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Date:   Thu, 5 Oct 2023 10:14:42 +0800
From:   kernel test robot <lkp@intel.com>
To:     Mukesh Ojha <quic_mojha@quicinc.com>, mcgrof@kernel.org,
        russell.h.weight@intel.com, gregkh@linuxfoundation.org,
        rafael@kernel.org
Cc:     llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
        linux-kernel@vger.kernel.org, Mukesh Ojha <quic_mojha@quicinc.com>
Subject: Re: [PATCH v2] firmware_loader: Abort new fw load request once
 firmware core knows about reboot
Message-ID: <202310051011.PW217wHD-lkp@intel.com>
References: <1696431327-7369-1-git-send-email-quic_mojha@quicinc.com>
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In-Reply-To: <1696431327-7369-1-git-send-email-quic_mojha@quicinc.com>
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Hi Mukesh,

kernel test robot noticed the following build errors:

[auto build test ERROR on driver-core/driver-core-testing]
[also build test ERROR on driver-core/driver-core-next driver-core/driver-core-linus linus/master v6.6-rc4 next-20231004]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Mukesh-Ojha/firmware_loader-Abort-new-fw-load-request-once-firmware-core-knows-about-reboot/20231004-225910
base:   driver-core/driver-core-testing
patch link:    https://lore.kernel.org/r/1696431327-7369-1-git-send-email-quic_mojha%40quicinc.com
patch subject: [PATCH v2] firmware_loader: Abort new fw load request once firmware core knows about reboot
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20231005/202310051011.PW217wHD-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231005/202310051011.PW217wHD-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310051011.PW217wHD-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/base/firmware_loader/main.c:21:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from arch/um/include/asm/hardirq.h:5:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/um/include/asm/io.h:24:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     547 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     560 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from drivers/base/firmware_loader/main.c:21:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from arch/um/include/asm/hardirq.h:5:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/um/include/asm/io.h:24:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     573 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from drivers/base/firmware_loader/main.c:21:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from arch/um/include/asm/hardirq.h:5:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/um/include/asm/io.h:24:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     584 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     594 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     604 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     692 |         readsb(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     700 |         readsw(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     708 |         readsl(PCI_IOBASE + addr, buffer, count);
         |                ~~~~~~~~~~ ^
   include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     717 |         writesb(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     726 |         writesw(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     735 |         writesl(PCI_IOBASE + addr, buffer, count);
         |                 ~~~~~~~~~~ ^
   In file included from drivers/base/firmware_loader/main.c:45:
   In file included from drivers/base/firmware_loader/fallback.h:9:
>> drivers/base/firmware_loader/sysfs.h:87:20: error: redefinition of 'fw_load_abort' as different kind of symbol
      87 | static inline void fw_load_abort(struct fw_sysfs *fw_sysfs)
         |                    ^
   drivers/base/firmware_loader/firmware.h:89:13: note: previous definition is here
      89 | extern bool fw_load_abort;
         |             ^
   12 warnings and 1 error generated.


vim +/fw_load_abort +87 drivers/base/firmware_loader/sysfs.h

e0c11a8b985137 Russ Weight 2022-04-21  86  
e0c11a8b985137 Russ Weight 2022-04-21 @87  static inline void fw_load_abort(struct fw_sysfs *fw_sysfs)
e0c11a8b985137 Russ Weight 2022-04-21  88  {
e0c11a8b985137 Russ Weight 2022-04-21  89  	struct fw_priv *fw_priv = fw_sysfs->fw_priv;
e0c11a8b985137 Russ Weight 2022-04-21  90  
e0c11a8b985137 Russ Weight 2022-04-21  91  	__fw_load_abort(fw_priv);
e0c11a8b985137 Russ Weight 2022-04-21  92  }
e0c11a8b985137 Russ Weight 2022-04-21  93  

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