Hi all,

On Mon, 18 Oct 2021 18:15:59 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> After merging the kspp-gustavo tree, today's linux-next build (powerpc
> pseries_le_defconfig) failed like this:
> 
> In file included from include/linux/perf_event.h:49,
>                  from arch/powerpc/perf/callchain.c:9:
> include/linux/ftrace.h:49:41: error: 'struct ftrace_regs' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
>    49 |           struct ftrace_ops *op, struct ftrace_regs *fregs);
>       |                                         ^~~~~~~~~~~
> cc1: all warnings being treated as errors
> 
> (many of these)
> 
> Caused by commit
> 
>   c45ede6c2781 ("ftrace: Fix -Wmissing-prototypes errors")
> 
> I have added the following fixup for today.
> 
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Mon, 18 Oct 2021 17:56:30 +1100
> Subject: [PATCH] fixup for "ftrace: Fix -Wmissing-prototypes errors"
> 
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
>  include/linux/ftrace.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
> index 871b51bec170..ada656c6824d 100644
> --- a/include/linux/ftrace.h
> +++ b/include/linux/ftrace.h
> @@ -45,6 +45,7 @@ struct ftrace_ops;
>  void arch_ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip);
>  #else
>  # define FTRACE_FORCE_LIST_FUNC 0
> +struct ftrace_regs;
>  void arch_ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
>  			       struct ftrace_ops *op, struct ftrace_regs *fregs);
>  #endif
> -- 
> 2.33.0

I am still applying this fix ...

-- 
Cheers,
Stephen Rothwell