linux-kernel - [PATCH] arm: remove references on undefined CPU

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Date:	Wed, 29 Apr 2015 15:53:55 +0200
From:	Valentin Rothberg <valentinrothberg@...il.com>
To:	kgene@...nel.org, linux@....linux.org.uk, sbkim73@...sung.com,
	lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
	tiwai@...e.de, linux-kernel@...r.kernel.org, pebolle@...cali.nl
Cc:	Valentin Rothberg <valentinrothberg@...il.com>
Subject: [PATCH] arm: remove references on undefined CPU_S3C2413

CPU_S3C2413 is not defined in Kconfig, so that all references on it turn
out to be 0.  Since CPU_S3C2412 supports both, S3C2412 and S3C2413 SoCs
from the S3C24XX line, we can safely remove all dead references on
CPU_S3C2413.

Signed-off-by: Valentin Rothberg <valentinrothberg@...il.com>
---
I detected this issue with scripts/checkkconfigsymbols.py

A very similar patch has already been proposed by Paul Bolle [1], but
has been left unanswered.

[1] https://lkml.org/lkml/2014/5/16/191
---
 arch/arm/mach-s3c24xx/common.c                  | 2 +-
 arch/arm/mach-s3c24xx/include/mach/regs-clock.h | 4 ++--
 arch/arm/plat-samsung/include/plat/map-s3c.h    | 2 +-
 sound/soc/samsung/s3c-i2s-v2.c                  | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c
index bf50328107bd..d6f4c260176d 100644
--- a/arch/arm/mach-s3c24xx/common.c
+++ b/arch/arm/mach-s3c24xx/common.c
@@ -172,7 +172,7 @@ static unsigned long s3c24xx_read_idcode_v5(void)
 		return gs;
 #endif
 
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#if defined(CONFIG_CPU_S3C2412)
 	return __raw_readl(S3C2412_GSTATUS1);
 #else
 	return 1UL;	/* don't look like an 2400 */
diff --git a/arch/arm/mach-s3c24xx/include/mach/regs-clock.h b/arch/arm/mach-s3c24xx/include/mach/regs-clock.h
index 3db6c10de023..ae4a3e0f3ba2 100644
--- a/arch/arm/mach-s3c24xx/include/mach/regs-clock.h
+++ b/arch/arm/mach-s3c24xx/include/mach/regs-clock.h
@@ -77,7 +77,7 @@
 
 #endif /* CONFIG_CPU_S3C2440 or CONFIG_CPU_S3C2442 */
 
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#if defined(CONFIG_CPU_S3C2412)
 
 #define S3C2412_OSCSET		S3C2410_CLKREG(0x18)
 #define S3C2412_CLKSRC		S3C2410_CLKREG(0x1C)
@@ -141,7 +141,7 @@
 #define S3C2412_CLKSRC_UREFCLK_EXTCLK	(1<<12)
 #define S3C2412_CLKSRC_EREFCLK_EXTCLK	(1<<14)
 
-#endif /* CONFIG_CPU_S3C2412 | CONFIG_CPU_S3C2413 */
+#endif /* CONFIG_CPU_S3C2412 */
 
 #define S3C2416_CLKDIV2		S3C2410_CLKREG(0x28)
 
diff --git a/arch/arm/plat-samsung/include/plat/map-s3c.h b/arch/arm/plat-samsung/include/plat/map-s3c.h
index c0c70a895ca8..612c2a71fffd 100644
--- a/arch/arm/plat-samsung/include/plat/map-s3c.h
+++ b/arch/arm/plat-samsung/include/plat/map-s3c.h
@@ -65,7 +65,7 @@
 
 /* deal with the registers that move under the 2412/2413 */
 
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+#if defined(CONFIG_CPU_S3C2412)
 #ifndef __ASSEMBLY__
 extern void __iomem *s3c24xx_va_gpio2;
 #endif
diff --git a/sound/soc/samsung/s3c-i2s-v2.c b/sound/soc/samsung/s3c-i2s-v2.c
index df65c5b494b1..c94f3ce9ed9f 100644
--- a/sound/soc/samsung/s3c-i2s-v2.c
+++ b/sound/soc/samsung/s3c-i2s-v2.c
@@ -28,8 +28,8 @@
 
 #undef S3C_IIS_V2_SUPPORTED
 
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413) \
-	|| defined(CONFIG_ARCH_S3C64XX) || defined(CONFIG_CPU_S5PV210)
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_ARCH_S3C64XX) \
+	defined(CONFIG_CPU_S5PV210)
 #define S3C_IIS_V2_SUPPORTED
 #endif
 
-- 
2.1.4

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