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Subject[PATCH 22/33] drm/i915: use match_string() helper
Date
match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
---
drivers/gpu/drm/i915/intel_pipe_crc.c | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c
index 1f5cd57..f6b1335 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.c
@@ -764,13 +764,12 @@ enum intel_pipe_crc_object {
{
int i;

- for (i = 0; i < ARRAY_SIZE(pipe_crc_objects); i++)
- if (!strcmp(buf, pipe_crc_objects[i])) {
- *o = i;
- return 0;
- }
+ i = match_string(pipe_crc_objects, ARRAY_SIZE(pipe_crc_objects), buf);
+ if (i < 0)
+ return -EINVAL;

- return -EINVAL;
+ *o = i;
+ return 0;
}

static int display_crc_ctl_parse_pipe(struct drm_i915_private *dev_priv,
@@ -796,13 +795,12 @@ static int display_crc_ctl_parse_pipe(struct drm_i915_private *dev_priv,
return 0;
}

- for (i = 0; i < ARRAY_SIZE(pipe_crc_sources); i++)
- if (!strcmp(buf, pipe_crc_sources[i])) {
- *s = i;
- return 0;
- }
+ i = match_string(pipe_crc_sources, ARRAY_SIZE(pipe_crc_sources), buf);
+ if (i < 0)
+ return -EINVAL;

- return -EINVAL;
+ *s = i;
+ return 0;
}

static int display_crc_ctl_parse(struct drm_i915_private *dev_priv,
--
1.7.12.4
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