Pointer members of an object with static storage duration, if not
explicitly initialized, will be initialized to a NULL pointer.
The crypto API checks if these pointers are not NULL before using them,
therefore we can safely remove these empty functions.
Signed-off-by: Tudor Ambarus <tudor.amba...@microchip.com>
---
changes in v3:
- update the commit message
changes in v2:
- remove empty atmel_aes_gcm_exit()
drivers/crypto/atmel-aes.c | 20 --------------------
drivers/crypto/atmel-tdes.c | 18 ------------------
2 files changed, 38 deletions(-)
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index 9659759..c2f0a12 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -1237,10 +1237,6 @@ static int atmel_aes_ctr_cra_init(struct crypto_tfm *tfm)
return 0;
}
-static void atmel_aes_cra_exit(struct crypto_tfm *tfm)
-{
-}
-
static struct crypto_alg aes_algs[] = {
{
.cra_name = "ecb(aes)",
@@ -1253,7 +1249,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1273,7 +1268,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1294,7 +1288,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1315,7 +1308,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1336,7 +1328,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1357,7 +1348,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1378,7 +1368,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1399,7 +1388,6 @@ static struct crypto_alg aes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_ctr_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1422,7 +1410,6 @@ static struct crypto_alg aes_cfb64_alg = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
@@ -1809,18 +1796,12 @@ static int atmel_aes_gcm_init(struct crypto_aead *tfm)
return 0;
}
-static void atmel_aes_gcm_exit(struct crypto_aead *tfm)
-{
-
-}
-
static struct aead_alg aes_gcm_alg = {
.setkey = atmel_aes_gcm_setkey,
.setauthsize = atmel_aes_gcm_setauthsize,
.encrypt = atmel_aes_gcm_encrypt,
.decrypt = atmel_aes_gcm_decrypt,
.init = atmel_aes_gcm_init,
- .exit = atmel_aes_gcm_exit,
.ivsize = GCM_AES_IV_SIZE,
.maxauthsize = AES_BLOCK_SIZE,
@@ -1956,7 +1937,6 @@ static struct crypto_alg aes_xts_alg = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_aes_xts_cra_init,
- .cra_exit = atmel_aes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index 0ece4b8..48e8653 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -911,10 +911,6 @@ static int atmel_tdes_cra_init(struct crypto_tfm *tfm)
return 0;
}
-static void atmel_tdes_cra_exit(struct crypto_tfm *tfm)
-{
-}
-
static struct crypto_alg tdes_algs[] = {
{
.cra_name = "ecb(des)",
@@ -927,7 +923,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -947,7 +942,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -968,7 +962,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -989,7 +982,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -1010,7 +1002,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -1031,7 +1022,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -1052,7 +1042,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
@@ -1073,7 +1062,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2 * DES_KEY_SIZE,
.max_keysize = 3 * DES_KEY_SIZE,
@@ -1093,7 +1081,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2*DES_KEY_SIZE,
.max_keysize = 3*DES_KEY_SIZE,
@@ -1114,7 +1101,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2*DES_KEY_SIZE,
.max_keysize = 2*DES_KEY_SIZE,
@@ -1135,7 +1121,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2*DES_KEY_SIZE,
.max_keysize = 2*DES_KEY_SIZE,
@@ -1156,7 +1141,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2*DES_KEY_SIZE,
.max_keysize = 2*DES_KEY_SIZE,
@@ -1177,7 +1161,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2*DES_KEY_SIZE,
.max_keysize = 2*DES_KEY_SIZE,
@@ -1198,7 +1181,6 @@ static struct crypto_alg tdes_algs[] = {
.cra_type = &crypto_ablkcipher_type,
.cra_module = THIS_MODULE,
.cra_init = atmel_tdes_cra_init,
- .cra_exit = atmel_tdes_cra_exit,
.cra_u.ablkcipher = {
.min_keysize = 2*DES_KEY_SIZE,
.max_keysize = 3*DES_KEY_SIZE,
--
2.9.4
