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crypto: caam - constify key data

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Key data is not modified, it is copied in the shared descriptor.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Horia Geantă 2017-12-19 12:16:04 +02:00 committed by Herbert Xu
parent d8c7fe9f2a
commit 6674a4fdc6
2 changed files with 8 additions and 8 deletions
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6
drivers/crypto/caam/caamalg_desc.c
View File

@ -1075,7 +1075,7 @@ void cnstr_shdsc_ablkcipher_encap(u32 * const desc, struct alginfo *cdata,
/* Load nonce into CONTEXT1 reg */
if (is_rfc3686) {
u8 *nonce = cdata->key_virt + cdata->keylen;
const u8 *nonce = cdata->key_virt + cdata->keylen;
append_load_as_imm(desc, nonce, CTR_RFC3686_NONCE_SIZE,
LDST_CLASS_IND_CCB |
@ -1140,7 +1140,7 @@ void cnstr_shdsc_ablkcipher_decap(u32 * const desc, struct alginfo *cdata,
/* Load nonce into CONTEXT1 reg */
if (is_rfc3686) {
u8 *nonce = cdata->key_virt + cdata->keylen;
const u8 *nonce = cdata->key_virt + cdata->keylen;
append_load_as_imm(desc, nonce, CTR_RFC3686_NONCE_SIZE,
LDST_CLASS_IND_CCB |
@ -1209,7 +1209,7 @@ void cnstr_shdsc_ablkcipher_givencap(u32 * const desc, struct alginfo *cdata,
/* Load Nonce into CONTEXT1 reg */
if (is_rfc3686) {
u8 *nonce = cdata->key_virt + cdata->keylen;
const u8 *nonce = cdata->key_virt + cdata->keylen;
append_load_as_imm(desc, nonce, CTR_RFC3686_NONCE_SIZE,
LDST_CLASS_IND_CCB |

10
drivers/crypto/caam/desc_constr.h
View File

@ -109,7 +109,7 @@ static inline void init_job_desc_shared(u32 * const desc, dma_addr_t ptr,
append_ptr(desc, ptr);
}
static inline void append_data(u32 * const desc, void *data, int len)
static inline void append_data(u32 * const desc, const void *data, int len)
{
u32 *offset = desc_end(desc);
@ -172,7 +172,7 @@ static inline void append_cmd_ptr_extlen(u32 * const desc, dma_addr_t ptr,
append_cmd(desc, len);
}
static inline void append_cmd_data(u32 * const desc, void *data, int len,
static inline void append_cmd_data(u32 * const desc, const void *data, int len,
u32 command)
{
append_cmd(desc, command | IMMEDIATE | len);
@ -271,7 +271,7 @@ APPEND_SEQ_PTR_INTLEN(in, IN)
APPEND_SEQ_PTR_INTLEN(out, OUT)
#define APPEND_CMD_PTR_TO_IMM(cmd, op) \
static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \
static inline void append_##cmd##_as_imm(u32 * const desc, const void *data, \
unsigned int len, u32 options) \
{ \
PRINT_POS; \
@ -312,7 +312,7 @@ APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32)
* from length of immediate data provided, e.g., split keys
*/
#define APPEND_CMD_PTR_TO_IMM2(cmd, op) \
static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \
static inline void append_##cmd##_as_imm(u32 * const desc, const void *data, \
unsigned int data_len, \
unsigned int len, u32 options) \
{ \
@ -452,7 +452,7 @@ struct alginfo {
unsigned int keylen_pad;
union {
dma_addr_t key_dma;
void *key_virt;
const void *key_virt;
};
bool key_inline;
};