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Date: Thu, 1 Mar 2018 17:28:03 +0800
From: kbuild test robot <lkp@...el.com>
To: Or Idgar <idgar@...tualoco.com>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org, arnd@...db.de,
gregkh@...uxfoundation.org, oidgar@...hat.com,
idgar@...tualoco.com, ghammer@...hat.com,
Or Idgar <oridgar@...il.com>
Subject: Re: [PATCH v2] drivers/virt: vm_gen_counter: initial driver
implementation
Hi Or,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on v4.16-rc3 next-20180228]
[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/Or-Idgar/drivers-virt-vm_gen_counter-initial-driver-implementation/20180227-050111
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/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
All errors (new ones prefixed by >>):
drivers/misc/vmgenid.c: In function 'acpi_vmgenid_add':
>> drivers/misc/vmgenid.c:102:29: error: dereferencing pointer to incomplete type 'struct acpi_device'
retval = get_vmgenid(device->handle);
^~
drivers/misc/vmgenid.c: At top level:
>> drivers/misc/vmgenid.c:114:36: error: array type has incomplete element type 'struct acpi_device_id'
static const struct acpi_device_id vmgenid_ids[] = {
^~~~~~~~~~~
>> drivers/misc/vmgenid.c:119:15: error: variable 'acpi_vmgenid_driver' has initializer but incomplete type
static struct acpi_driver acpi_vmgenid_driver = {
^~~~~~~~~~~
>> drivers/misc/vmgenid.c:120:3: error: 'struct acpi_driver' has no member named 'name'
.name = "vm_gen_counter",
^~~~
drivers/misc/vmgenid.c:120:10: warning: excess elements in struct initializer
.name = "vm_gen_counter",
^~~~~~~~~~~~~~~~
drivers/misc/vmgenid.c:120:10: note: (near initialization for 'acpi_vmgenid_driver')
>> drivers/misc/vmgenid.c:121:3: error: 'struct acpi_driver' has no member named 'ids'
.ids = vmgenid_ids,
^~~
drivers/misc/vmgenid.c:121:9: warning: excess elements in struct initializer
.ids = vmgenid_ids,
^~~~~~~~~~~
drivers/misc/vmgenid.c:121:9: note: (near initialization for 'acpi_vmgenid_driver')
>> drivers/misc/vmgenid.c:122:3: error: 'struct acpi_driver' has no member named 'owner'
.owner = THIS_MODULE,
^~~~~
In file included from include/linux/linkage.h:7:0,
from include/linux/kernel.h:7,
from include/linux/list.h:9,
from include/linux/module.h:9,
from drivers/misc/vmgenid.c:12:
include/linux/export.h:35:21: warning: excess elements in struct initializer
#define THIS_MODULE (&__this_module)
^
drivers/misc/vmgenid.c:122:11: note: in expansion of macro 'THIS_MODULE'
.owner = THIS_MODULE,
^~~~~~~~~~~
include/linux/export.h:35:21: note: (near initialization for 'acpi_vmgenid_driver')
#define THIS_MODULE (&__this_module)
^
drivers/misc/vmgenid.c:122:11: note: in expansion of macro 'THIS_MODULE'
.owner = THIS_MODULE,
^~~~~~~~~~~
>> drivers/misc/vmgenid.c:123:3: error: 'struct acpi_driver' has no member named 'ops'
.ops = {
^~~
>> drivers/misc/vmgenid.c:123:9: error: extra brace group at end of initializer
.ops = {
^
drivers/misc/vmgenid.c:123:9: note: (near initialization for 'acpi_vmgenid_driver')
drivers/misc/vmgenid.c:123:9: warning: excess elements in struct initializer
drivers/misc/vmgenid.c:123:9: note: (near initialization for 'acpi_vmgenid_driver')
drivers/misc/vmgenid.c: In function 'vmgenid_init':
>> drivers/misc/vmgenid.c:131:9: error: implicit declaration of function 'acpi_bus_register_driver'; did you mean 'acpi_nvs_register'? [-Werror=implicit-function-declaration]
return acpi_bus_register_driver(&acpi_vmgenid_driver);
^~~~~~~~~~~~~~~~~~~~~~~~
acpi_nvs_register
drivers/misc/vmgenid.c: In function 'vmgenid_exit':
>> drivers/misc/vmgenid.c:136:2: error: implicit declaration of function 'acpi_bus_unregister_driver'; did you mean 'bus_unregister_notifier'? [-Werror=implicit-function-declaration]
acpi_bus_unregister_driver(&acpi_vmgenid_driver);
^~~~~~~~~~~~~~~~~~~~~~~~~~
bus_unregister_notifier
drivers/misc/vmgenid.c: At top level:
>> drivers/misc/vmgenid.c:119:27: error: storage size of 'acpi_vmgenid_driver' isn't known
static struct acpi_driver acpi_vmgenid_driver = {
^~~~~~~~~~~~~~~~~~~
drivers/misc/vmgenid.c:114:36: warning: 'vmgenid_ids' defined but not used [-Wunused-variable]
static const struct acpi_device_id vmgenid_ids[] = {
^~~~~~~~~~~
cc1: some warnings being treated as errors
vim +102 drivers/misc/vmgenid.c
95
96 static int acpi_vmgenid_add(struct acpi_device *device)
97 {
98 int retval;
99
100 if (!device)
101 return -EINVAL;
> 102 retval = get_vmgenid(device->handle);
103 if (retval < 0)
104 return retval;
105 return sysfs_create_group(hypervisor_kobj, &vmgenid_group);
106 }
107
108 static int acpi_vmgenid_remove(struct acpi_device *device)
109 {
110 sysfs_remove_group(hypervisor_kobj, &vmgenid_group);
111 return 0;
112 }
113
> 114 static const struct acpi_device_id vmgenid_ids[] = {
115 {"QEMUVGID", 0},
116 {"", 0},
117 };
118
> 119 static struct acpi_driver acpi_vmgenid_driver = {
> 120 .name = "vm_gen_counter",
> 121 .ids = vmgenid_ids,
> 122 .owner = THIS_MODULE,
> 123 .ops = {
124 .add = acpi_vmgenid_add,
125 .remove = acpi_vmgenid_remove,
126 }
127 };
128
129 static int __init vmgenid_init(void)
130 {
> 131 return acpi_bus_register_driver(&acpi_vmgenid_driver);
132 }
133
134 static void __exit vmgenid_exit(void)
135 {
> 136 acpi_bus_unregister_driver(&acpi_vmgenid_driver);
137 }
138
---
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