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crypto: qat - Stop dropping leading zeros from RSA output

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There is not need to drop leading zeros from the RSA output
operations results.

Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Salvatore Benedetto 2016-07-07 15:52:17 +01:00 committed by Herbert Xu
parent c9839143eb
commit bd76ad4abf
1 changed files with 0 additions and 20 deletions
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20
drivers/crypto/qat/qat_common/qat_asym_algs.c
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@ -571,32 +571,12 @@ static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp)
areq->dst_len = req->ctx.rsa->key_sz;
if (req->dst_align) {
char *ptr = req->dst_align;
while (!(*ptr) && areq->dst_len) {
areq->dst_len--;
ptr++;
}
if (areq->dst_len != req->ctx.rsa->key_sz)
memmove(req->dst_align, ptr, areq->dst_len);
scatterwalk_map_and_copy(req->dst_align, areq->dst, 0,
areq->dst_len, 1);
dma_free_coherent(dev, req->ctx.rsa->key_sz, req->dst_align,
req->out.rsa.enc.c);
} else {
char *ptr = sg_virt(areq->dst);
while (!(*ptr) && areq->dst_len) {
areq->dst_len--;
ptr++;
}
if (sg_virt(areq->dst) != ptr && areq->dst_len)
memmove(sg_virt(areq->dst), ptr, areq->dst_len);
dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz,
DMA_FROM_DEVICE);
}