Messages in this thread | | | Date | Thu, 3 Jun 2021 04:27:34 +0800 | From | kernel test robot <> | Subject | drivers/phy/cadence/phy-cadence-salvo.c:213:6: warning: variable 'value' set but not used |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 324c92e5e0ee0e993bdb106fac407846ed677f6b commit: 50d35aa8c15f7210fe76de64b1940100b588bcae phy: cadence: salvo: add salvo phy driver date: 1 year, 1 month ago config: x86_64-randconfig-a014-20210602 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project d41cb6bb2607fa5c7a9df2b3dab361353657d225) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=50d35aa8c15f7210fe76de64b1940100b588bcae git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 50d35aa8c15f7210fe76de64b1940100b588bcae # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/phy/cadence/phy-cadence-salvo.c:213:6: warning: variable 'value' set but not used [-Wunused-but-set-variable] u16 value; ^ 1 warning generated.
vim +/value +213 drivers/phy/cadence/phy-cadence-salvo.c
207 208 static int cdns_salvo_phy_power_on(struct phy *phy) 209 { 210 struct cdns_salvo_phy *salvo_phy = phy_get_drvdata(phy); 211 struct cdns_salvo_data *data = salvo_phy->data; 212 int ret, i; > 213 u16 value; 214 215 ret = clk_prepare_enable(salvo_phy->clk); 216 if (ret) 217 return ret; 218 219 for (i = 0; i < data->init_sequence_length; i++) { 220 struct cdns_reg_pairs *reg_pair = data->init_sequence_val + i; 221 222 cdns_salvo_write(salvo_phy, reg_pair->off, reg_pair->val); 223 } 224 225 /* RXDET_IN_P3_32KHZ, Receiver detect slow clock enable */ 226 value = cdns_salvo_read(salvo_phy, TB_ADDR_TX_RCVDETSC_CTRL); 227 value |= RXDET_IN_P3_32KHZ; 228 cdns_salvo_write(salvo_phy, TB_ADDR_TX_RCVDETSC_CTRL, 229 RXDET_IN_P3_32KHZ); 230 231 udelay(10); 232 233 return ret; 234 } 235
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