linux-kernel - [PATCH] ASoC: fsl_asrc: protect macro argument

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Date:   Sun,  6 Aug 2017 23:36:57 -0700
From:   Stefan Agner <stefan@...er.ch>
To:     timur@...i.org, nicoleotsuka@...il.com, Xiubo.Lee@...il.com
Cc:     fabio.estevam@....com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, Stefan Agner <stefan@...er.ch>
Subject: [PATCH] ASoC: fsl_asrc: protect macro argument

Protect macro argument with parentheses to avoid ambiguity.
This fixes a warning seen with clang:
  warning: logical not is only applied to the left hand side of this comparison

Signed-off-by: Stefan Agner <stefan@...er.ch>
---
 sound/soc/fsl/fsl_asrc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h
index 0f163abe4ba3..ec33dab4b909 100644
--- a/sound/soc/fsl/fsl_asrc.h
+++ b/sound/soc/fsl/fsl_asrc.h
@@ -57,7 +57,7 @@
 #define REG_ASRDOC			0x74
 #define REG_ASRDI(i)			(REG_ASRDIA + (i << 3))
 #define REG_ASRDO(i)			(REG_ASRDOA + (i << 3))
-#define REG_ASRDx(x, i)			(x == IN ? REG_ASRDI(i) : REG_ASRDO(i))
+#define REG_ASRDx(x, i)			((x) == IN ? REG_ASRDI(i) : REG_ASRDO(i))
 
 #define REG_ASRIDRHA			0x80
 #define REG_ASRIDRLA			0x84
-- 
2.13.3