Nouveau - Dec 2019 - [PATCH -next] drm/nouveau/nv04: 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 at huawei.com>
---
 drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
index 03466f0..3a9489e 100644
--- 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);
-- 
2.7.4

On Mon, 30 Dec 2019 at 12:48, YueHaibing <yuehaibing at huawei.com>
wrote:
>
> match_string() returns the array index of a matching string.
> Use it instead of the open-coded implementation.
>
> Signed-off-by: YueHaibing <yuehaibing at huawei.com>
Thanks!
> ---
>  drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 13 +++++--------
>  1 file changed, 5 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c
> index 03466f0..3a9489e 100644
> --- 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);
> --
> 2.7.4
>
>
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