renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 03:33:59 +08:00
Code

crypto: caam - incapsulate dropping leading zeros into function

Browse Source 
This function will be used into further patches.

Signed-off-by: Radu Alexe <radu.alexe@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Radu Alexe 2017-04-25 16:26:37 +03:00 committed by Herbert Xu
parent 7fcaf62a9f
commit 7ca4a9a10f
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/crypto/caam/caampkc.c
View File

@ -357,6 +357,14 @@ static void caam_rsa_free_key(struct caam_rsa_key *key)
key->n_sz = 0;
}
static void caam_rsa_drop_leading_zeros(const u8 **ptr, size_t *nbytes)
{
while (!**ptr && *nbytes) {
(*ptr)++;
(*nbytes)--;
}
}
/**
* caam_read_raw_data - Read a raw byte stream as a positive integer.
* The function skips buffer's leading zeros, copies the remained data
@ -370,10 +378,7 @@ static inline u8 *caam_read_raw_data(const u8 *buf, size_t *nbytes)
{
u8 *val;
while (!*buf && *nbytes) {
buf++;
(*nbytes)--;
}
caam_rsa_drop_leading_zeros(&buf, nbytes);
if (!*nbytes)
return NULL;