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SubjectRe: [PATCH V3 01/16] block, bfq: introduce the BFQ-v0 I/O scheduler as an extra scheduler
Hi Paolo,

[auto build test ERROR on block/for-next]
[also build test ERROR on v4.11-rc6 next-20170412]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Paolo-Valente/Introduce-the-BFQ-I-O-scheduler/20170412-021320
base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sh

Note: the linux-review/Paolo-Valente/Introduce-the-BFQ-I-O-scheduler/20170412-021320 HEAD 36eb6533f8b6705991185201f75e98880cd223f7 builds fine.
It only hurts bisectibility.

All error/warnings (new ones prefixed by >>):

^~~~~~~~
block/bfq-iosched.c:4095:40: error: initializer element is not constant
__ATTR(name, 0644, bfq_##name##_show, bfq_##name##_store)
^
include/linux/sysfs.h:104:11: note: in definition of macro '__ATTR'
.store = _store, \
^~~~~~
block/bfq-iosched.c:4105:2: note: in expansion of macro 'BFQ_ATTR'
BFQ_ATTR(timeout_sync),
^~~~~~~~
block/bfq-iosched.c:4095:40: note: (near initialization for 'bfq_attrs[7].store')
__ATTR(name, 0644, bfq_##name##_show, bfq_##name##_store)
^
include/linux/sysfs.h:104:11: note: in definition of macro '__ATTR'
.store = _store, \
^~~~~~
block/bfq-iosched.c:4105:2: note: in expansion of macro 'BFQ_ATTR'
BFQ_ATTR(timeout_sync),
^~~~~~~~
block/bfq-iosched.c:4095:21: error: initializer element is not constant
__ATTR(name, 0644, bfq_##name##_show, bfq_##name##_store)
^
include/linux/sysfs.h:103:10: note: in definition of macro '__ATTR'
.show = _show, \
^~~~~
block/bfq-iosched.c:4106:2: note: in expansion of macro 'BFQ_ATTR'
BFQ_ATTR(strict_guarantees),
^~~~~~~~
block/bfq-iosched.c:4095:21: note: (near initialization for 'bfq_attrs[8].show')
__ATTR(name, 0644, bfq_##name##_show, bfq_##name##_store)
^
include/linux/sysfs.h:103:10: note: in definition of macro '__ATTR'
.show = _show, \
^~~~~
block/bfq-iosched.c:4106:2: note: in expansion of macro 'BFQ_ATTR'
BFQ_ATTR(strict_guarantees),
^~~~~~~~
block/bfq-iosched.c:4095:40: error: initializer element is not constant
__ATTR(name, 0644, bfq_##name##_show, bfq_##name##_store)
^
include/linux/sysfs.h:104:11: note: in definition of macro '__ATTR'
.store = _store, \
^~~~~~
block/bfq-iosched.c:4106:2: note: in expansion of macro 'BFQ_ATTR'
BFQ_ATTR(strict_guarantees),
^~~~~~~~
block/bfq-iosched.c:4095:40: note: (near initialization for 'bfq_attrs[8].store')
__ATTR(name, 0644, bfq_##name##_show, bfq_##name##_store)
^
include/linux/sysfs.h:104:11: note: in definition of macro '__ATTR'
.store = _store, \
^~~~~~
block/bfq-iosched.c:4106:2: note: in expansion of macro 'BFQ_ATTR'
BFQ_ATTR(strict_guarantees),
^~~~~~~~
block/bfq-iosched.c:4112:19: error: initializer element is not constant
.get_rq_priv = bfq_get_rq_private,
^~~~~~~~~~~~~~~~~~
block/bfq-iosched.c:4112:19: note: (near initialization for 'iosched_bfq_mq.ops.mq.get_rq_priv')
block/bfq-iosched.c:4113:19: error: initializer element is not constant
.put_rq_priv = bfq_put_rq_private,
^~~~~~~~~~~~~~~~~~
block/bfq-iosched.c:4113:19: note: (near initialization for 'iosched_bfq_mq.ops.mq.put_rq_priv')
block/bfq-iosched.c:4114:16: error: initializer element is not constant
.exit_icq = bfq_exit_icq,
^~~~~~~~~~~~
block/bfq-iosched.c:4114:16: note: (near initialization for 'iosched_bfq_mq.ops.mq.exit_icq')
block/bfq-iosched.c:4115:22: error: initializer element is not constant
.insert_requests = bfq_insert_requests,
^~~~~~~~~~~~~~~~~~~
block/bfq-iosched.c:4115:22: note: (near initialization for 'iosched_bfq_mq.ops.mq.insert_requests')
block/bfq-iosched.c:4116:23: error: initializer element is not constant
.dispatch_request = bfq_dispatch_request,
^~~~~~~~~~~~~~~~~~~~
block/bfq-iosched.c:4116:23: note: (near initialization for 'iosched_bfq_mq.ops.mq.dispatch_request')
block/bfq-iosched.c:4124:16: error: initializer element is not constant
.has_work = bfq_has_work,
^~~~~~~~~~~~
block/bfq-iosched.c:4124:16: note: (near initialization for 'iosched_bfq_mq.ops.mq.has_work')
block/bfq-iosched.c:4125:18: error: initializer element is not constant
.init_sched = bfq_init_queue,
^~~~~~~~~~~~~~
block/bfq-iosched.c:4125:18: note: (near initialization for 'iosched_bfq_mq.ops.mq.init_sched')
block/bfq-iosched.c:4126:18: error: initializer element is not constant
.exit_sched = bfq_exit_queue,
^~~~~~~~~~~~~~
block/bfq-iosched.c:4126:18: note: (near initialization for 'iosched_bfq_mq.ops.mq.exit_sched')
block/bfq-iosched.c:4137:19: error: invalid storage class for function 'bfq_init'
static int __init bfq_init(void)
^~~~~~~~
block/bfq-iosched.c:4155:20: error: invalid storage class for function 'bfq_exit'
static void __exit bfq_exit(void)
^~~~~~~~
In file included from block/bfq-iosched.c:90:0:
include/linux/module.h:129:42: error: invalid storage class for function '__inittest'
static inline initcall_t __maybe_unused __inittest(void) \
^
block/bfq-iosched.c:4161:1: note: in expansion of macro 'module_init'
module_init(bfq_init);
^~~~~~~~~~~
>> block/bfq-iosched.c:4161:1: warning: 'alias' attribute ignored [-Wattributes]
In file included from block/bfq-iosched.c:90:0:
include/linux/module.h:135:42: error: invalid storage class for function '__exittest'
static inline exitcall_t __maybe_unused __exittest(void) \
^
block/bfq-iosched.c:4162:1: note: in expansion of macro 'module_exit'
module_exit(bfq_exit);
^~~~~~~~~~~
>> include/linux/module.h:135:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
static inline exitcall_t __maybe_unused __exittest(void) \
^
block/bfq-iosched.c:4162:1: note: in expansion of macro 'module_exit'
module_exit(bfq_exit);
^~~~~~~~~~~
block/bfq-iosched.c:4162:1: warning: 'alias' attribute ignored [-Wattributes]
In file included from include/linux/module.h:18:0,
from block/bfq-iosched.c:90:
include/linux/moduleparam.h:21:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
static const char __UNIQUE_ID(name)[] \
^
include/linux/module.h:160:32: note: in expansion of macro '__MODULE_INFO'
#define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
^~~~~~~~~~~~~
include/linux/module.h:204:32: note: in expansion of macro 'MODULE_INFO'
#define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
^~~~~~~~~~~
block/bfq-iosched.c:4164:1: note: in expansion of macro 'MODULE_AUTHOR'
MODULE_AUTHOR("Paolo Valente");
^~~~~~~~~~~~~
>> block/bfq-iosched.c:4166:1: error: expected declaration or statement at end of input
MODULE_DESCRIPTION("MQ Budget Fair Queueing I/O Scheduler");
^~~~~~~~~~~~~~~~~~
block/bfq-iosched.c: At top level:
block/bfq-iosched.c:566:13: warning: 'bfq_check_ioprio_change' declared 'static' but never defined [-Wunused-function]
static void bfq_check_ioprio_change(struct bfq_io_cq *bic, struct bio *bio);
^~~~~~~~~~~~~~~~~~~~~~~
block/bfq-iosched.c:567:13: warning: 'bfq_put_queue' used but never defined
static void bfq_put_queue(struct bfq_queue *bfqq);
^~~~~~~~~~~~~
block/bfq-iosched.c:568:26: warning: 'bfq_get_queue' used but never defined
static struct bfq_queue *bfq_get_queue(struct bfq_data *bfqd,
^~~~~~~~~~~~~
block/bfq-iosched.c:571:13: warning: 'bfq_exit_bfqq' declared 'static' but never defined [-Wunused-function]
static void bfq_exit_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq);
^~~~~~~~~~~~~
block/bfq-iosched.c:1944:13: warning: 'bfq_bfqq_expire' used but never defined
static void bfq_bfqq_expire(struct bfq_data *bfqd,
^~~~~~~~~~~~~~~

vim +4166 block/bfq-iosched.c

4155 static void __exit bfq_exit(void)
4156 {
4157 elv_unregister(&iosched_bfq_mq);
4158 bfq_slab_kill();
4159 }
4160
> 4161 module_init(bfq_init);
4162 module_exit(bfq_exit);
4163
> 4164 MODULE_AUTHOR("Paolo Valente");
4165 MODULE_LICENSE("GPL");
> 4166 MODULE_DESCRIPTION("MQ Budget Fair Queueing I/O Scheduler");

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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