linux-kernel - Re: [PATCH v2 1/3] mm, printk: introduce new format string for flags

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Message-ID: <CAAG0J98vnEBq-vXtJcS6p9dvcsnyJpgR25zom238b8a20BKTEg@mail.gmail.com>
Date:	Thu, 10 Dec 2015 12:26:53 +0000
From:	James Hogan <james.hogan@...tec.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Vlastimil Babka <vbabka@...e.cz>, linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Minchan Kim <minchan@...nel.org>,
	Sasha Levin <sasha.levin@...cle.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...e.cz>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	metag <linux-metag@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] mm, printk: introduce new format string for flags

On 9 December 2015 at 11:29, Arnd Bergmann <arnd@...db.de> wrote:
> On Friday 04 December 2015 16:16:33 Vlastimil Babka wrote:
>> --- a/include/linux/mmdebug.h
>> +++ b/include/linux/mmdebug.h
>> @@ -2,15 +2,20 @@
>>  #define LINUX_MM_DEBUG_H 1
>>
>>  #include <linux/stringify.h>
>> +#include <linux/types.h>
>> +#include <linux/tracepoint.h>
>
> 8<-----
> Subject: mm: fix generated/bounds.h
>
> The inclusion of linux/tracepoint.h is causing build errors for me in ARM
> randconfig:
>
> In file included from /git/arm-soc/include/linux/ktime.h:25:0,
>                  from /git/arm-soc/include/linux/rcupdate.h:47,
>                  from /git/arm-soc/include/linux/tracepoint.h:19,
>                  from /git/arm-soc/include/linux/mmdebug.h:6,
>                  from /git/arm-soc/include/linux/page-flags.h:10,
>                  from /git/arm-soc/kernel/bounds.c:9:
> /git/arm-soc/include/linux/jiffies.h:10:33: fatal error: generated/timeconst.h: No such file or directory
> compilation terminated.
>
> To work around this, we can stop including linux/mmdebug.h from linux/page_flags.h
> while generating bounds.h, as we do for mm_types.h already.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: 8c0d593d0f8f ("mm, printk: introduce new format string for flags")
>
> diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
> index 19724e6ebd26..4efad0578a28 100644
> --- a/include/linux/page-flags.h
> +++ b/include/linux/page-flags.h
> @@ -7,8 +7,8 @@
>
>  #include <linux/types.h>
>  #include <linux/bug.h>
> -#include <linux/mmdebug.h>
>  #ifndef __GENERATING_BOUNDS_H
> +#include <linux/mmdebug.h>
>  #include <linux/mm_types.h>
>  #include <generated/bounds.h>
>  #endif /* !__GENERATING_BOUNDS_H */

Same build issue observed for metag too.
Tested-by: James Hogan <james.hogan@...tec.com>

Cheers
James
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