linux-kernel - drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h:159:5: warning: no previous prototype for 'mlxsw_sp_ptp_txhdr

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Message-ID: <202208060935.1nNlUNZG-lkp@intel.com>
Date:   Sat, 6 Aug 2022 09:17:33 +0800
From:   kernel test robot <lkp@...el.com>
To:     Danielle Ratson <danieller@...dia.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Amit Cohen <amcohen@...dia.com>,
        Petr Machata <petrm@...dia.com>,
        Ido Schimmel <idosch@...dia.com>
Subject: drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h:159:5: warning:
 no previous prototype for 'mlxsw_sp_ptp_txhdr_construct'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6614a3c3164a5df2b54abb0b3559f51041cf705b
commit: 24157bc69f45e8340af5ed72422afe8a248e0153 mlxsw: Send PTP packets as data packets to overcome a limitation
date:   8 days ago
config: csky-randconfig-c033-20220805 (https://download.01.org/0day-ci/archive/20220806/202208060935.1nNlUNZG-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 12.1.0
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24157bc69f45e8340af5ed72422afe8a248e0153
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 24157bc69f45e8340af5ed72422afe8a248e0153
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash drivers/net/

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

All warnings (new ones prefixed by >>):

   In file included from drivers/net/ethernet/mellanox/mlxsw/spectrum.c:46:
>> drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h:159:5: warning: no previous prototype for 'mlxsw_sp_ptp_txhdr_construct' [-Wmissing-prototypes]
     159 | int mlxsw_sp_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h:187:5: warning: no previous prototype for 'mlxsw_sp2_ptp_txhdr_construct' [-Wmissing-prototypes]
     187 | int mlxsw_sp2_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/mlxsw_sp_ptp_txhdr_construct +159 drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.h

   158	
 > 159	int mlxsw_sp_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
   160					 struct mlxsw_sp_port *mlxsw_sp_port,
   161					 struct sk_buff *skb,
   162					 const struct mlxsw_tx_info *tx_info)
   163	{
   164		return -EOPNOTSUPP;
   165	}
   166	
   167	static inline struct mlxsw_sp_ptp_clock *
   168	mlxsw_sp2_ptp_clock_init(struct mlxsw_sp *mlxsw_sp, struct device *dev)
   169	{
   170		return NULL;
   171	}
   172	
   173	static inline void mlxsw_sp2_ptp_clock_fini(struct mlxsw_sp_ptp_clock *clock)
   174	{
   175	}
   176	
   177	static inline struct mlxsw_sp_ptp_state *
   178	mlxsw_sp2_ptp_init(struct mlxsw_sp *mlxsw_sp)
   179	{
   180		return NULL;
   181	}
   182	
   183	static inline void mlxsw_sp2_ptp_fini(struct mlxsw_sp_ptp_state *ptp_state)
   184	{
   185	}
   186	
 > 187	int mlxsw_sp2_ptp_txhdr_construct(struct mlxsw_core *mlxsw_core,
   188					  struct mlxsw_sp_port *mlxsw_sp_port,
   189					  struct sk_buff *skb,
   190					  const struct mlxsw_tx_info *tx_info)
   191	{
   192		return -EOPNOTSUPP;
   193	}
   194	#endif
   195	

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