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Date:	Mon, 28 Jul 2014 13:58:59 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: linux-next: build failure after merge of the modules tree

Hi Rusty,

After merging the modules tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

In file included from include/linux/thread_info.h:11:0,
                 from arch/powerpc/include/asm/ptrace.h:151,
                 from arch/powerpc/include/asm/processor.h:44,
                 from arch/powerpc/include/asm/mmu-hash64.h:25,
                 from arch/powerpc/include/asm/mmu.h:189,
                 from arch/powerpc/include/asm/lppaca.h:36,
                 from arch/powerpc/include/asm/paca.h:20,
                 from arch/powerpc/include/asm/current.h:16,
                 from include/linux/mutex.h:13,
                 from include/linux/kernfs.h:13,
                 from include/linux/sysfs.h:15,
                 from include/linux/kobject.h:21,
                 from include/linux/of.h:21,
                 from arch/powerpc/platforms/powernv/opal-elog.c:13:
include/linux/bug.h:33:45: error: negative width in bit-field '<anonymous>'
 #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
                                             ^
include/linux/kernel.h:853:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
   BUILD_BUG_ON_ZERO((perms) & 2) +    \
   ^
include/linux/sysfs.h:75:12: note: in expansion of macro 'VERIFY_OCTAL_PERMISSIONS'
    .mode = VERIFY_OCTAL_PERMISSIONS(_mode) },  \
            ^
arch/powerpc/platforms/powernv/opal-elog.c:85:2: note: in expansion of macro '__ATTR'
  __ATTR(id, 0666, elog_id_show, NULL);
  ^
include/linux/bug.h:33:45: error: negative width in bit-field '<anonymous>'
 #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
                                             ^
include/linux/kernel.h:853:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
   BUILD_BUG_ON_ZERO((perms) & 2) +    \
   ^
include/linux/sysfs.h:75:12: note: in expansion of macro 'VERIFY_OCTAL_PERMISSIONS'
    .mode = VERIFY_OCTAL_PERMISSIONS(_mode) },  \
            ^
arch/powerpc/platforms/powernv/opal-elog.c:87:2: note: in expansion of macro '__ATTR'
  __ATTR(type, 0666, elog_type_show, NULL);
  ^
In file included from include/linux/thread_info.h:11:0,
                 from arch/powerpc/include/asm/ptrace.h:151,
                 from arch/powerpc/include/asm/processor.h:44,
                 from arch/powerpc/include/asm/mmu-hash64.h:25,
                 from arch/powerpc/include/asm/mmu.h:189,
                 from arch/powerpc/include/asm/lppaca.h:36,
                 from arch/powerpc/include/asm/paca.h:20,
                 from arch/powerpc/include/asm/current.h:16,
                 from include/linux/mutex.h:13,
                 from include/linux/kernfs.h:13,
                 from include/linux/sysfs.h:15,
                 from include/linux/kobject.h:21,
                 from arch/powerpc/platforms/powernv/opal-dump.c:12:
include/linux/bug.h:33:45: error: negative width in bit-field '<anonymous>'
 #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
                                             ^
include/linux/kernel.h:853:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
   BUILD_BUG_ON_ZERO((perms) & 2) +    \
   ^
include/linux/sysfs.h:75:12: note: in expansion of macro 'VERIFY_OCTAL_PERMISSIONS'
    .mode = VERIFY_OCTAL_PERMISSIONS(_mode) },  \
            ^
arch/powerpc/platforms/powernv/opal-dump.c:105:2: note: in expansion of macro '__ATTR'
  __ATTR(id, 0666, dump_id_show, NULL);
  ^
include/linux/bug.h:33:45: error: negative width in bit-field '<anonymous>'
 #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
                                             ^
include/linux/kernel.h:853:3: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
   BUILD_BUG_ON_ZERO((perms) & 2) +    \
   ^
include/linux/sysfs.h:75:12: note: in expansion of macro 'VERIFY_OCTAL_PERMISSIONS'
    .mode = VERIFY_OCTAL_PERMISSIONS(_mode) },  \
            ^
arch/powerpc/platforms/powernv/opal-dump.c:107:2: note: in expansion of macro '__ATTR'
  __ATTR(type, 0666, dump_type_show, NULL);
  ^

Caused by commit 37549e94c77a ("sysfs: disallow world-writable files")
interacting with commit c7e64b9ce04a ("powerpc/powernv Platform dump
interface") from v3.15-rc1.  I guess this patch needs updating ...

I have used the modules tree form next-20140725 for today.
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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