[PATCH v2] mtd: brcmnand: Fix misuse of IS_ENABLED

[PATCH v2] mtd: brcmnand: Fix misuse of IS_ENABLED

[Axel Lin]

While IS_ENABLED() is perfectly fine for CONFIG_* symbols, it is not
for other symbols such as __BIG_ENDIAN that is provided directly by
the compiler.

Switch to use CONFIG_CPU_BIG_ENDIAN instead of __BIG_ENDIAN.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
v2:
Based on Florian's comment:
Switch to use CONFIG_CPU_BIG_ENDIAN instead of __BIG_ENDIAN.

 drivers/mtd/nand/brcmnand/brcmnand.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/brcmnand/brcmnand.h b/drivers/mtd/nand/brcmnand/brcmnand.h
index a20c736..169f99e 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.h
+++ b/drivers/mtd/nand/brcmnand/brcmnand.h
@@ -50,7 +50,7 @@ static inline u32 brcmnand_readl(void __iomem *addr)
 	 * Other architectures (e.g., ARM) either do not support big endian, or
 	 * else leave I/O in little endian mode.
 	 */
-	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
+	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
 		return __raw_readl(addr);
 	else
 		return readl_relaxed(addr);
@@ -59,7 +59,7 @@ static inline u32 brcmnand_readl(void __iomem *addr)
 static inline void brcmnand_writel(u32 val, void __iomem *addr)
 {
 	/* See brcmnand_readl() comments */
-	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
+	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
 		__raw_writel(val, addr);
 	else
 		writel_relaxed(val, addr);
-- 
2.1.0

Re: [PATCH v2] mtd: brcmnand: Fix misuse of IS_ENABLED

[Brian Norris]

On Thu, Aug 06, 2015 at 12:29:37PM +0800, Axel Lin wrote:
> While IS_ENABLED() is perfectly fine for CONFIG_* symbols, it is not
> for other symbols such as __BIG_ENDIAN that is provided directly by
> the compiler.
> 
> Switch to use CONFIG_CPU_BIG_ENDIAN instead of __BIG_ENDIAN.
> 
> Signed-off-by: Axel Lin <axel.lin@ingics.com>
> ---
> v2:
> Based on Florian's comment:
> Switch to use CONFIG_CPU_BIG_ENDIAN instead of __BIG_ENDIAN.

Applied to l2-mtd.git with:

Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")

Thanks,
Brian

>  drivers/mtd/nand/brcmnand/brcmnand.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mtd/nand/brcmnand/brcmnand.h b/drivers/mtd/nand/brcmnand/brcmnand.h
> index a20c736..169f99e 100644
> --- a/drivers/mtd/nand/brcmnand/brcmnand.h
> +++ b/drivers/mtd/nand/brcmnand/brcmnand.h
> @@ -50,7 +50,7 @@ static inline u32 brcmnand_readl(void __iomem *addr)
>  	 * Other architectures (e.g., ARM) either do not support big endian, or
>  	 * else leave I/O in little endian mode.
>  	 */
> -	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
> +	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
>  		return __raw_readl(addr);
>  	else
>  		return readl_relaxed(addr);
> @@ -59,7 +59,7 @@ static inline u32 brcmnand_readl(void __iomem *addr)
>  static inline void brcmnand_writel(u32 val, void __iomem *addr)
>  {
>  	/* See brcmnand_readl() comments */
> -	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
> +	if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
>  		__raw_writel(val, addr);
>  	else
>  		writel_relaxed(val, addr);
> -- 
> 2.1.0
> 
> 
>