Re: [PATCH] parisc: fix compilation errrors

[Guenter Roeck]

On Thu, Aug 15, 2019 at 04:53:05PM -0400, Qian Cai wrote:
> The commit 0cfaee2af3a0 ("include/asm-generic/5level-fixup.h: fix
> variable 'p4d' set but not used") converted a few functions from macros
> to static inline, which causes parisc to complain,
> 
> In file included from ./include/asm-generic/4level-fixup.h:38:0,
>                  from ./arch/parisc/include/asm/pgtable.h:5,
>                  from ./arch/parisc/include/asm/io.h:6,
>                  from ./include/linux/io.h:13,
>                  from sound/core/memory.c:9:
> ./include/asm-generic/5level-fixup.h:14:18: error: unknown type name
> 'pgd_t'; did you mean 'pid_t'?
>  #define p4d_t    pgd_t
>                   ^
> ./include/asm-generic/5level-fixup.h:24:28: note: in expansion of macro
> 'p4d_t'
>  static inline int p4d_none(p4d_t p4d)
>                             ^~~~~
> 
> It is because "4level-fixup.h" is included before "asm/page.h" where
> "pgd_t" is defined.
> 
> Fixes: 0cfaee2af3a0 ("include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used")
> Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> Signed-off-by: Qian Cai <cai@xxxxxx>

Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>