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Date:   Thu, 16 Jun 2022 13:15:30 +0800
From:   kernel test robot <lkp@intel.com>
To:     Hongyu Xie <xy521521@gmail.com>, mathias.nyman@intel.com,
        gregkh@linuxfoundation.org
Cc:     kbuild-all@lists.01.org, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org, 125707942@qq.com, wangqi@kylinos.cn,
        xiongxin@kylinos.cn, Hongyu Xie <xiehongyu1@kylinos.cn>
Subject: Re: [PATCH v3 -next] usb: xhci: disable irq during initialization
Message-ID: <202206161315.DjaJzxlY-lkp@intel.com>
References: <20220616025634.3693260-1-xiehongyu1@kylinos.cn>
MIME-Version: 1.0
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In-Reply-To: <20220616025634.3693260-1-xiehongyu1@kylinos.cn>
Precedence: bulk

Hi Hongyu,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20220615]

url:    https://github.com/intel-lab-lkp/linux/commits/Hongyu-Xie/usb-xhci-disable-irq-during-initialization/20220616-110418
base:    6012273897fefb12566580efedee10bb06e5e6ed
config: xtensa-allyesconfig (https://download.01.org/0day-ci/archive/20220616/202206161315.DjaJzxlY-lkp@intel.com/config)
compiler: xtensa-linux-gcc (GCC) 11.3.0
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
        # https://github.com/intel-lab-lkp/linux/commit/b8e08f7da837bf7aff0a032d4dbd6633c5a76f7d
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Hongyu-Xie/usb-xhci-disable-irq-during-initialization/20220616-110418
        git checkout b8e08f7da837bf7aff0a032d4dbd6633c5a76f7d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=xtensa SHELL=/bin/bash drivers/usb/host/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from include/linux/bitops.h:7,
                    from include/linux/log2.h:12,
                    from include/asm-generic/div64.h:55,
                    from ./arch/xtensa/include/generated/asm/div64.h:1,
                    from include/linux/math.h:6,
                    from include/linux/math64.h:6,
                    from include/linux/time64.h:5,
                    from include/linux/restart_block.h:10,
                    from include/linux/thread_info.h:14,
                    from arch/xtensa/include/asm/current.h:18,
                    from include/linux/mutex.h:14,
                    from include/linux/kernfs.h:11,
                    from include/linux/sysfs.h:16,
                    from include/linux/kobject.h:20,
                    from include/linux/pci.h:35,
                    from drivers/usb/host/xhci.c:11:
   drivers/usb/host/xhci.c: In function 'xhci_run_finished':
   drivers/usb/host/xhci.c:619:40: error: 'flags' undeclared (first use in this function)
     619 |         spin_lock_irqsave(&xhci->lock, flags);
         |                                        ^~~~~
   include/linux/typecheck.h:11:16: note: in definition of macro 'typecheck'
      11 |         typeof(x) __dummy2; \
         |                ^
   include/linux/spinlock.h:390:9: note: in expansion of macro 'raw_spin_lock_irqsave'
     390 |         raw_spin_lock_irqsave(spinlock_check(lock), flags);     \
         |         ^~~~~~~~~~~~~~~~~~~~~
   drivers/usb/host/xhci.c:619:9: note: in expansion of macro 'spin_lock_irqsave'
     619 |         spin_lock_irqsave(&xhci->lock, flags);
         |         ^~~~~~~~~~~~~~~~~
   drivers/usb/host/xhci.c:619:40: note: each undeclared identifier is reported only once for each function it appears in
     619 |         spin_lock_irqsave(&xhci->lock, flags);
         |                                        ^~~~~
   include/linux/typecheck.h:11:16: note: in definition of macro 'typecheck'
      11 |         typeof(x) __dummy2; \
         |                ^
   include/linux/spinlock.h:390:9: note: in expansion of macro 'raw_spin_lock_irqsave'
     390 |         raw_spin_lock_irqsave(spinlock_check(lock), flags);     \
         |         ^~~~~~~~~~~~~~~~~~~~~
   drivers/usb/host/xhci.c:619:9: note: in expansion of macro 'spin_lock_irqsave'
     619 |         spin_lock_irqsave(&xhci->lock, flags);
         |         ^~~~~~~~~~~~~~~~~
>> include/linux/typecheck.h:12:25: warning: comparison of distinct pointer types lacks a cast
      12 |         (void)(&__dummy == &__dummy2); \
         |                         ^~
   include/linux/spinlock.h:247:17: note: in expansion of macro 'typecheck'
     247 |                 typecheck(unsigned long, flags);        \
         |                 ^~~~~~~~~
   include/linux/spinlock.h:390:9: note: in expansion of macro 'raw_spin_lock_irqsave'
     390 |         raw_spin_lock_irqsave(spinlock_check(lock), flags);     \
         |         ^~~~~~~~~~~~~~~~~~~~~
   drivers/usb/host/xhci.c:619:9: note: in expansion of macro 'spin_lock_irqsave'
     619 |         spin_lock_irqsave(&xhci->lock, flags);
         |         ^~~~~~~~~~~~~~~~~


vim +12 include/linux/typecheck.h

e0deaff470900a Andrew Morton 2008-07-25   4  
e0deaff470900a Andrew Morton 2008-07-25   5  /*
e0deaff470900a Andrew Morton 2008-07-25   6   * Check at compile time that something is of a particular type.
e0deaff470900a Andrew Morton 2008-07-25   7   * Always evaluates to 1 so you may use it easily in comparisons.
e0deaff470900a Andrew Morton 2008-07-25   8   */
e0deaff470900a Andrew Morton 2008-07-25   9  #define typecheck(type,x) \
e0deaff470900a Andrew Morton 2008-07-25  10  ({	type __dummy; \
e0deaff470900a Andrew Morton 2008-07-25  11  	typeof(x) __dummy2; \
e0deaff470900a Andrew Morton 2008-07-25 @12  	(void)(&__dummy == &__dummy2); \
e0deaff470900a Andrew Morton 2008-07-25  13  	1; \
e0deaff470900a Andrew Morton 2008-07-25  14  })
e0deaff470900a Andrew Morton 2008-07-25  15  

-- 
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