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Message-ID: <20171016040951.uqwsroiip57m6nnr@wfg-t540p.sh.intel.com>
Date:   Mon, 16 Oct 2017 12:09:51 +0800
From:   Fengguang Wu <lkp@...el.com>
To:     Gang He <ghe@...e.com>
Cc:     kbuild-all@...org, bhumirks@...il.com, julia.lawall@...6.fr,
        ocfs2-devel@....oracle.com, linux-kernel@...r.kernel.org
Subject: Re: [Ocfs2-devel] [PATCH] ocfs2/cluster: make config_item_type const

Hi Gang,

On Sun, Oct 15, 2017 at 09:26:00PM -0600, Gang He wrote:
>Hello Intel Kbuild team,
>
>You just upgrade GCC version when compiling the latest kernel?

This report comes from a pretty old gcc:

        config: tile-allyesconfig (attached as .config)
        compiler: tilegx-linux-gcc (GCC) 4.6.2

Thanks,
Fengguang

>Since these code looks a little old, I am sure that the related contributors are still work on OCFS2 project.
>
>
>Thanks
>Gang
>
>
>>>>
>> 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://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_0day-2Dci_l
>> inux_commits_Bhumika-2DGoyal_ocfs2-2Dcluster-2Dmake-2Dconfig-5Fitem-5Ftype-2Dconst_2
>> 0171014-2D185701&d=DwIBAg&c=RoP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=f4ohdmG
>> rYxZejY77yzx3eNgTHb1ZAfZytktjHqNVzc8&m=8Ca3nktkbfrjbR5Spv4mvmdj2s377WohnG6h6z1
>> WB7E&s=hFVfDC8STTMTIDNtdipf8BlwR_V8RJG6an_l-r9MKyA&e=
>> config: tile-allyesconfig (attached as .config)
>> compiler: tilegx-linux-gcc (GCC) 4.6.2
>> reproduce:
>>         wget
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__raw.githubusercontent.c
>> om_intel_lkp-2Dtests_master_sbin_make.cross&d=DwIBAg&c=RoP1YumCXCgaWHvlZYR8PQcxB
>> KCX5YTpkKY057SbK10&r=f4ohdmGrYxZejY77yzx3eNgTHb1ZAfZytktjHqNVzc8&m=8Ca3nktkbfrj
>> bR5Spv4mvmdj2s377WohnG6h6z1WB7E&s=f5lUGF9NCtygTaG6AR0HkjhG7fOwD5nKFLaYCvPpju0&e
>> =  -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@...cle.com>
>> :::::: CC: Mark Fasheh <mark.fasheh@...cle.com>
>>
>> ---
>> 0-DAY kernel test infrastructure                Open Source Technology Center
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.01.org_pipermail_k
>> build-2Dall&d=DwIBAg&c=RoP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=f4ohdmGrYxZe
>> jY77yzx3eNgTHb1ZAfZytktjHqNVzc8&m=8Ca3nktkbfrjbR5Spv4mvmdj2s377WohnG6h6z1WB7E&s
>> =nLlW0xEmimMcnOene83E4zhz60ab1-1iXKtP_w_e8cQ&e=                    Intel
>> Corporation
>

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