mempolicy: lose unnecessary loop variable in mpol_parse_str()

We don't really need the extra variable 'i' in mpol_parse_str().  The only
use is as the the loop variable.  Then, it's assigned to 'mode'.  Just use
mode, and loose the 'uninitialized_var()' macro.

Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Ravikiran Thirumalai <kiran@scalex86.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 6 deletions

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 0e1b293e4054..b4f1265df2d8 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2148,12 +2148,11 @@ static const char * const policy_types[] =
 int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
 {
         struct mempolicy *new = NULL;
-        unsigned short uninitialized_var(mode);
+        unsigned short mode;
         unsigned short uninitialized_var(mode_flags);
         nodemask_t nodes;
         char *nodelist = strchr(str, ':');
         char *flags = strchr(str, '=');
-        int i;
         int err = 1;
 
         if (nodelist) {
@@ -2169,13 +2168,12 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
         if (flags)
                 *flags++ = '\0';        /* terminate mode string */
 
-        for (i = 0; i <= MPOL_LOCAL; i++) {
-                if (!strcmp(str, policy_types[i])) {
-                        mode = i;
+        for (mode = 0; mode <= MPOL_LOCAL; mode++) {
+                if (!strcmp(str, policy_types[mode])) {
                         break;
                 }
         }
-        if (i > MPOL_LOCAL)
+        if (mode > MPOL_LOCAL)
                 goto out;
 
         switch (mode) {