linux-kernel - [PATCH] ASoC: hdmi-codec: use sizeof

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Message-Id: <20170918094843.28121-1-colin.king@canonical.com>
Date:   Mon, 18 Sep 2017 10:48:43 +0100
From:   Colin King <colin.king@...onical.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Arnaud Pouliquen <arnaud.pouliquen@...com>,
        alsa-devel@...a-project.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: hdmi-codec: use sizeof_field rather than declaring hcp

From: Colin Ian King <colin.king@...onical.com>

Use FIELD_SIZEOF rather than declaring and initializing hcp. Remove
unused variables. Cleans up clang warning:

warning: Value stored to 'hcp' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 sound/soc/codecs/hdmi-codec.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index 3abf82563408..5672e516bec3 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -303,11 +303,8 @@ enum {
 static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
 			     struct snd_ctl_elem_info *uinfo)
 {
-	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
-	struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
-
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
-	uinfo->count = sizeof(hcp->eld);
+	uinfo->count = FIELD_SIZEOF(struct hdmi_codec_priv, eld);
 
 	return 0;
 }
-- 
2.14.1