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Date:   Fri, 6 May 2022 20:47:05 +0800
From:   kernel test robot <lkp@intel.com>
To:     Hao Xu <haoxu.linux@gmail.com>, io-uring@vger.kernel.org
Cc:     llvm@lists.linux.dev, kbuild-all@lists.01.org,
        Jens Axboe <axboe@kernel.dk>,
        Pavel Begunkov <asml.silence@gmail.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/5] io_uring: add a helper for poll clean
Message-ID: <202205062033.yS62xm5Z-lkp@intel.com>
References: <20220506070102.26032-5-haoxu.linux@gmail.com>
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In-Reply-To: <20220506070102.26032-5-haoxu.linux@gmail.com>
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Hi Hao,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on f2e030dd7aaea5a937a2547dc980fab418fbc5e7]

url:    https://github.com/intel-lab-lkp/linux/commits/Hao-Xu/fast-poll-multishot-mode/20220506-150750
base:   f2e030dd7aaea5a937a2547dc980fab418fbc5e7
config: mips-pic32mzda_defconfig (https://download.01.org/0day-ci/archive/20220506/202205062033.yS62xm5Z-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5e004fb787698440a387750db7f8028e7cb14cfc)
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://github.com/intel-lab-lkp/linux/commit/acb232e81643bd097278ebdc17038e6f280e7212
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Hao-Xu/fast-poll-multishot-mode/20220506-150750
        git checkout acb232e81643bd097278ebdc17038e6f280e7212
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        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@intel.com>

All errors (new ones prefixed by >>):

>> fs/io_uring.c:6067:2: error: call to undeclared function '__io_poll_clean'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
           __io_poll_clean(req);
           ^
   fs/io_uring.c:6067:2: note: did you mean '__io_fill_cqe'?
   fs/io_uring.c:2141:20: note: '__io_fill_cqe' declared here
   static inline bool __io_fill_cqe(struct io_ring_ctx *ctx, u64 user_data,
                      ^
   1 error generated.


vim +/__io_poll_clean +6067 fs/io_uring.c

  6058	
  6059	static void io_apoll_task_func(struct io_kiocb *req, bool *locked)
  6060	{
  6061		int ret;
  6062	
  6063		ret = io_poll_check_events(req, locked);
  6064		if (ret > 0)
  6065			return;
  6066	
> 6067		__io_poll_clean(req);
  6068	
  6069		if (!ret)
  6070			io_req_task_submit(req, locked);
  6071		else
  6072			io_req_complete_failed(req, ret);
  6073	}
  6074	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp