diff options
Diffstat (limited to 'fs/cifs/smb2ops.c')
| -rw-r--r-- | fs/cifs/smb2ops.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index e6bcd2baf446..157a19f371d6 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -4274,6 +4274,12 @@ static void *smb2_get_aead_req(struct crypto_aead *tfm, const struct smb_rqst *r sg_init_table(*sgl, num_sgs); sg = *sgl; + /* + * The first rqst has a transform header where the + * first 20 bytes are not part of the encrypted blob. + */ + skip = 20; + /* Assumes the first rqst has a transform header as the first iov. * I.e. * rqst[0].rq_iov[0] is transform header @@ -4281,17 +4287,15 @@ static void *smb2_get_aead_req(struct crypto_aead *tfm, const struct smb_rqst *r * rqst[1+].rq_iov[0+] data to be encrypted/decrypted */ for (i = 0; i < num_rqst; i++) { - /* - * The first rqst has a transform header where the - * first 20 bytes are not part of the encrypted blob. - */ for (j = 0; j < rqst[i].rq_nvec; j++) { struct kvec *iov = &rqst[i].rq_iov[j]; - skip = (i == 0) && (j == 0) ? 20 : 0; addr = (unsigned long)iov->iov_base + skip; len = iov->iov_len - skip; sg = cifs_sg_set_buf(sg, (void *)addr, len); + + /* See the above comment on the 'skip' assignment */ + skip = 0; } for (j = 0; j < rqst[i].rq_npages; j++) { rqst_page_get_length(&rqst[i], j, &len, &off); |