[mingo-tip:sched/headers 2375/2384] include/linux/device/driver.h:164:1: error: type defaults to 'int' in declaration of 'module_init'

From: kernel test robot
Date: Sat Jan 15 2022 - 22:38:57 EST

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tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
head: 4c707c1c0de83967079b4e385012fa5b00e2cd11
commit: fbd3e447670c4087ece6324134c77241b9c119b9 [2375/2384] headers/deps: RDMA: Optimize <rdma/ib_verbs.h> dependencies, remove <linux/dim.h> inclusion
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20220116/202201160854.9JuTmAwF-lkp@xxxxxxxxx/config)
compiler: sparc64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=fbd3e447670c4087ece6324134c77241b9c119b9
git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
git fetch --no-tags mingo-tip sched/headers
git checkout fbd3e447670c4087ece6324134c77241b9c119b9
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4460:1: warning: data definition has no type or storage class
4460 | MODULE_DEVICE_TABLE(of, hns_roce_of_match);
| ^~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4460:1: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE' [-Werror=implicit-int]
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4460:1: warning: parameter names (without types) in function declaration
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4466:1: warning: data definition has no type or storage class
4466 | MODULE_DEVICE_TABLE(acpi, hns_roce_acpi_match);
| ^~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4466:1: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE' [-Werror=implicit-int]
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4466:1: warning: parameter names (without types) in function declaration
In file included from include/linux/device_api.h:34,
from drivers/infiniband/hw/hns/hns_roce_hw_v1.c:46:
include/linux/device/driver.h:164:1: warning: data definition has no type or storage class
164 | module_init(__driver##_init); \
| ^~~~~~~~~~~
include/linux/platform_device.h:253:9: note: in expansion of macro 'module_driver'
253 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:1: note: in expansion of macro 'module_platform_driver'
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
>> include/linux/device/driver.h:164:1: error: type defaults to 'int' in declaration of 'module_init' [-Werror=implicit-int]
164 | module_init(__driver##_init); \
| ^~~~~~~~~~~
include/linux/platform_device.h:253:9: note: in expansion of macro 'module_driver'
253 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:1: note: in expansion of macro 'module_platform_driver'
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/linkage.h:7,
from include/linux/printk.h:7,
from include/asm-generic/bug.h:22,
from arch/sparc/include/asm/bug.h:25,
from include/linux/bug.h:5,
from include/linux/cpumask_types.h:12,
from include/linux/cpumask.h:5,
from include/linux/smp_api.h:12,
from include/linux/lockdep_api.h:27,
from include/linux/timer.h:5,
from include/linux/workqueue_types.h:9,
from include/linux/workqueue_api.h:10,
from drivers/infiniband/hw/hns/hns_roce_hw_v1.c:33:
include/linux/export.h:19:30: warning: parameter names (without types) in function declaration
19 | #define THIS_MODULE ((struct module *)0)
| ^~~~~~
include/linux/platform_device.h:223:41: note: in expansion of macro 'THIS_MODULE'
223 | __platform_driver_register(drv, THIS_MODULE)
| ^~~~~~~~~~~
include/linux/device/driver.h:162:16: note: in expansion of macro 'platform_driver_register'
162 | return __register(&(__driver) , ##__VA_ARGS__); \
| ^~~~~~~~~~
include/linux/platform_device.h:253:9: note: in expansion of macro 'module_driver'
253 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:1: note: in expansion of macro 'module_platform_driver'
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/device_api.h:34,
from drivers/infiniband/hw/hns/hns_roce_hw_v1.c:46:
include/linux/device/driver.h:169:1: warning: data definition has no type or storage class
169 | module_exit(__driver##_exit);
| ^~~~~~~~~~~
include/linux/platform_device.h:253:9: note: in expansion of macro 'module_driver'
253 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:1: note: in expansion of macro 'module_platform_driver'
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
>> include/linux/device/driver.h:169:1: error: type defaults to 'int' in declaration of 'module_exit' [-Werror=implicit-int]
169 | module_exit(__driver##_exit);
| ^~~~~~~~~~~
include/linux/platform_device.h:253:9: note: in expansion of macro 'module_driver'
253 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:1: note: in expansion of macro 'module_platform_driver'
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/linkage.h:7,
from include/linux/printk.h:7,
from include/asm-generic/bug.h:22,
from arch/sparc/include/asm/bug.h:25,
from include/linux/bug.h:5,
from include/linux/cpumask_types.h:12,
from include/linux/cpumask.h:5,
from include/linux/smp_api.h:12,
from include/linux/lockdep_api.h:27,
from include/linux/timer.h:5,
from include/linux/workqueue_types.h:9,
from include/linux/workqueue_api.h:10,
from drivers/infiniband/hw/hns/hns_roce_hw_v1.c:33:
include/linux/export.h:19:30: warning: parameter names (without types) in function declaration
19 | #define THIS_MODULE ((struct module *)0)
| ^~~~~~
include/linux/platform_device.h:223:41: note: in expansion of macro 'THIS_MODULE'
223 | __platform_driver_register(drv, THIS_MODULE)
| ^~~~~~~~~~~
include/linux/device/driver.h:162:16: note: in expansion of macro 'platform_driver_register'
162 | return __register(&(__driver) , ##__VA_ARGS__); \
| ^~~~~~~~~~
include/linux/platform_device.h:253:9: note: in expansion of macro 'module_driver'
253 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:1: note: in expansion of macro 'module_platform_driver'
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4688:16: error: expected declaration specifiers or '...' before string constant
4688 | MODULE_LICENSE("Dual BSD/GPL");
| ^~~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4689:15: error: expected declaration specifiers or '...' before string constant
4689 | MODULE_AUTHOR("Wei Hu <xavier.huwei@xxxxxxxxxx>");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4690:15: error: expected declaration specifiers or '...' before string constant
4690 | MODULE_AUTHOR("Nenglong Zhao <zhaonenglong@xxxxxxxxxxxxx>");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4691:15: error: expected declaration specifiers or '...' before string constant
4691 | MODULE_AUTHOR("Lijun Ou <oulijun@xxxxxxxxxx>");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4692:20: error: expected declaration specifiers or '...' before string constant
4692 | MODULE_DESCRIPTION("Hisilicon Hip06 Family RoCE Driver");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/device_api.h:34,
from drivers/infiniband/hw/hns/hns_roce_hw_v1.c:46:
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:24: warning: 'hns_roce_driver_init' defined but not used [-Wunused-function]
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~
include/linux/device/driver.h:160:19: note: in definition of macro 'module_driver'
160 | static int __init __driver##_init(void) \
| ^~~~~~~~
drivers/infiniband/hw/hns/hns_roce_hw_v1.c:4686:1: note: in expansion of macro 'module_platform_driver'
4686 | module_platform_driver(hns_roce_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +164 include/linux/device/driver.h

4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 144
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 145 /**
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 146 * module_driver() - Helper macro for drivers that don't do anything
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 147 * special in module init/exit. This eliminates a lot of boilerplate.
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 148 * Each module may only use this macro once, and calling it replaces
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 149 * module_init() and module_exit().
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 150 *
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 151 * @__driver: driver name
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 152 * @__register: register function for this driver type
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 153 * @__unregister: unregister function for this driver type
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 154 * @...: Additional arguments to be passed to __register and __unregister.
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 155 *
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 156 * Use this macro to construct bus specific macros for registering
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 157 * drivers, and do not use it on its own.
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 158 */
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 159 #define module_driver(__driver, __register, __unregister, ...) \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 160 static int __init __driver##_init(void) \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 161 { \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 162 return __register(&(__driver) , ##__VA_ARGS__); \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 163 } \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 @164 module_init(__driver##_init); \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 165 static void __exit __driver##_exit(void) \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 166 { \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 167 __unregister(&(__driver) , ##__VA_ARGS__); \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 168 } \
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 @169 module_exit(__driver##_exit);
4c002c978b7f2f Greg Kroah-Hartman 2019-12-09 170

:::::: The code at line 164 was first introduced by commit
:::::: 4c002c978b7f2f2306d53de051c054504af920a9 device.h: move 'struct driver' stuff out to device/driver.h

:::::: TO: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

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