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Date: Sun, 15 Oct 2017 18:53:21 +0800
From: kbuild test robot <lkp@...el.com>
To: Bhumika Goyal <bhumirks@...il.com>
Cc: kbuild-all@...org, julia.lawall@...6.fr, kishon@...com,
bhelgaas@...gle.com, linux-pci@...r.kernel.org,
linux-kernel@...r.kernel.org, Bhumika Goyal <bhumirks@...il.com>
Subject: Re: [PATCH] PCI: endpoint: make config_item_type const
Hi Bhumika,
[auto build test WARNING on pci/next]
[also build test WARNING on v4.14-rc4 next-20171013]
[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/Bhumika-Goyal/PCI-endpoint-make-config_item_type-const/20171015-175843
base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: i386-randconfig-s1-201742+CONFIG_DEBUG_INFO_REDUCED (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new ones prefixed by >>):
drivers/pci/endpoint/pci-ep-cfs.c: In function 'pci_ep_cfs_add_epc_group':
>> drivers/pci/endpoint/pci-ep-cfs.c:174:43: warning: passing argument 3 of 'config_group_init_type_name' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
config_group_init_type_name(group, name, &pci_epc_type);
^
In file included from include/linux/pci-ep-cfs.h:15:0,
from drivers/pci/endpoint/pci-ep-cfs.c:25:
include/linux/configfs.h:102:13: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
extern void config_group_init_type_name(struct config_group *group,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/endpoint/pci-ep-cfs.c: In function 'pci_epf_make':
drivers/pci/endpoint/pci-ep-cfs.c:380:55: warning: passing argument 3 of 'config_group_init_type_name' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
config_group_init_type_name(&epf_group->group, name, &pci_epf_type);
^
In file included from include/linux/pci-ep-cfs.h:15:0,
from drivers/pci/endpoint/pci-ep-cfs.c:25:
include/linux/configfs.h:102:13: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
extern void config_group_init_type_name(struct config_group *group,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/endpoint/pci-ep-cfs.c: In function 'pci_ep_cfs_add_epf_group':
>> drivers/pci/endpoint/pci-ep-cfs.c:413:7: warning: passing argument 3 of 'configfs_register_default_group' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
&pci_epf_group_type);
^
In file included from include/linux/pci-ep-cfs.h:15:0,
from drivers/pci/endpoint/pci-ep-cfs.c:25:
include/linux/configfs.h:262:1: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
configfs_register_default_group(struct config_group *parent_group,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/endpoint/pci-ep-cfs.c: At top level:
>> drivers/pci/endpoint/pci-ep-cfs.c:447:15: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
.ci_type = &pci_ep_type,
^
drivers/pci/endpoint/pci-ep-cfs.c: In function 'pci_ep_cfs_init':
drivers/pci/endpoint/pci-ep-cfs.c:468:10: warning: passing argument 3 of 'configfs_register_default_group' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
&pci_functions_type);
^
In file included from include/linux/pci-ep-cfs.h:15:0,
from drivers/pci/endpoint/pci-ep-cfs.c:25:
include/linux/configfs.h:262:1: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
configfs_register_default_group(struct config_group *parent_group,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/endpoint/pci-ep-cfs.c:478:7: warning: passing argument 3 of 'configfs_register_default_group' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
&pci_controllers_type);
^
In file included from include/linux/pci-ep-cfs.h:15:0,
from drivers/pci/endpoint/pci-ep-cfs.c:25:
include/linux/configfs.h:262:1: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
configfs_register_default_group(struct config_group *parent_group,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +174 drivers/pci/endpoint/pci-ep-cfs.c
d7467991 Kishon Vijay Abraham I 2017-03-27 158
d7467991 Kishon Vijay Abraham I 2017-03-27 159 struct config_group *pci_ep_cfs_add_epc_group(const char *name)
d7467991 Kishon Vijay Abraham I 2017-03-27 160 {
d7467991 Kishon Vijay Abraham I 2017-03-27 161 int ret;
d7467991 Kishon Vijay Abraham I 2017-03-27 162 struct pci_epc *epc;
d7467991 Kishon Vijay Abraham I 2017-03-27 163 struct config_group *group;
d7467991 Kishon Vijay Abraham I 2017-03-27 164 struct pci_epc_group *epc_group;
d7467991 Kishon Vijay Abraham I 2017-03-27 165
d7467991 Kishon Vijay Abraham I 2017-03-27 166 epc_group = kzalloc(sizeof(*epc_group), GFP_KERNEL);
d7467991 Kishon Vijay Abraham I 2017-03-27 167 if (!epc_group) {
d7467991 Kishon Vijay Abraham I 2017-03-27 168 ret = -ENOMEM;
d7467991 Kishon Vijay Abraham I 2017-03-27 169 goto err;
d7467991 Kishon Vijay Abraham I 2017-03-27 170 }
d7467991 Kishon Vijay Abraham I 2017-03-27 171
d7467991 Kishon Vijay Abraham I 2017-03-27 172 group = &epc_group->group;
d7467991 Kishon Vijay Abraham I 2017-03-27 173
d7467991 Kishon Vijay Abraham I 2017-03-27 @174 config_group_init_type_name(group, name, &pci_epc_type);
d7467991 Kishon Vijay Abraham I 2017-03-27 175 ret = configfs_register_group(controllers_group, group);
d7467991 Kishon Vijay Abraham I 2017-03-27 176 if (ret) {
d7467991 Kishon Vijay Abraham I 2017-03-27 177 pr_err("failed to register configfs group for %s\n", name);
d7467991 Kishon Vijay Abraham I 2017-03-27 178 goto err_register_group;
d7467991 Kishon Vijay Abraham I 2017-03-27 179 }
d7467991 Kishon Vijay Abraham I 2017-03-27 180
d7467991 Kishon Vijay Abraham I 2017-03-27 181 epc = pci_epc_get(name);
d7467991 Kishon Vijay Abraham I 2017-03-27 182 if (IS_ERR(epc)) {
d7467991 Kishon Vijay Abraham I 2017-03-27 183 ret = PTR_ERR(epc);
d7467991 Kishon Vijay Abraham I 2017-03-27 184 goto err_epc_get;
d7467991 Kishon Vijay Abraham I 2017-03-27 185 }
d7467991 Kishon Vijay Abraham I 2017-03-27 186
d7467991 Kishon Vijay Abraham I 2017-03-27 187 epc_group->epc = epc;
d7467991 Kishon Vijay Abraham I 2017-03-27 188
d7467991 Kishon Vijay Abraham I 2017-03-27 189 return group;
d7467991 Kishon Vijay Abraham I 2017-03-27 190
d7467991 Kishon Vijay Abraham I 2017-03-27 191 err_epc_get:
d7467991 Kishon Vijay Abraham I 2017-03-27 192 configfs_unregister_group(group);
d7467991 Kishon Vijay Abraham I 2017-03-27 193
d7467991 Kishon Vijay Abraham I 2017-03-27 194 err_register_group:
d7467991 Kishon Vijay Abraham I 2017-03-27 195 kfree(epc_group);
d7467991 Kishon Vijay Abraham I 2017-03-27 196
d7467991 Kishon Vijay Abraham I 2017-03-27 197 err:
d7467991 Kishon Vijay Abraham I 2017-03-27 198 return ERR_PTR(ret);
d7467991 Kishon Vijay Abraham I 2017-03-27 199 }
d7467991 Kishon Vijay Abraham I 2017-03-27 200 EXPORT_SYMBOL(pci_ep_cfs_add_epc_group);
d7467991 Kishon Vijay Abraham I 2017-03-27 201
:::::: The code at line 174 was first introduced by commit
:::::: d746799116103d857be203382b09035bbe225d03 PCI: endpoint: Introduce configfs entry for configuring EP functions
:::::: TO: Kishon Vijay Abraham I <kishon@...com>
:::::: CC: Bjorn Helgaas <bhelgaas@...gle.com>
---
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