[PATCH] common: avoid conflict with __bitwise and __force from linux/types.h

[Johannes Berg]

On Fri, 2017-09-15 at 14:37 +0200, Beniamino Galvani wrote:
> Namespace the __bitwise and __force macros so that they don't
> conflict
> with the ones from linux/types.h:
> 
>   In file included from ../src/l2_packet/l2_packet_linux.c:15:0:
>   hostap/src/utils/common.h:438:0: warning: "__bitwise" redefined
>    #define __bitwise
> 
>   In file included from /usr/include/linux/filter.h:9:0,
>                    from ../src/l2_packet/l2_packet_linux.c:13:
>   /usr/include/linux/types.h:21:0: note: this is the location of the
> previous definition
>    #define __bitwise __bitwise__

I think we can just #ifdef them because it's a compatible, if not
exactly identical, definition?

johannes