linux-kernel - Re: [PATCH mips/linux.git] firmware: bcm47xx_nvram: refactor finding & reading NVRAM

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Message-ID: <202103041822.4LBADjgH-lkp@intel.com>
Date:   Thu, 4 Mar 2021 18:36:25 +0800
From:   kernel test robot <lkp@...el.com>
To:     Rafał Miłecki <zajec5@...il.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     clang-built-linux@...glegroups.com, linux-mips@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivek Unune <npcomplete13@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        linux-kernel@...r.kernel.org,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH mips/linux.git] firmware: bcm47xx_nvram: refactor finding
 & reading NVRAM

Hi "Rafał,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.12-rc1 next-20210304]
[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]

url:    https://github.com/0day-ci/linux/commits/Rafa-Mi-ecki/firmware-bcm47xx_nvram-refactor-finding-reading-NVRAM/20210304-153024
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f69d02e37a85645aa90d18cacfff36dba370f797
config: x86_64-randconfig-a011-20210304 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project eec7f8f7b1226be422a76542cb403d02538f453a)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/10b445f4686138c7c84adb02aa521bbc6bef8ab7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Rafa-Mi-ecki/firmware-bcm47xx_nvram-refactor-finding-reading-NVRAM/20210304-153024
        git checkout 10b445f4686138c7c84adb02aa521bbc6bef8ab7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

   drivers/firmware/broadcom/bcm47xx_nvram.c:41: warning: Function parameter or member 'nvram' not described in 'bcm47xx_nvram_is_valid'
>> drivers/firmware/broadcom/bcm47xx_nvram.c:41: warning: expecting prototype for bcm47xx_nvram_validate(). Prototype was for bcm47xx_nvram_is_valid() instead
   drivers/firmware/broadcom/bcm47xx_nvram.c:49: warning: Function parameter or member 'nvram_start' not described in 'bcm47xx_nvram_copy'
   drivers/firmware/broadcom/bcm47xx_nvram.c:49: warning: Function parameter or member 'res_size' not described in 'bcm47xx_nvram_copy'
   drivers/firmware/broadcom/bcm47xx_nvram.c:73: warning: Function parameter or member 'flash_start' not described in 'bcm47xx_nvram_find_and_copy'
   drivers/firmware/broadcom/bcm47xx_nvram.c:73: warning: Function parameter or member 'res_size' not described in 'bcm47xx_nvram_find_and_copy'


vim +41 drivers/firmware/broadcom/bcm47xx_nvram.c

121915c4ee0812 arch/mips/bcm47xx/nvram.c                 Waldemar Brodkorb 2010-06-08  36  
10b445f4686138 drivers/firmware/broadcom/bcm47xx_nvram.c Rafał Miłecki     2021-03-04  37  /**
10b445f4686138 drivers/firmware/broadcom/bcm47xx_nvram.c Rafał Miłecki     2021-03-04  38   * bcm47xx_nvram_validate - check for a valid NVRAM at specified memory
10b445f4686138 drivers/firmware/broadcom/bcm47xx_nvram.c Rafał Miłecki     2021-03-04  39   */
10b445f4686138 drivers/firmware/broadcom/bcm47xx_nvram.c Rafał Miłecki     2021-03-04  40  static bool bcm47xx_nvram_is_valid(void __iomem *nvram)
f36738ddfeea02 arch/mips/bcm47xx/nvram.c                 Hauke Mehrtens    2012-12-26 @41  {
10b445f4686138 drivers/firmware/broadcom/bcm47xx_nvram.c Rafał Miłecki     2021-03-04  42  	return ((struct nvram_header *)nvram)->magic == NVRAM_MAGIC;
10b445f4686138 drivers/firmware/broadcom/bcm47xx_nvram.c Rafał Miłecki     2021-03-04  43  }
f36738ddfeea02 arch/mips/bcm47xx/nvram.c                 Hauke Mehrtens    2012-12-26  44  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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