linux-next: build failure after merge of the akpm-current tree

From: Stephen Rothwell
Date: Mon Jun 05 2017 - 03:01:26 EST


Hi Andrew,

After merging the akpm-current tree, today's linux-next build (x86_64
allmodconfig) failed like this:

sound/pcmcia/pdaudiocf/pdaudiocf.o: warning: objtool: .text: unexpected end of section
arch/x86/ras/mce_amd_inj.o: warning: objtool: inj_readme_read() falls through to next function extcpu_fops_open()
sound/sound_core.o: warning: objtool: register_sound_special_device() falls through to next function register_sound_special()

and many more like those. Also:

In file included from /home/sfr/next/next/include/linux/bitmap.h:8:0,
from /home/sfr/next/next/include/linux/cpumask.h:11,
from /home/sfr/next/next/arch/x86/include/asm/cpumask.h:4,
from /home/sfr/next/next/arch/x86/include/asm/msr.h:10,
from /home/sfr/next/next/arch/x86/include/asm/processor.h:20,
from /home/sfr/next/next/arch/x86/include/asm/cpufeature.h:4,
from /home/sfr/next/next/arch/x86/include/asm/thread_info.h:52,
from /home/sfr/next/next/include/linux/thread_info.h:37,
from /home/sfr/next/next/arch/x86/include/asm/preempt.h:6,
from /home/sfr/next/next/include/linux/preempt.h:80,
from /home/sfr/next/next/include/linux/spinlock.h:50,
from /home/sfr/next/next/include/linux/mmzone.h:7,
from /home/sfr/next/next/include/linux/gfp.h:5,
from /home/sfr/next/next/arch/x86/power/hibernate_64.c:11:
In function 'memcpy',
inlined from 'relocate_restore_code' at /home/sfr/next/next/arch/x86/power/hibernate_64.c:150:2,
inlined from 'swsusp_arch_resume' at /home/sfr/next/next/arch/x86/power/hibernate_64.c:185:8:
/home/sfr/next/next/include/linux/string.h:309:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
__read_overflow2();
^

Caused by commit

088a5ecf7581 ("include/linux/string.h: add the option of fortified string.h functions")

We really need to fix all the known problems it detects *before*
merging this commit ...

I have reverted it for today.
--
Cheers,
Stephen Rothwell