diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/rsa-pkcs1pad.c | 19 |
1 files changed, 5 insertions, 14 deletions
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index 5c1c78e21f84..d9baefb7d5d1 100644 --- a/crypto/rsa-pkcs1pad.c +++ b/crypto/rsa-pkcs1pad.c @@ -103,7 +103,7 @@ struct pkcs1pad_inst_ctx { struct pkcs1pad_request { struct akcipher_request child_req; - struct scatterlist in_sg[3], out_sg[2]; + struct scatterlist in_sg[2], out_sg[1]; uint8_t *in_buf, *out_buf; }; @@ -163,19 +163,10 @@ static int pkcs1pad_get_max_size(struct crypto_akcipher *tfm) static void pkcs1pad_sg_set_buf(struct scatterlist *sg, void *buf, size_t len, struct scatterlist *next) { - int nsegs = next ? 1 : 0; - - if (offset_in_page(buf) + len <= PAGE_SIZE) { - nsegs += 1; - sg_init_table(sg, nsegs); - sg_set_buf(sg, buf, len); - } else { - nsegs += 2; - sg_init_table(sg, nsegs); - sg_set_buf(sg + 0, buf, PAGE_SIZE - offset_in_page(buf)); - sg_set_buf(sg + 1, buf + PAGE_SIZE - offset_in_page(buf), - offset_in_page(buf) + len - PAGE_SIZE); - } + int nsegs = next ? 2 : 1; + + sg_init_table(sg, nsegs); + sg_set_buf(sg, buf, len); if (next) sg_chain(sg, nsegs, next); |