Subject: Re: [PATCH net-next v1 06/10] ptp: ocp: vectorize the sma accessor functions

From: kernel test robot <[email-masked]>
Date: Fri, 6 May 2022 12:19:18 +0800

Hi Jonathan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Jonathan-Lemon/ptp-ocp-various-updates/20220506-075044
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 1c1ed5a48411e1686997157c21633653fbe045c6
config: x86_64-randconfig-a005 (https://download.01.org/0day-ci/archive/20220506/[email-masked]/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
        # https://github.com/intel-lab-lkp/linux/commit/9bcda1415120b99c5ff40815417a85e485b1df3d
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jonathan-Lemon/ptp-ocp-various-updates/20220506-075044
        git checkout 9bcda1415120b99c5ff40815417a85e485b1df3d
        # 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=x86_64 SHELL=/bin/bash drivers/ptp/ fs/xfs/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email-masked]>

All warnings (new ones prefixed by >>):

>> drivers/ptp/ptp_ocp.c:365:32: warning: tentative definition of variable with internal linkage has incomplete non-array type 'const struct ocp_sma_op' [-Wtentative-definition-incomplete-type]
   static const struct ocp_sma_op ocp_fb_sma_op;
                                  ^
   drivers/ptp/ptp_ocp.c:334:15: note: forward declaration of 'struct ocp_sma_op'
           const struct ocp_sma_op *sma_op;
                        ^
   1 warning generated.

vim +365 drivers/ptp/ptp_ocp.c

   363	
   364	static const struct ocp_attr_group fb_timecard_groups[];
 > 365	static const struct ocp_sma_op ocp_fb_sma_op;
   366	

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https://01.org/lkp