drm/nouveau/kms/nv04-nv4x: Use match_string() helper to simplify the code

match_string() returns the array index of a matching string.
Use it instead of the open-coded implementation.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
index 03466f04c7419162f91659f91d12cada10458a39..3a9489ed6544f0be5763ad55d0d89d5dc9e88f8c 100644 (file)
--- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
@@ -644,16 +644,13 @@ static int nv17_tv_create_resources(struct drm_encoder *encoder,
        int i;
 
        if (nouveau_tv_norm) {
-               for (i = 0; i < num_tv_norms; i++) {
-                       if (!strcmp(nv17_tv_norm_names[i], nouveau_tv_norm)) {
-                               tv_enc->tv_norm = i;
-                               break;
-                       }
-               }
-
-               if (i == num_tv_norms)
+               i = match_string(nv17_tv_norm_names, num_tv_norms,
+                                nouveau_tv_norm);
+               if (i < 0)
                        NV_WARN(drm, "Invalid TV norm setting \"%s\"\n",
                                nouveau_tv_norm);
+               else
+                       tv_enc->tv_norm = i;
        }
 
        drm_mode_create_tv_properties(dev, num_tv_norms, nv17_tv_norm_names);