linux-kernel - Re: mm: provide reference to READ_IMPLIES

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Date:	Thu, 28 Jan 2016 06:38:52 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org,
	linux-mm@...ck.org, Konstantin Khlebnikov <koct9i@...il.com>
Subject: Re: mm: provide reference to READ_IMPLIES_EXEC

On Thu, Jan 28, 2016 at 02:41:03PM +0530, Sudip Mukherjee wrote:
> blackfin defconfig fails with the error:
> mm/internal.h: In function 'is_stack_mapping':
> arch/blackfin/include/asm/page.h:15:27: error: 'READ_IMPLIES_EXEC' undeclared
> 
> Commit 07dff8ae2bc5 has added is_stack_mapping in mm/internal.h but it
> also needs personality.h.
> 
> Fixes: 07dff8ae2bc5 ("mm: warn about VmData over RLIMIT_DATA")

FWIW, this is just one of many build failures due to this patch.
Pretty much all non-MMU builds fail, plus several MMU builds.
I had prepared a patch for mn10300, but gave up after I noticed
all the other failures.

Build results in next-20160128:
	total: 146 pass: 121 fail: 25
Failed builds:
	alpha:allmodconfig
	arm64:allnoconfig
	arm64:allmodconfig
	avr32:defconfig
	avr32:merisc_defconfig
	avr32:atngw100mkii_evklcd101_defconfig
	blackfin:defconfig
	blackfin:BF561-EZKIT-SMP_defconfig
	c6x:dsk6455_defconfig
	c6x:evmc6457_defconfig
	c6x:evmc6678_defconfig
	frv:defconfig
	ia64:defconfig
	ia64:allnoconfig
	m68k:allmodconfig
	microblaze:nommu_defconfig
	microblaze:allnoconfig
	mn10300:asb2303_defconfig
	mn10300:asb2364_defconfig
	parisc:allmodconfig
	powerpc:ppc6xx_defconfig
	s390:defconfig
	s390:allmodconfig
	s390:allnoconfig
	xtensa:allmodconfig
Qemu test results:
	total: 96 pass: 83 fail: 13
Failed tests:
	arm:kzm:imx_v6_v7_defconfig
	arm64:smp:defconfig
	arm64:nosmp:defconfig
	microblaze:microblaze_defconfig
	microblaze:microblazeel_defconfig
	powerpc:mac99:ppc_book3s_defconfig
	powerpc:mpc8544ds:mpc85xx_smp_defconfig
	powerpc:smp4:ppc64_book3s_defconfig
	powerpc:nosmp:ppc64_e5500_defconfig
	powerpc:smp:ppc64_e5500_defconfig
	s390:defconfig
	sparc64:sun4u:nosmp:sparc64_defconfig
	sparc64:sun4v:nosmp:sparc64_defconfig

Not all, but most of the failures are due to 07dff8ae2bc5.

Guenter