netdev - Re: [net-next 10/14] ptp: lan743x: convert to .adjfine and diff_by_scaled

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Date:   Sun, 21 Aug 2022 23:22:22 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jacob Keller <jacob.e.keller@...el.com>, netdev@...r.kernel.org
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Jacob Keller <jacob.e.keller@...el.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Siva Reddy Kallam <siva.kallam@...adcom.com>,
        Prashant Sreedharan <prashant@...adcom.com>,
        Michael Chan <mchan@...adcom.com>,
        Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Tariq Toukan <tariqt@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Bryan Whitehead <bryan.whitehead@...rochip.com>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Richard Cochran <richardcochran@...il.com>,
        Vivek Thampi <vithampi@...are.com>
Subject: Re: [net-next 10/14] ptp: lan743x: convert to .adjfine and
 diff_by_scaled_ppm

Hi Jacob,

I love your patch! Yet something to improve:

[auto build test ERROR on 9017462f006c4b686cb1e1e1a3a52ea8363076e6]

url:    https://github.com/intel-lab-lkp/linux/commits/Jacob-Keller/ptp-convert-drivers-to-adjfine/20220819-063154
base:   9017462f006c4b686cb1e1e1a3a52ea8363076e6
config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20220821/202208212326.87xlsbQB-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 01ffe31cbb54bfd8e38e71b3cf804a1d67ebf9c1)
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 powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/d3c6eac5778f2ce74e7d6d7be90a60f616551718
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jacob-Keller/ptp-convert-drivers-to-adjfine/20220819-063154
        git checkout d3c6eac5778f2ce74e7d6d7be90a60f616551718
        # 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=powerpc SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> drivers/net/ethernet/microchip/lan743x_ptp.c:368:12: error: redefinition of 'lan743x_ptpci_adjfine'
   static int lan743x_ptpci_adjfine(struct ptp_clock_info *ptpci, long delta)
              ^
   drivers/net/ethernet/microchip/lan743x_ptp.c:335:12: note: previous definition is here
   static int lan743x_ptpci_adjfine(struct ptp_clock_info *ptpci, long scaled_ppm)
              ^
>> drivers/net/ethernet/microchip/lan743x_ptp.c:386:3: error: use of undeclared identifier 'lan743_rate_adj'; did you mean 'lan743x_rate_adj'?
                   lan743_rate_adj = (u32)diff;
                   ^~~~~~~~~~~~~~~
                   lan743x_rate_adj
   drivers/net/ethernet/microchip/lan743x_ptp.c:374:6: note: 'lan743x_rate_adj' declared here
           u64 lan743x_rate_adj;
               ^
>> drivers/net/ethernet/microchip/lan743x_ptp.c:388:3: error: use of undeclared identifier 'lan74e_rage_adj'; did you mean 'lan743x_rate_adj'?
                   lan74e_rage_adj = (u32)diff | PTP_CLOCK_RATE_ADJ_DIR_;
                   ^~~~~~~~~~~~~~~
                   lan743x_rate_adj
   drivers/net/ethernet/microchip/lan743x_ptp.c:374:6: note: 'lan743x_rate_adj' declared here
           u64 lan743x_rate_adj;
               ^
   3 errors generated.


vim +/lan743x_ptpci_adjfine +368 drivers/net/ethernet/microchip/lan743x_ptp.c

   367	
 > 368	static int lan743x_ptpci_adjfine(struct ptp_clock_info *ptpci, long delta)
   369	{
   370		struct lan743x_ptp *ptp =
   371			container_of(ptpci, struct lan743x_ptp, ptp_clock_info);
   372		struct lan743x_adapter *adapter =
   373			container_of(ptp, struct lan743x_adapter, ptp);
   374		u64 lan743x_rate_adj;
   375		s32 delta_ppb;
   376		u64 diff;
   377	
   378		delta_ppb = scaled_ppm_to_ppb(delta);
   379		if ((delta_ppb < (-LAN743X_PTP_MAX_FREQ_ADJ_IN_PPB)) ||
   380		    delta_ppb > LAN743X_PTP_MAX_FREQ_ADJ_IN_PPB) {
   381			return -EINVAL;
   382		}
   383	
   384		/* diff_by_scaled_ppm returns true if the difference is negative */
   385		if (diff_by_scaled_ppm(1ULL << 35, delta, &diff))
 > 386			lan743_rate_adj = (u32)diff;
   387		else
 > 388			lan74e_rage_adj = (u32)diff | PTP_CLOCK_RATE_ADJ_DIR_;
   389	
   390		lan743x_csr_write(adapter, PTP_CLOCK_RATE_ADJ,
   391				  lan743x_rate_adj);
   392	
   393		return 0;
   394	}
   395	

-- 
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