rdmacg: Convert to use match_string() helper

The new helper returns index of the matching string in an array.
We are going to use it here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/kernel/cgroup/rdma.c b/kernel/cgroup/rdma.c
index defad3c..d3bbb75 100644 (file)
--- a/kernel/cgroup/rdma.c
+++ b/kernel/cgroup/rdma.c
@@ -362,35 +362,32 @@ EXPORT_SYMBOL(rdmacg_unregister_device);
 static int parse_resource(char *c, int *intval)
 {
        substring_t argstr;
-       const char **table = &rdmacg_resource_names[0];
        char *name, *value = c;
        size_t len;
-       int ret, i = 0;
+       int ret, i;
 
        name = strsep(&value, "=");
        if (!name || !value)
                return -EINVAL;
 
-       len = strlen(value);
+       i = match_string(rdmacg_resource_names, RDMACG_RESOURCE_MAX, name);
+       if (i < 0)
+               return i;
 
-       for (i = 0; i < RDMACG_RESOURCE_MAX; i++) {
-               if (strcmp(table[i], name))
-                       continue;
+       len = strlen(value);
 
-               argstr.from = value;
-               argstr.to = value + len;
+       argstr.from = value;
+       argstr.to = value + len;
 
-               ret = match_int(&argstr, intval);
-               if (ret >= 0) {
-                       if (*intval < 0)
-                               break;
-                       return i;
-               }
-               if (strncmp(value, RDMACG_MAX_STR, len) == 0) {
-                       *intval = S32_MAX;
-                       return i;
-               }
-               break;
+       ret = match_int(&argstr, intval);
+       if (ret >= 0) {
+               if (*intval < 0)
+                       return -EINVAL;
+               return i;
+       }
+       if (strncmp(value, RDMACG_MAX_STR, len) == 0) {
+               *intval = S32_MAX;
+               return i;
        }
        return -EINVAL;
 }