cifs: get rid of unneeded conditional in cifs_get_num_sgs()

Just have @skip set to 0 after first iterations of the two nested
loops.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index cfdd5bf701a1c6fb863a57d364e4603a2959b04b..b26e824d6a0cada346b4bc8a30119dffd84677b5 100644 (file)
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -2162,6 +2162,12 @@ static inline unsigned int cifs_get_num_sgs(const struct smb_rqst *rqst,
        unsigned long addr;
        int i, j;
 
+       /*
+        * 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
@@ -2169,14 +2175,9 @@ static inline unsigned int cifs_get_num_sgs(const struct smb_rqst *rqst,
         * 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;
                        if (unlikely(is_vmalloc_addr((void *)addr))) {
                                len = iov->iov_len - skip;
@@ -2185,6 +2186,7 @@ static inline unsigned int cifs_get_num_sgs(const struct smb_rqst *rqst,
                        } else {
                                nents++;
                        }
+                       skip = 0;
                }
                nents += rqst[i].rq_npages;
        }