linux-kernel - [PATCH 28/33] ALSA: dice use match

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Message-ID: <1526903890-35761-29-git-send-email-xieyisheng1@huawei.com>
Date:   Mon, 21 May 2018 19:58:05 +0800
From:   Yisheng Xie <xieyisheng1@...wei.com>
To:     <linux-kernel@...r.kernel.org>
CC:     Yisheng Xie <xieyisheng1@...wei.com>,
        Clemens Ladisch <clemens@...isch.de>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Takashi Sakamoto <o-takashi@...amocchi.jp>,
        <alsa-devel@...a-project.org>
Subject: [PATCH 28/33] ALSA: dice use match_string() helper

match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Cc: Clemens Ladisch <clemens@...isch.de>
Cc: Jaroslav Kysela <perex@...ex.cz>
Cc: Takashi Iwai <tiwai@...e.com>
Cc: Takashi Sakamoto <o-takashi@...amocchi.jp>
Cc: alsa-devel@...a-project.org
Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
---
 sound/firewire/dice/dice.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/sound/firewire/dice/dice.c b/sound/firewire/dice/dice.c
index 96bb01b..0639074 100644
--- a/sound/firewire/dice/dice.c
+++ b/sound/firewire/dice/dice.c
@@ -35,19 +35,13 @@ static bool force_two_pcm_support(struct fw_unit *unit)
 		"SAFFIRE_PRO_40_1",
 	};
 	char model[32];
-	unsigned int i;
 	int err;
 
 	err = fw_csr_string(unit->directory, CSR_MODEL, model, sizeof(model));
 	if (err < 0)
 		return false;
 
-	for (i = 0; i < ARRAY_SIZE(models); i++) {
-		if (strcmp(models[i], model) == 0)
-			break;
-	}
-
-	return i < ARRAY_SIZE(models);
+	return match_string(models, ARRAY_SIZE(models), model) >= 0;
 }
 
 static int check_dice_category(struct fw_unit *unit)
-- 
1.7.12.4