[PATCH v3] arch: rename all internal names __xchg to __arch_xchg

[Heiko Carstens]

On Fri, Dec 30, 2022 at 03:15:52PM +0100, Andrzej Hajda wrote:
> __xchg will be used for non-atomic xchg macro.
> 
> Signed-off-by: Andrzej Hajda <andrzej.hajda at intel.com>
> Reviewed-by: Arnd Bergmann <arnd at arndb.de>
> ---
> v2: squashed all arch patches into one
> v3: fixed alpha/xchg_local, thx to lkp at intel.com
> ---
...
>  arch/s390/include/asm/cmpxchg.h      | 4 ++--
> diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
> index 84c3f0d576c5b1..efc16f4aac8643 100644
> --- a/arch/s390/include/asm/cmpxchg.h
> +++ b/arch/s390/include/asm/cmpxchg.h
> @@ -14,7 +14,7 @@
>  
>  void __xchg_called_with_bad_pointer(void);
>  
> -static __always_inline unsigned long __xchg(unsigned long x,
> +static __always_inline unsigned long __arch_xchg(unsigned long x,
>  					    unsigned long address, int size)

Please adjust the alignment of the second line.

> @@ -77,7 +77,7 @@ static __always_inline unsigned long __xchg(unsigned long x,
>  	__typeof__(*(ptr)) __ret;					\
>  									\
>  	__ret = (__typeof__(*(ptr)))					\
> -		__xchg((unsigned long)(x), (unsigned long)(ptr),	\
> +		__arch_xchg((unsigned long)(x), (unsigned long)(ptr),	\
>  		       sizeof(*(ptr)));					\

Same here.

The same is true for a couple of other architectures - not sure if
they care however.