linux-kernel - [mingo-tip:sched/headers 1684/2384] arch/mips/kernel/rtlx.c:345:46: error: unknown type name 'poll

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Message-ID: <202201152345.4hznmFMe-lkp@intel.com>
Date:   Sun, 16 Jan 2022 00:03:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [mingo-tip:sched/headers 1684/2384] arch/mips/kernel/rtlx.c:345:46:
 error: unknown type name 'poll_table'

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
head:   4c707c1c0de83967079b4e385012fa5b00e2cd11
commit: 4e8d31a2893e3ef566a2e9860e746519711a0ed3 [1684/2384] headers/deps: tracing: Optimize <linux/ring_buffer.h>'s header dependencies, remove <linux/poll.h>
config: mips-maltaaprp_defconfig (https://download.01.org/0day-ci/archive/20220115/202201152345.4hznmFMe-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 650fc40b6d8d9a5869b4fca525d5f237b0ee2803)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=4e8d31a2893e3ef566a2e9860e746519711a0ed3
        git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
        git fetch --no-tags mingo-tip sched/headers
        git checkout 4e8d31a2893e3ef566a2e9860e746519711a0ed3
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from arch/mips/kernel/rtlx.c:14:
   In file included from include/linux/fs_api.h:2:
   In file included from include/linux/fs.h:6:
   include/linux/wait_bit.h:35:19: error: expected ';' after top level declarator
   extern void __init wait_bit_init(void);
                     ^
                     ;
>> arch/mips/kernel/rtlx.c:345:46: error: unknown type name 'poll_table'
   static __poll_t file_poll(struct file *file, poll_table *wait)
                                                ^
>> arch/mips/kernel/rtlx.c:350:2: error: implicit declaration of function 'poll_wait' [-Werror,-Wimplicit-function-declaration]
           poll_wait(file, &channel_wqs[minor].rt_queue, wait);
           ^
>> arch/mips/kernel/rtlx.c:358:11: error: use of undeclared identifier 'EPOLLIN'
                   mask |= EPOLLIN | EPOLLRDNORM;
                           ^
>> arch/mips/kernel/rtlx.c:358:21: error: use of undeclared identifier 'EPOLLRDNORM'
                   mask |= EPOLLIN | EPOLLRDNORM;
                                     ^
>> arch/mips/kernel/rtlx.c:362:11: error: use of undeclared identifier 'EPOLLOUT'
                   mask |= EPOLLOUT | EPOLLWRNORM;
                           ^
>> arch/mips/kernel/rtlx.c:362:22: error: use of undeclared identifier 'EPOLLWRNORM'
                   mask |= EPOLLOUT | EPOLLWRNORM;
                                      ^
   7 errors generated.


vim +/poll_table +345 arch/mips/kernel/rtlx.c

2600990e640e3b Ralf Baechle   2006-04-05  344  
8b9aab09aaf390 Al Viro        2017-07-02 @345  static __poll_t file_poll(struct file *file, poll_table *wait)
2600990e640e3b Ralf Baechle   2006-04-05  346  {
496ad9aa8ef448 Al Viro        2013-01-23  347  	int minor = iminor(file_inode(file));
8b9aab09aaf390 Al Viro        2017-07-02  348  	__poll_t mask = 0;
2600990e640e3b Ralf Baechle   2006-04-05  349  
2600990e640e3b Ralf Baechle   2006-04-05 @350  	poll_wait(file, &channel_wqs[minor].rt_queue, wait);
2600990e640e3b Ralf Baechle   2006-04-05  351  	poll_wait(file, &channel_wqs[minor].lx_queue, wait);
2600990e640e3b Ralf Baechle   2006-04-05  352  
2600990e640e3b Ralf Baechle   2006-04-05  353  	if (rtlx == NULL)
2600990e640e3b Ralf Baechle   2006-04-05  354  		return 0;
2600990e640e3b Ralf Baechle   2006-04-05  355  
2600990e640e3b Ralf Baechle   2006-04-05  356  	/* data available to read? */
2600990e640e3b Ralf Baechle   2006-04-05  357  	if (rtlx_read_poll(minor, 0))
a9a08845e9acbd Linus Torvalds 2018-02-11 @358  		mask |= EPOLLIN | EPOLLRDNORM;
2600990e640e3b Ralf Baechle   2006-04-05  359  
2600990e640e3b Ralf Baechle   2006-04-05  360  	/* space to write */
2600990e640e3b Ralf Baechle   2006-04-05  361  	if (rtlx_write_poll(minor))
a9a08845e9acbd Linus Torvalds 2018-02-11 @362  		mask |= EPOLLOUT | EPOLLWRNORM;
2600990e640e3b Ralf Baechle   2006-04-05  363  
2600990e640e3b Ralf Baechle   2006-04-05  364  	return mask;
2600990e640e3b Ralf Baechle   2006-04-05  365  }
2600990e640e3b Ralf Baechle   2006-04-05  366  

:::::: The code at line 345 was first introduced by commit
:::::: 8b9aab09aaf390b868359b9365b667cf6506473c mips: annotate ->poll() instances

:::::: TO: Al Viro <viro@...iv.linux.org.uk>
:::::: CC: Al Viro <viro@...iv.linux.org.uk>

---
0-DAY CI Kernel Test Service, Intel Corporation
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