crypt_iv_essiv_init,
@@ -774,17 +774,17 @@ static struct crypt_iv_operations crypt_iv_essiv_ops = {
        .generator = crypt_iv_essiv_gen
 };
 
-static struct crypt_iv_operations crypt_iv_benbi_ops = {
+static const struct crypt_iv_operations crypt_iv_benbi_ops = {
        .ctr       = crypt_iv_benbi_ctr,
        .dtr       = crypt_iv_benbi_dtr,
        .generator = crypt_iv_benbi_gen
 };
 
-static struct crypt_iv_operations crypt_iv_null_ops = {
+static const struct crypt_iv_operations crypt_iv_null_ops = {
        .generator = crypt_iv_null_gen
 };
 
-static struct crypt_iv_operations crypt_iv_lmk_ops = {
+static const struct crypt_iv_operations crypt_iv_lmk_ops = {
        .ctr       = crypt_iv_lmk_ctr,
        .dtr       = crypt_iv_lmk_dtr,
        .init      = crypt_iv_lmk_init,
@@ -793,7 +793,7 @@ static struct crypt_iv_operations crypt_iv_lmk_ops = {
        .post      = crypt_iv_lmk_post
 };
 
-static struct crypt_iv_operations crypt_iv_tcw_ops = {
+static const struct crypt_iv_operations crypt_iv_tcw_ops = {
        .ctr       = crypt_iv_tcw_ctr,
        .dtr       = crypt_iv_tcw_dtr,
        .init      = crypt_iv_tcw_init,