Re: [PATCH -next] appletalk: use remove_proc_subtree to simplify procfs code

From: kbuild test robot
Date: Wed Feb 27 2019 - 13:33:40 EST


Hi YueHaibing,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20190227]

url: https://github.com/0day-ci/linux/commits/Yue-Haibing/appletalk-use-remove_proc_subtree-to-simplify-procfs-code/20190228-014856
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 8.2.0
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
GCC_VERSION=8.2.0 make.cross ARCH=xtensa

All warnings (new ones prefixed by >>):

net//appletalk/atalk_proc.c: In function 'atalk_proc_init':
>> net//appletalk/atalk_proc.c:218:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (!proc_create_seq("atalk/interface", 0444, init_net.proc_net,
^~
net//appletalk/atalk_proc.c:220:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
goto out;
^~~~
net//appletalk/atalk_proc.c:222:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (!proc_create_seq("atalk/route", 0444, init_net.proc_net,
^~
net//appletalk/atalk_proc.c:224:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
goto out;
^~~~
net//appletalk/atalk_proc.c:226:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (!proc_create_seq("atalk/socket", 0444, init_net.proc_net,
^~
net//appletalk/atalk_proc.c:228:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
goto out;
^~~~
net//appletalk/atalk_proc.c:230:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
if (!proc_create_seq_private("atalk/arp", 0444, init_net.proc_net,
^~
net//appletalk/atalk_proc.c:233:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
goto out;
^~~~

vim +/if +218 net//appletalk/atalk_proc.c

212
213 int __init atalk_proc_init(void)
214 {
215 if (!proc_mkdir("atalk", init_net.proc_net))
216 return -ENOMEM;
217
> 218 if (!proc_create_seq("atalk/interface", 0444, init_net.proc_net,
219 &atalk_seq_interface_ops));
220 goto out;
221
222 if (!proc_create_seq("atalk/route", 0444, init_net.proc_net,
223 &atalk_seq_route_ops));
224 goto out;
225
226 if (!proc_create_seq("atalk/socket", 0444, init_net.proc_net,
227 &atalk_seq_socket_ops));
228 goto out;
229
230 if (!proc_create_seq_private("atalk/arp", 0444, init_net.proc_net,
231 &aarp_seq_ops,
232 sizeof(struct aarp_iter_state), NULL));
233 goto out;
234
235 out:
236 remove_proc_subtree("atalk", init_net.proc_net);
237 return -ENOMEM;
238 }
239

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