Subject: linux-next: build warning after merge of the vfs-fixes tree

From: Stephen Rothwell <[email-masked]>
Date: Tue, 22 Oct 2019 09:35:12 +1100

Hi all,

[Some people didn't get this due to a typo]

This should have been reported against the vfs-fixes tree, sorry.

On Tue, 22 Oct 2019 08:07:34 +1100 Stephen Rothwell <[email-masked]> wrote:
>
> After merging the drm-misc-fixes tree, today's linux-next build (powerpc
> ppc64_defconfig) produced this warning:
> 
> In file included from include/uapi/linux/posix_types.h:5,
>                  from include/uapi/linux/types.h:14,
>                  from include/linux/types.h:6,
>                  from include/linux/limits.h:6,
>                  from include/linux/kernel.h:7,
>                  from fs/aio.c:14:
> fs/aio.c: In function '__do_compat_sys_io_pgetevents':
> include/linux/stddef.h:8:14: warning: initialization of 'unsigned int' from 'void *' makes integer from pointer without a cast [-Wint-conversion]
>     8 | #define NULL ((void *)0)
>       |              ^
> fs/aio.c:2196:38: note: in expansion of macro 'NULL'
>  2196 |  struct __compat_aio_sigset ksig = { NULL, };
>       |                                      ^~~~
> include/linux/stddef.h:8:14: note: (near initialization for 'ksig.sigmask')
>     8 | #define NULL ((void *)0)
>       |              ^
> fs/aio.c:2196:38: note: in expansion of macro 'NULL'
>  2196 |  struct __compat_aio_sigset ksig = { NULL, };
>       |                                      ^~~~
> fs/aio.c: In function '__do_compat_sys_io_pgetevents_time64':
> include/linux/stddef.h:8:14: warning: initialization of 'unsigned int' from 'void *' makes integer from pointer without a cast [-Wint-conversion]
>     8 | #define NULL ((void *)0)
>       |              ^
> fs/aio.c:2231:38: note: in expansion of macro 'NULL'
>  2231 |  struct __compat_aio_sigset ksig = { NULL, };
>       |                                      ^~~~
> include/linux/stddef.h:8:14: note: (near initialization for 'ksig.sigmask')
>     8 | #define NULL ((void *)0)
>       |              ^
> fs/aio.c:2231:38: note: in expansion of macro 'NULL'
>  2231 |  struct __compat_aio_sigset ksig = { NULL, };
>       |                                      ^~~~
> 
> Introduced by commit
> 
>   de80166a573d ("aio: Fix io_pgetevents() struct __compat_aio_sigset layout")

-- 
Cheers,
Stephen Rothwell