diff options
Diffstat (limited to 'fs/cifs/cifsencrypt.c')
| -rw-r--r-- | fs/cifs/cifsencrypt.c | 28 |
1 files changed, 6 insertions, 22 deletions
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 7be589aeb520..357bd27a7fd1 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -169,11 +169,11 @@ static int cifs_shash_iter(const struct iov_iter *iter, size_t maxsize, } int __cifs_calc_signature(struct smb_rqst *rqst, - struct TCP_Server_Info *server, char *signature, - struct shash_desc *shash) + struct TCP_Server_Info *server, char *signature, + struct shash_desc *shash) { int i; - int rc; + ssize_t rc; struct kvec *iov = rqst->rq_iov; int n_vec = rqst->rq_nvec; @@ -205,25 +205,9 @@ int __cifs_calc_signature(struct smb_rqst *rqst, } } - /* now hash over the rq_pages array */ - for (i = 0; i < rqst->rq_npages; i++) { - void *kaddr; - unsigned int len, offset; - - rqst_page_get_length(rqst, i, &len, &offset); - - kaddr = (char *) kmap(rqst->rq_pages[i]) + offset; - - rc = crypto_shash_update(shash, kaddr, len); - if (rc) { - cifs_dbg(VFS, "%s: Could not update with payload\n", - __func__); - kunmap(rqst->rq_pages[i]); - return rc; - } - - kunmap(rqst->rq_pages[i]); - } + rc = cifs_shash_iter(&rqst->rq_iter, iov_iter_count(&rqst->rq_iter), shash); + if (rc < 0) + return rc; rc = crypto_shash_final(shash, signature); if (rc) |