[lkml]   [2020]   [Mar]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subjectlinux-next: build warning after merge of the akpm-current tree
Hi all,

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

mm/kasan/common.o: warning: objtool: kasan_report()+0x17: call to report_enabled() with UACCESS enabled
In file included from include/linux/bitmap.h:9,
from include/linux/cpumask.h:12,
from arch/x86/include/asm/paravirt.h:17,
from arch/x86/include/asm/irqflags.h:72,
from include/linux/irqflags.h:16,
from include/linux/rcupdate.h:26,
from include/linux/rculist.h:11,
from include/linux/pid.h:5,
from include/linux/sched.h:14,
from include/linux/uaccess.h:6,
from arch/x86/include/asm/fpu/xstate.h:5,
from arch/x86/include/asm/pgtable.h:26,
from include/linux/kasan.h:15,
from lib/test_kasan.c:12:
In function 'memmove',
inlined from 'kmalloc_memmove_invalid_size' at lib/test_kasan.c:301:2:
include/linux/string.h:441:9: warning: '__builtin_memmove' specified bound 18446744073709551614 exceeds maximum object size 9223372036854775807 [-Wstringop-overflow=]
441 | return __builtin_memmove(p, q, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Introduced by commit

519e500fac64 ("kasan: add test for invalid size in memmove")

That's a bit annoying during a normal x86_64 allmodconfig build ...

Stephen Rothwell
[unhandled content-type:application/pgp-signature]
 \ /
  Last update: 2020-03-05 06:38    [W:0.103 / U:1.488 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site