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>

1 files changed, 16 insertions, 19 deletions

diff --git a/kernel/cgroup/rdma.c b/kernel/cgroup/rdma.c
index defad3c5e7dc..d3bbb757ee49 100644
--- 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;
 }