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Message-ID: <YWl+0PFixaNqgIxb@smile.fi.intel.com>
Date:   Fri, 15 Oct 2021 16:14:56 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the akpm-current tree

+Cc: Rasmus

On Fri, Oct 15, 2021 at 08:29:08PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the akpm-current tree, today's linux-next build (arm
> multi_v7_defconfig) failed like this:
> 
> In file included from include/linux/rcupdate.h:28,
>                  from include/linux/rculist.h:11,
>                  from include/linux/pid.h:5,
>                  from include/linux/sched.h:14,
>                  from arch/arm/kernel/asm-offsets.c:11:
> include/linux/bottom_half.h: In function 'local_bh_disable':
> include/linux/bottom_half.h:19:24: error: '_THIS_IP_' undeclared (first use in this function)
>    19 |  __local_bh_disable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
>       |                        ^~~~~~~~~
> include/linux/bottom_half.h:19:24: note: each undeclared identifier is reported only once for each function it appears in
> include/linux/bottom_half.h: In function 'local_bh_enable':
> include/linux/bottom_half.h:32:23: error: '_THIS_IP_' undeclared (first use in this function)
>    32 |  __local_bh_enable_ip(_THIS_IP_, SOFTIRQ_DISABLE_OFFSET);
>       |                       ^~~~~~~~~
> 
> Presumably caused by a commit in the series that starts with
> 
>   dcaf7a5f413b ("kernel.h: drop unneeded <linux/kernel.h> inclusion from other headers")
> 
> I have applied the following patch for today (though there may be a
> better solution).

Thanks! As a quick fix looks good, but I think we need a separate header for
those _*_IP_ macros.

> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Fri, 15 Oct 2021 19:58:46 +1100
> Subject: [PATCH] bottom_half.h needs kernel.h
> 
> for _THIS_IP_ on arm at least
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  include/linux/bottom_half.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/bottom_half.h b/include/linux/bottom_half.h
> index eed86eb0a1de..11d107d88d03 100644
> --- a/include/linux/bottom_half.h
> +++ b/include/linux/bottom_half.h
> @@ -2,6 +2,7 @@
>  #ifndef _LINUX_BH_H
>  #define _LINUX_BH_H
>  
> +#include <linux/kernel.h>
>  #include <linux/preempt.h>
>  
>  #if defined(CONFIG_PREEMPT_RT) || defined(CONFIG_TRACE_IRQFLAGS)

-- 
With Best Regards,
Andy Shevchenko


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