[PATCH 06/12] staging: lustre: libcfs: start using enum cfs_crypto_hash_alg

From: James Simmons
Date: Sat Mar 26 2016 - 15:43:30 EST


From: Andreas Dilger <andreas.dilger@xxxxxxxxx>

Fix the cfs_crypto_hash_* functions to take enum cfs_crypto_hash_alg
as the algorithm type, instead of an unsigned char.

Signed-off-by: Andreas Dilger <andreas.dilger@xxxxxxxxx>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053
Reviewed-on: http://review.whamcloud.com/9990
Reviewed-by: Bob Glossman <bob.glossman@xxxxxxxxx>
Reviewed-by: James Simmons <uja.ornl@xxxxxxxxx>
Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx>
---
.../lustre/include/linux/libcfs/libcfs_crypto.h | 23 ++++++++++---------
.../lustre/lnet/libcfs/linux/linux-crypto.c | 10 ++++----
2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
index ade8894..02be7d7 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
@@ -75,7 +75,7 @@ static struct cfs_crypto_hash_type hash_types[] = {
* \retval NULL for unknown algorithm identifier
*/
static inline const struct cfs_crypto_hash_type *
-cfs_crypto_hash_type(unsigned char hash_alg)
+cfs_crypto_hash_type(enum cfs_crypto_hash_alg hash_alg)
{
struct cfs_crypto_hash_type *ht;

@@ -96,7 +96,7 @@ cfs_crypto_hash_type(unsigned char hash_alg)
* \retval "unknown" if hash algorithm is unknown
*/
static inline const char *
-cfs_crypto_hash_name(unsigned char hash_alg)
+cfs_crypto_hash_name(enum cfs_crypto_hash_alg hash_alg)
{
const struct cfs_crypto_hash_type *ht;

@@ -114,7 +114,7 @@ cfs_crypto_hash_name(unsigned char hash_alg)
* \retval hash algorithm digest size in bytes
* \retval 0 if hash algorithm type is unknown
*/
-static inline int cfs_crypto_hash_digestsize(unsigned char hash_alg)
+static inline int cfs_crypto_hash_digestsize(enum cfs_crypto_hash_alg hash_alg)
{
const struct cfs_crypto_hash_type *ht;

@@ -132,15 +132,16 @@ static inline int cfs_crypto_hash_digestsize(unsigned char hash_alg)
*/
static inline unsigned char cfs_crypto_hash_alg(const char *algname)
{
- unsigned char i;
+ enum cfs_crypto_hash_alg hash_alg;

- for (i = 0; i < CFS_HASH_ALG_MAX; i++)
- if (!strcmp(hash_types[i].cht_name, algname))
- break;
- return (i == CFS_HASH_ALG_MAX ? CFS_HASH_ALG_UNKNOWN : i);
+ for (hash_alg = 0; hash_alg < CFS_HASH_ALG_MAX; hash_alg++)
+ if (strcmp(hash_types[hash_alg].cht_name, algname) == 0)
+ return hash_alg;
+
+ return CFS_HASH_ALG_UNKNOWN;
}

-int cfs_crypto_hash_digest(unsigned char hash_alg,
+int cfs_crypto_hash_digest(enum cfs_crypto_hash_alg hash_alg,
const void *buf, unsigned int buf_len,
unsigned char *key, unsigned int key_len,
unsigned char *hash, unsigned int *hash_len);
@@ -149,7 +150,7 @@ int cfs_crypto_hash_digest(unsigned char hash_alg,
struct cfs_crypto_hash_desc;

struct cfs_crypto_hash_desc *
-cfs_crypto_hash_init(unsigned char hash_alg,
+cfs_crypto_hash_init(enum cfs_crypto_hash_alg hash_alg,
unsigned char *key, unsigned int key_len);
int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *desc,
struct page *page, unsigned int offset,
@@ -160,5 +161,5 @@ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *desc,
unsigned char *hash, unsigned int *hash_len);
int cfs_crypto_register(void);
void cfs_crypto_unregister(void);
-int cfs_crypto_hash_speed(unsigned char hash_alg);
+int cfs_crypto_hash_speed(enum cfs_crypto_hash_alg hash_alg);
#endif
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c
index 0241729..6fe1fdd 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c
@@ -57,7 +57,7 @@ static int cfs_crypto_hash_speeds[CFS_HASH_ALG_MAX];
* \retval 0 on success
* \retval negative errno on failure
*/
-static int cfs_crypto_hash_alloc(unsigned char hash_alg,
+static int cfs_crypto_hash_alloc(enum cfs_crypto_hash_alg hash_alg,
const struct cfs_crypto_hash_type **type,
struct ahash_request **req,
unsigned char *key,
@@ -141,7 +141,7 @@ static int cfs_crypto_hash_alloc(unsigned char hash_alg,
* \retval negative errno for other errors from lower
* layers.
*/
-int cfs_crypto_hash_digest(unsigned char hash_alg,
+int cfs_crypto_hash_digest(enum cfs_crypto_hash_alg hash_alg,
const void *buf, unsigned int buf_len,
unsigned char *key, unsigned int key_len,
unsigned char *hash, unsigned int *hash_len)
@@ -193,7 +193,7 @@ EXPORT_SYMBOL(cfs_crypto_hash_digest);
* \retval ERR_PTR(errno) in case of error
*/
struct cfs_crypto_hash_desc *
-cfs_crypto_hash_init(unsigned char hash_alg,
+cfs_crypto_hash_init(enum cfs_crypto_hash_alg hash_alg,
unsigned char *key, unsigned int key_len)
{
struct ahash_request *req;
@@ -309,7 +309,7 @@ EXPORT_SYMBOL(cfs_crypto_hash_final);
* \param[in] buf data buffer on which to compute the hash
* \param[in] buf_len length of \buf on which to compute hash
*/
-static void cfs_crypto_performance_test(unsigned char hash_alg,
+static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg,
const unsigned char *buf,
unsigned int buf_len)
{
@@ -355,7 +355,7 @@ static void cfs_crypto_performance_test(unsigned char hash_alg,
* \retval -ENOENT if \a hash_alg is unsupported
* \retval negative errno if \a hash_alg speed is unavailable
*/
-int cfs_crypto_hash_speed(unsigned char hash_alg)
+int cfs_crypto_hash_speed(enum cfs_crypto_hash_alg hash_alg)
{
if (hash_alg < CFS_HASH_ALG_MAX)
return cfs_crypto_hash_speeds[hash_alg];
--
1.7.1