netdev - Re: [PATCH v1 net-next 3/3] net: stmmac: ptp: update tas basetime after ptp adjust

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Date:   Tue, 1 Jun 2021 19:21:48 +0800
From:   kernel test robot <lkp@...el.com>
To:     Xiaoliang Yang <xiaoliang.yang_1@....com>, davem@...emloft.net,
        joabreu@...opsys.com, kuba@...nel.org, alexandre.torgue@...com,
        peppe.cavallaro@...com, mcoquelin.stm32@...il.com
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org,
        boon.leong.ong@...el.com, weifeng.voon@...el.com,
        vee.khee.wong@...el.com
Subject: Re: [PATCH v1 net-next 3/3] net: stmmac: ptp: update tas basetime
 after ptp adjust

Hi Xiaoliang,

Thank you for the patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Xiaoliang-Yang/net-stmmac-re-configure-tas-basetime-after-ptp-time-adjust/20210601-163025
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 7fc6d3abc0844a9b8ef67937af465a417af6e9e9
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/427b65e5ea008c937ca6bf7ceca8113db2c37f1a
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Xiaoliang-Yang/net-stmmac-re-configure-tas-basetime-after-ptp-time-adjust/20210601-163025
        git checkout 427b65e5ea008c937ca6bf7ceca8113db2c37f1a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

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

All errors (new ones prefixed by >>):

   drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c: In function 'stmmac_adjust_time':
>> drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c:106:10: error: implicit declaration of function 'stmmac_calc_tas_basetime' [-Werror=implicit-function-declaration]
     106 |   time = stmmac_calc_tas_basetime(basetime,
         |          ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c:106:10: error: incompatible types when assigning to type 'struct timespec64' from type 'int'
   cc1: some warnings being treated as errors


vim +/stmmac_calc_tas_basetime +106 drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c

    48	
    49	/**
    50	 * stmmac_adjust_time
    51	 *
    52	 * @ptp: pointer to ptp_clock_info structure
    53	 * @delta: desired change in nanoseconds
    54	 *
    55	 * Description: this function will shift/adjust the hardware clock time.
    56	 */
    57	static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta)
    58	{
    59		struct stmmac_priv *priv =
    60		    container_of(ptp, struct stmmac_priv, ptp_clock_ops);
    61		unsigned long flags;
    62		u32 sec, nsec;
    63		u32 quotient, reminder;
    64		int neg_adj = 0;
    65		bool xmac, est_rst = false;
    66		int ret;
    67	
    68		xmac = priv->plat->has_gmac4 || priv->plat->has_xgmac;
    69	
    70		if (delta < 0) {
    71			neg_adj = 1;
    72			delta = -delta;
    73		}
    74	
    75		quotient = div_u64_rem(delta, 1000000000ULL, &reminder);
    76		sec = quotient;
    77		nsec = reminder;
    78	
    79		/* If EST is enabled, disabled it before adjust ptp time. */
    80		if (priv->plat->est && priv->plat->est->enable) {
    81			est_rst = true;
    82			mutex_lock(&priv->plat->est->lock);
    83			priv->plat->est->enable = false;
    84			stmmac_est_configure(priv, priv->ioaddr, priv->plat->est,
    85					     priv->plat->clk_ptp_rate);
    86			mutex_unlock(&priv->plat->est->lock);
    87		}
    88	
    89		spin_lock_irqsave(&priv->ptp_lock, flags);
    90		stmmac_adjust_systime(priv, priv->ptpaddr, sec, nsec, neg_adj, xmac);
    91		spin_unlock_irqrestore(&priv->ptp_lock, flags);
    92	
    93		/* Caculate new basetime and re-configured EST after PTP time adjust. */
    94		if (est_rst) {
    95			struct timespec64 current_time, time;
    96			ktime_t current_time_ns, basetime;
    97			u64 cycle_time;
    98	
    99			priv->ptp_clock_ops.gettime64(&priv->ptp_clock_ops, &current_time);
   100			current_time_ns = timespec64_to_ktime(current_time);
   101			time.tv_nsec = priv->plat->est->btr[0];
   102			time.tv_sec = priv->plat->est->btr[1];
   103			basetime = timespec64_to_ktime(time);
   104			cycle_time = priv->plat->est->ctr[1] * NSEC_PER_SEC +
   105				     priv->plat->est->ctr[0];
 > 106			time = stmmac_calc_tas_basetime(basetime,
   107							current_time_ns,
   108							cycle_time);
   109	
   110			mutex_lock(&priv->plat->est->lock);
   111			priv->plat->est->btr[0] = (u32)time.tv_nsec;
   112			priv->plat->est->btr[1] = (u32)time.tv_sec;
   113			priv->plat->est->enable = true;
   114			ret = stmmac_est_configure(priv, priv->ioaddr, priv->plat->est,
   115						   priv->plat->clk_ptp_rate);
   116			mutex_unlock(&priv->plat->est->lock);
   117			if (ret)
   118				netdev_err(priv->dev, "failed to configure EST\n");
   119		}
   120	
   121		return 0;
   122	}
   123	

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

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