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List: dm-devel
Subject: [dm-devel] [dm:block-dm-4.21-inflight 6/9] drivers//md/dm.c:655:19: note: in expansion of macro 'per
From: kbuild test robot <lkp () intel ! com>
Date: 2018-11-30 20:36:24
Message-ID: 201812010420.1sCStoFp%fengguang.wu () intel ! com
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git \
block-dm-4.21-inflight
head: 43ffa903230b8656a88fdc38882153a765076972
commit: 335b41c7513110b1519d8a93d412c138bf671263 [6/9] dm: remove the pending IO \
accounting
config: i386-randconfig-x001-201847 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 335b41c7513110b1519d8a93d412c138bf671263
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new ones prefixed by >>):
In file included from include/linux/genhd.h:20:0,
from include/linux/blkdev.h:11,
from include/linux/blk-mq.h:5,
from drivers//md/dm-core.h:14,
from drivers//md/dm.c:8:
drivers//md/dm.c: In function 'md_in_flight':
include/linux/percpu-defs.h:219:52: error: invalid operands to binary + (have \
'struct disk_stats' and 'int') const void __percpu *__vpp_verify = (typeof((ptr) + \
0))NULL; \ ~~~~~ ^
arch/x86/include/asm/local.h:16:42: note: in definition of macro 'local_read'
#define local_read(l) atomic_long_read(&(l)->a)
^
include/linux/percpu-defs.h:259:2: note: in expansion of macro '__verify_pcpu_ptr'
__verify_pcpu_ptr(__p); \
^~~~~~~~~~~~~~~~~
include/linux/percpu-defs.h:263:47: note: in expansion of macro \
'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); \
VERIFY_PERCPU_PTR(ptr); }) ^~~~~~~~~~~~~~~~~
> > drivers//md/dm.c:655:19: note: in expansion of macro 'per_cpu_ptr'
if (local_read(&per_cpu_ptr(part->dkstats, cpu)->in_flight[0]) ||
^~~~~~~~~~~
include/linux/percpu-defs.h:260:10: error: invalid type argument of unary '*' \
(have 'struct disk_stats') (typeof(*(__p)) __kernel __force *)(__p); \
^~~~~~
arch/x86/include/asm/local.h:16:42: note: in definition of macro 'local_read'
#define local_read(l) atomic_long_read(&(l)->a)
^
include/linux/percpu-defs.h:263:47: note: in expansion of macro \
'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); \
VERIFY_PERCPU_PTR(ptr); }) ^~~~~~~~~~~~~~~~~
> > drivers//md/dm.c:655:19: note: in expansion of macro 'per_cpu_ptr'
if (local_read(&per_cpu_ptr(part->dkstats, cpu)->in_flight[0]) ||
^~~~~~~~~~~
include/linux/percpu-defs.h:219:52: error: invalid operands to binary + (have \
'struct disk_stats' and 'int') const void __percpu *__vpp_verify = (typeof((ptr) + \
0))NULL; \ ~~~~~ ^
arch/x86/include/asm/local.h:16:42: note: in definition of macro 'local_read'
#define local_read(l) atomic_long_read(&(l)->a)
^
include/linux/percpu-defs.h:259:2: note: in expansion of macro '__verify_pcpu_ptr'
__verify_pcpu_ptr(__p); \
^~~~~~~~~~~~~~~~~
include/linux/percpu-defs.h:263:47: note: in expansion of macro \
'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); \
VERIFY_PERCPU_PTR(ptr); }) ^~~~~~~~~~~~~~~~~
drivers//md/dm.c:656:19: note: in expansion of macro 'per_cpu_ptr'
local_read(&per_cpu_ptr(part->dkstats, cpu)->in_flight[1]))
^~~~~~~~~~~
include/linux/percpu-defs.h:260:10: error: invalid type argument of unary '*' \
(have 'struct disk_stats') (typeof(*(__p)) __kernel __force *)(__p); \
^~~~~~
arch/x86/include/asm/local.h:16:42: note: in definition of macro 'local_read'
#define local_read(l) atomic_long_read(&(l)->a)
^
include/linux/percpu-defs.h:263:47: note: in expansion of macro \
'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); \
VERIFY_PERCPU_PTR(ptr); }) ^~~~~~~~~~~~~~~~~
drivers//md/dm.c:656:19: note: in expansion of macro 'per_cpu_ptr'
local_read(&per_cpu_ptr(part->dkstats, cpu)->in_flight[1]))
^~~~~~~~~~~
vim +/per_cpu_ptr +655 drivers//md/dm.c
648
649 static bool md_in_flight(struct mapped_device *md)
650 {
651 int cpu;
652 struct hd_struct *part = &dm_disk(md)->part0;
653
654 for_each_possible_cpu(cpu) {
> 655 if (local_read(&per_cpu_ptr(part->dkstats, cpu)->in_flight[0]) ||
656 local_read(&per_cpu_ptr(part->dkstats, cpu)->in_flight[1]))
657 return true;
658 }
659
660 return false;
661 }
662
---
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[".config.gz" (application/gzip)]
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