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SubjectRe: [PATCH] ocfs2/cluster: make config_item_type const
Hi Bhumika,

[auto build test WARNING on linus/master]
[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/ocfs2-cluster-make-config_item_type-const/20171014-185701
config: tile-allyesconfig (attached as .config)
compiler: tilegx-linux-gcc (GCC) 4.6.2
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=tile

All warnings (new ones prefixed by >>):

fs/ocfs2/cluster/nodemanager.c: In function 'o2nm_node_group_make_item':
fs/ocfs2/cluster/nodemanager.c:573:2: warning: passing argument 3 of 'config_item_init_type_name' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:73:13: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
fs/ocfs2/cluster/nodemanager.c: In function 'o2nm_cluster_group_make_group':
fs/ocfs2/cluster/nodemanager.c:681:9: warning: passing argument 3 of 'config_group_init_type_name' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:102:13: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
fs/ocfs2/cluster/nodemanager.c:685:9: warning: passing argument 3 of 'config_group_init_type_name' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:102:13: note: expected 'struct config_item_type *' but argument is of type 'const struct config_item_type *'
fs/ocfs2/cluster/nodemanager.c: In function 'o2nm_depend_item':
fs/ocfs2/cluster/nodemanager.c:743:2: warning: passing argument 1 of 'configfs_depend_item' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:269:5: note: expected 'struct configfs_subsystem *' but argument is of type 'const struct configfs_subsystem *'
fs/ocfs2/cluster/nodemanager.c: In function 'exit_o2nm':
fs/ocfs2/cluster/nodemanager.c:785:2: warning: passing argument 1 of 'configfs_unregister_subsystem' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:253:6: note: expected 'struct configfs_subsystem *' but argument is of type 'const struct configfs_subsystem *'
fs/ocfs2/cluster/nodemanager.c: In function 'init_o2nm':
fs/ocfs2/cluster/nodemanager.c:808:2: warning: passing argument 1 of 'config_group_init' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:101:13: note: expected 'struct config_group *' but argument is of type 'const struct config_group *'
>> fs/ocfs2/cluster/nodemanager.c:809:2: warning: passing argument 1 of '__mutex_init' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/mutex.h:133:13: note: expected 'struct mutex *' but argument is of type 'const struct mutex *'
fs/ocfs2/cluster/nodemanager.c:810:2: warning: passing argument 1 of 'configfs_register_subsystem' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:252:5: note: expected 'struct configfs_subsystem *' but argument is of type 'const struct configfs_subsystem *'
fs/ocfs2/cluster/nodemanager.c:820:2: warning: passing argument 1 of 'configfs_unregister_subsystem' discards 'const' qualifier from pointer target type [enabled by default]
include/linux/configfs.h:253:6: note: expected 'struct configfs_subsystem *' but argument is of type 'const struct configfs_subsystem *'

vim +809 fs/ocfs2/cluster/nodemanager.c

0c83ed8e Kurt Hackel 2005-12-15 740
14829422 Joel Becker 2007-06-14 741 int o2nm_depend_item(struct config_item *item)
14829422 Joel Becker 2007-06-14 742 {
14829422 Joel Becker 2007-06-14 @743 return configfs_depend_item(&o2nm_cluster_group.cs_subsys, item);
14829422 Joel Becker 2007-06-14 744 }
14829422 Joel Becker 2007-06-14 745
14829422 Joel Becker 2007-06-14 746 void o2nm_undepend_item(struct config_item *item)
14829422 Joel Becker 2007-06-14 747 {
9a9e3415 Krzysztof Opasiak 2015-12-11 748 configfs_undepend_item(item);
14829422 Joel Becker 2007-06-14 749 }
14829422 Joel Becker 2007-06-14 750
16c6a4f2 Joel Becker 2007-06-19 751 int o2nm_depend_this_node(void)
16c6a4f2 Joel Becker 2007-06-19 752 {
16c6a4f2 Joel Becker 2007-06-19 753 int ret = 0;
16c6a4f2 Joel Becker 2007-06-19 754 struct o2nm_node *local_node;
16c6a4f2 Joel Becker 2007-06-19 755
16c6a4f2 Joel Becker 2007-06-19 756 local_node = o2nm_get_node_by_num(o2nm_this_node());
16c6a4f2 Joel Becker 2007-06-19 757 if (!local_node) {
16c6a4f2 Joel Becker 2007-06-19 758 ret = -EINVAL;
16c6a4f2 Joel Becker 2007-06-19 759 goto out;
16c6a4f2 Joel Becker 2007-06-19 760 }
16c6a4f2 Joel Becker 2007-06-19 761
16c6a4f2 Joel Becker 2007-06-19 762 ret = o2nm_depend_item(&local_node->nd_item);
16c6a4f2 Joel Becker 2007-06-19 763 o2nm_node_put(local_node);
16c6a4f2 Joel Becker 2007-06-19 764
16c6a4f2 Joel Becker 2007-06-19 765 out:
16c6a4f2 Joel Becker 2007-06-19 766 return ret;
16c6a4f2 Joel Becker 2007-06-19 767 }
16c6a4f2 Joel Becker 2007-06-19 768
16c6a4f2 Joel Becker 2007-06-19 769 void o2nm_undepend_this_node(void)
16c6a4f2 Joel Becker 2007-06-19 770 {
16c6a4f2 Joel Becker 2007-06-19 771 struct o2nm_node *local_node;
16c6a4f2 Joel Becker 2007-06-19 772
16c6a4f2 Joel Becker 2007-06-19 773 local_node = o2nm_get_node_by_num(o2nm_this_node());
16c6a4f2 Joel Becker 2007-06-19 774 BUG_ON(!local_node);
16c6a4f2 Joel Becker 2007-06-19 775
16c6a4f2 Joel Becker 2007-06-19 776 o2nm_undepend_item(&local_node->nd_item);
16c6a4f2 Joel Becker 2007-06-19 777 o2nm_node_put(local_node);
16c6a4f2 Joel Becker 2007-06-19 778 }
16c6a4f2 Joel Becker 2007-06-19 779
16c6a4f2 Joel Becker 2007-06-19 780
0c83ed8e Kurt Hackel 2005-12-15 781 static void __exit exit_o2nm(void)
0c83ed8e Kurt Hackel 2005-12-15 782 {
0c83ed8e Kurt Hackel 2005-12-15 783 /* XXX sync with hb callbacks and shut down hb? */
0c83ed8e Kurt Hackel 2005-12-15 784 o2net_unregister_hb_callbacks();
0c83ed8e Kurt Hackel 2005-12-15 785 configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
0c83ed8e Kurt Hackel 2005-12-15 786 o2cb_sys_shutdown();
0c83ed8e Kurt Hackel 2005-12-15 787
0c83ed8e Kurt Hackel 2005-12-15 788 o2net_exit();
87d3d3f3 Sunil Mushran 2008-12-17 789 o2hb_exit();
0c83ed8e Kurt Hackel 2005-12-15 790 }
0c83ed8e Kurt Hackel 2005-12-15 791
0c83ed8e Kurt Hackel 2005-12-15 792 static int __init init_o2nm(void)
0c83ed8e Kurt Hackel 2005-12-15 793 {
0c83ed8e Kurt Hackel 2005-12-15 794 int ret = -1;
0c83ed8e Kurt Hackel 2005-12-15 795
87d3d3f3 Sunil Mushran 2008-12-17 796 ret = o2hb_init();
87d3d3f3 Sunil Mushran 2008-12-17 797 if (ret)
87d3d3f3 Sunil Mushran 2008-12-17 798 goto out;
2309e9e0 Sunil Mushran 2008-04-14 799
2309e9e0 Sunil Mushran 2008-04-14 800 ret = o2net_init();
2309e9e0 Sunil Mushran 2008-04-14 801 if (ret)
87d3d3f3 Sunil Mushran 2008-12-17 802 goto out_o2hb;
0c83ed8e Kurt Hackel 2005-12-15 803
0c83ed8e Kurt Hackel 2005-12-15 804 ret = o2net_register_hb_callbacks();
0c83ed8e Kurt Hackel 2005-12-15 805 if (ret)
3878f110 Joel Becker 2008-05-30 806 goto out_o2net;
0c83ed8e Kurt Hackel 2005-12-15 807
0c83ed8e Kurt Hackel 2005-12-15 808 config_group_init(&o2nm_cluster_group.cs_subsys.su_group);
e6bd07ae Joel Becker 2007-07-06 @809 mutex_init(&o2nm_cluster_group.cs_subsys.su_mutex);
0c83ed8e Kurt Hackel 2005-12-15 810 ret = configfs_register_subsystem(&o2nm_cluster_group.cs_subsys);
0c83ed8e Kurt Hackel 2005-12-15 811 if (ret) {
0c83ed8e Kurt Hackel 2005-12-15 812 printk(KERN_ERR "nodemanager: Registration returned %d\n", ret);
0c83ed8e Kurt Hackel 2005-12-15 813 goto out_callbacks;
0c83ed8e Kurt Hackel 2005-12-15 814 }
0c83ed8e Kurt Hackel 2005-12-15 815
0c83ed8e Kurt Hackel 2005-12-15 816 ret = o2cb_sys_init();
0c83ed8e Kurt Hackel 2005-12-15 817 if (!ret)
0c83ed8e Kurt Hackel 2005-12-15 818 goto out;
0c83ed8e Kurt Hackel 2005-12-15 819
0c83ed8e Kurt Hackel 2005-12-15 820 configfs_unregister_subsystem(&o2nm_cluster_group.cs_subsys);
0c83ed8e Kurt Hackel 2005-12-15 821 out_callbacks:
0c83ed8e Kurt Hackel 2005-12-15 822 o2net_unregister_hb_callbacks();
895928b8 Jeff Mahoney 2006-02-21 823 out_o2net:
895928b8 Jeff Mahoney 2006-02-21 824 o2net_exit();
87d3d3f3 Sunil Mushran 2008-12-17 825 out_o2hb:
87d3d3f3 Sunil Mushran 2008-12-17 826 o2hb_exit();
0c83ed8e Kurt Hackel 2005-12-15 827 out:
0c83ed8e Kurt Hackel 2005-12-15 828 return ret;
0c83ed8e Kurt Hackel 2005-12-15 829 }
0c83ed8e Kurt Hackel 2005-12-15 830

:::::: The code at line 809 was first introduced by commit
:::::: e6bd07aee739566803425acdbf5cdb29919164e1 configfs: Convert subsystem semaphore to mutex

:::::: TO: Joel Becker <joel.becker@oracle.com>
:::::: CC: Mark Fasheh <mark.fasheh@oracle.com>

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