Messages in this thread | | | Subject | Re: [PATCH net v4 3/3] net: stmmac: fix unbalanced ptp clock issue in suspend/resume flow | From | Biao Huang <> | Date | Fri, 15 Jul 2022 15:52:22 +0800 |
| |
Hi, This warning is fixed in v5 send, please test with v5.
Best Regards! Biao
On Fri, 2022-07-15 at 06:40 +0800, kernel test robot wrote: > Hi Biao, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on net/master] > > url: > https://urldefense.com/v3/__https://github.com/intel-lab-lkp/linux/commits/Biao-Huang/stmmac-dwmac-mediatek-fix-clock-issue/20220713-181044__;!!CTRNKA9wMg0ARbw!zSIorkBYIMJM_lsS_i-iPXUHkJnImzF7_legwMzhyi3I_4dNo9-GDn7_MBAjUJw2wA$ > > base: > https://urldefense.com/v3/__https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git__;!!CTRNKA9wMg0ARbw!zSIorkBYIMJM_lsS_i-iPXUHkJnImzF7_legwMzhyi3I_4dNo9-GDn7_MBA1ViIHxA$ > 22b9c41a3fb8ef4624bcda312665937d2ba98aa7 > config: x86_64-randconfig-a016 ( > https://urldefense.com/v3/__https://download.01.org/0day-ci/archive/20220715/202207150612.B3phHNEY-lkp@intel.com/config__;!!CTRNKA9wMg0ARbw!zSIorkBYIMJM_lsS_i-iPXUHkJnImzF7_legwMzhyi3I_4dNo9-GDn7_MBDrBZ7cUQ$ > ) > compiler: clang version 15.0.0 ( > https://urldefense.com/v3/__https://github.com/llvm/llvm-project__;!!CTRNKA9wMg0ARbw!zSIorkBYIMJM_lsS_i-iPXUHkJnImzF7_legwMzhyi3I_4dNo9-GDn7_MBB4_f7rKw$ > $ 5e61b9c556267086ef9b743a0b57df302eef831b) > reproduce (this is a W=1 build): > wget > https://urldefense.com/v3/__https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross__;!!CTRNKA9wMg0ARbw!zSIorkBYIMJM_lsS_i-iPXUHkJnImzF7_legwMzhyi3I_4dNo9-GDn7_MBBCyTTgjA$ > -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # > https://urldefense.com/v3/__https://github.com/intel-lab-lkp/linux/commit/f145c999bcff52c22cc849bf17f2b30c5e991c0a__;!!CTRNKA9wMg0ARbw!zSIorkBYIMJM_lsS_i-iPXUHkJnImzF7_legwMzhyi3I_4dNo9-GDn7_MBCdfrCTBg$ > > git remote add linux-review > https://urldefense.com/v3/__https://github.com/intel-lab-lkp/linux__;!!CTRNKA9wMg0ARbw!zSIorkBYIMJM_lsS_i-iPXUHkJnImzF7_legwMzhyi3I_4dNo9-GDn7_MBAnpXqSbQ$ > > git fetch --no-tags linux-review Biao-Huang/stmmac-dwmac- > mediatek-fix-clock-issue/20220713-181044 > git checkout f145c999bcff52c22cc849bf17f2b30c5e991c0a > # 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/net/ethernet/stmicro/stmmac/ > > If you fix the issue, kindly add following tag where applicable > Reported-by: kernel test robot <lkp@intel.com> > > All warnings (new ones prefixed by >>): > > > > drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:837:6: warning: > > > unused variable 'ret' [-Wunused-variable] > > int ret; > ^ > 1 warning generated. > > > vim +/ret +837 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > > 891434b18ec0a2 Rayagond Kokatanur 2013-03-26 820 > a6da2bbb0005e6 Holger Assmann 2021-11-21 821 /** > a6da2bbb0005e6 Holger Assmann 2021-11-21 822 * > stmmac_init_tstamp_counter - init hardware timestamping counter > a6da2bbb0005e6 Holger Assmann 2021-11-21 823 * @priv: driver > private structure > a6da2bbb0005e6 Holger Assmann 2021-11-21 824 * @systime_flags: > timestamping flags > a6da2bbb0005e6 Holger Assmann 2021-11-21 825 * Description: > a6da2bbb0005e6 Holger Assmann 2021-11-21 826 * Initialize > hardware counter for packet timestamping. > a6da2bbb0005e6 Holger Assmann 2021-11-21 827 * This is valid > as long as the interface is open and not suspended. > a6da2bbb0005e6 Holger Assmann 2021-11-21 828 * Will be rerun > after resuming from suspend, case in which the timestamping > a6da2bbb0005e6 Holger Assmann 2021-11-21 829 * flags updated > by stmmac_hwtstamp_set() also need to be restored. > a6da2bbb0005e6 Holger Assmann 2021-11-21 830 */ > a6da2bbb0005e6 Holger Assmann 2021-11-21 831 int > stmmac_init_tstamp_counter(struct stmmac_priv *priv, u32 > systime_flags) > a6da2bbb0005e6 Holger Assmann 2021-11-21 832 { > a6da2bbb0005e6 Holger Assmann 2021-11-21 833 bool xmac = > priv->plat->has_gmac4 || priv->plat->has_xgmac; > a6da2bbb0005e6 Holger Assmann 2021-11-21 834 struct > timespec64 now; > a6da2bbb0005e6 Holger Assmann 2021-11-21 835 u32 sec_inc = > 0; > a6da2bbb0005e6 Holger Assmann 2021-11-21 836 u64 temp = 0; > a6da2bbb0005e6 Holger Assmann 2021-11-21 @837 int ret; > a6da2bbb0005e6 Holger Assmann 2021-11-21 838 > a6da2bbb0005e6 Holger Assmann 2021-11-21 839 if (!(priv- > >dma_cap.time_stamp || priv->dma_cap.atime_stamp)) > a6da2bbb0005e6 Holger Assmann 2021-11-21 840 return > -EOPNOTSUPP; > a6da2bbb0005e6 Holger Assmann 2021-11-21 841 > a6da2bbb0005e6 Holger Assmann 2021-11-21 842 stmmac_config_h > w_tstamping(priv, priv->ptpaddr, systime_flags); > a6da2bbb0005e6 Holger Assmann 2021-11-21 843 priv- > >systime_flags = systime_flags; > a6da2bbb0005e6 Holger Assmann 2021-11-21 844 > a6da2bbb0005e6 Holger Assmann 2021-11-21 845 /* program Sub > Second Increment reg */ > a6da2bbb0005e6 Holger Assmann 2021-11-21 846 stmmac_config_s > ub_second_increment(priv, priv->ptpaddr, > a6da2bbb0005e6 Holger Assmann 2021-11-21 847 > priv->plat->clk_ptp_rate, > a6da2bbb0005e6 Holger Assmann 2021-11-21 848 > xmac, &sec_inc); > a6da2bbb0005e6 Holger Assmann 2021-11-21 849 temp = > div_u64(1000000000ULL, sec_inc); > a6da2bbb0005e6 Holger Assmann 2021-11-21 850 > a6da2bbb0005e6 Holger Assmann 2021-11-21 851 /* Store sub > second increment for later use */ > a6da2bbb0005e6 Holger Assmann 2021-11-21 852 priv- > >sub_second_inc = sec_inc; > a6da2bbb0005e6 Holger Assmann 2021-11-21 853 > a6da2bbb0005e6 Holger Assmann 2021-11-21 854 /* calculate > default added value: > a6da2bbb0005e6 Holger Assmann 2021-11-21 855 * formula is : > a6da2bbb0005e6 Holger Assmann 2021-11-21 856 * addend = > (2^32)/freq_div_ratio; > a6da2bbb0005e6 Holger Assmann 2021-11-21 857 * where, > freq_div_ratio = 1e9ns/sec_inc > a6da2bbb0005e6 Holger Assmann 2021-11-21 858 */ > a6da2bbb0005e6 Holger Assmann 2021-11-21 859 temp = > (u64)(temp << 32); > a6da2bbb0005e6 Holger Assmann 2021-11-21 860 priv- > >default_addend = div_u64(temp, priv->plat->clk_ptp_rate); > a6da2bbb0005e6 Holger Assmann 2021-11-21 861 stmmac_config_a > ddend(priv, priv->ptpaddr, priv->default_addend); > a6da2bbb0005e6 Holger Assmann 2021-11-21 862 > a6da2bbb0005e6 Holger Assmann 2021-11-21 863 /* initialize > system time */ > a6da2bbb0005e6 Holger Assmann 2021-11-21 864 ktime_get_real_ > ts64(&now); > a6da2bbb0005e6 Holger Assmann 2021-11-21 865 > a6da2bbb0005e6 Holger Assmann 2021-11-21 866 /* lower 32 > bits of tv_sec are safe until y2106 */ > a6da2bbb0005e6 Holger Assmann 2021-11-21 867 stmmac_init_sys > time(priv, priv->ptpaddr, (u32)now.tv_sec, now.tv_nsec); > a6da2bbb0005e6 Holger Assmann 2021-11-21 868 > a6da2bbb0005e6 Holger Assmann 2021-11-21 869 return 0; > a6da2bbb0005e6 Holger Assmann 2021-11-21 870 } > a6da2bbb0005e6 Holger Assmann 2021-11- > 21 871 EXPORT_SYMBOL_GPL(stmmac_init_tstamp_counter); > a6da2bbb0005e6 Holger Assmann 2021-11-21 872 >
| |