From: Radu Alexe <[email protected]> This function will be used into further patches.
Signed-off-by: Radu Alexe <[email protected]> Signed-off-by: Horia Geantă <[email protected]> --- drivers/crypto/caam/caampkc.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c index 999ba18495b0..d2c6977ba82e 100644 --- a/drivers/crypto/caam/caampkc.c +++ b/drivers/crypto/caam/caampkc.c @@ -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; -- 2.12.0.264.gd6db3f216544
