tree: https://github.com/dlech/linux bone-counter head: f8f0ad10f30b5c1bea1a22f5de5dc9f2c6b7db1a commit: 5251e7147d627fbe13308dc390347dc16efeb85b [1/12] counter: Internalize sysfs interface code config: x86_64-randconfig-m001-20201014 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; New smatch warnings: drivers/counter/microchip-tcb-capture.c:173 mchp_tc_count_action_read() warn: bitwise AND condition is false here drivers/counter/counter-sysfs.c:109 counter_comp_u8_show() error: uninitialized symbol 'err'. drivers/counter/counter-sysfs.c:114 counter_comp_u8_show() error: uninitialized symbol 'data'. drivers/counter/counter-sysfs.c:233 counter_comp_u64_show() error: uninitialized symbol 'err'. drivers/counter/counter-sysfs.c:236 counter_comp_u64_show() error: uninitialized symbol 'data'. Old smatch warnings: drivers/counter/counter-sysfs.c:116 counter_comp_u8_show() error: uninitialized symbol 'data'. drivers/counter/counter-sysfs.c:118 counter_comp_u8_show() error: uninitialized symbol 'data'. drivers/counter/counter-sysfs.c:120 counter_comp_u8_show() error: uninitialized symbol 'data'. drivers/counter/counter-sysfs.c:122 counter_comp_u8_show() error: uninitialized symbol 'data'. drivers/counter/counter-sysfs.c:124 counter_comp_u8_show() error: uninitialized symbol 'data'. drivers/counter/counter-sysfs.c:126 counter_comp_u8_show() error: uninitialized symbol 'data'. drivers/counter/counter-sysfs.c:131 counter_comp_u8_show() error: uninitialized symbol 'data'. vim +173 drivers/counter/microchip-tcb-capture.c 5251e7147d627fb William Breathitt Gray 2020-09-26 161 static int mchp_tc_count_action_read(struct counter_device *counter, 106b104137fd5f0 Kamel Bouhara 2020-07-06 162 struct counter_count *count, 106b104137fd5f0 Kamel Bouhara 2020-07-06 163 struct counter_synapse *synapse, 5251e7147d627fb William Breathitt Gray 2020-09-26 164 u8 *action) 106b104137fd5f0 Kamel Bouhara 2020-07-06 165 { 106b104137fd5f0 Kamel Bouhara 2020-07-06 166 struct mchp_tc_data *const priv = counter->priv; 106b104137fd5f0 Kamel Bouhara 2020-07-06 167 u32 cmr; 106b104137fd5f0 Kamel Bouhara 2020-07-06 168 106b104137fd5f0 Kamel Bouhara 2020-07-06 169 regmap_read(priv->regmap, ATMEL_TC_REG(priv->channel[0], CMR), &cmr); 106b104137fd5f0 Kamel Bouhara 2020-07-06 170 5251e7147d627fb William Breathitt Gray 2020-09-26 171 *action = COUNTER_SYNAPSE_ACTION_NONE; 106b104137fd5f0 Kamel Bouhara 2020-07-06 172 106b104137fd5f0 Kamel Bouhara 2020-07-06 @173 if (cmr & ATMEL_TC_ETRGEDG_NONE) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ I'm guessing ATMEL_TC_ETRGEDG_NONE is zero and that's why Smatch thinks this can't possibly be true. 5251e7147d627fb William Breathitt Gray 2020-09-26 174 *action = COUNTER_SYNAPSE_ACTION_NONE; 106b104137fd5f0 Kamel Bouhara 2020-07-06 175 else if (cmr & ATMEL_TC_ETRGEDG_RISING) 5251e7147d627fb William Breathitt Gray 2020-09-26 176 *action = COUNTER_SYNAPSE_ACTION_RISING_EDGE; 106b104137fd5f0 Kamel Bouhara 2020-07-06 177 else if (cmr & ATMEL_TC_ETRGEDG_FALLING) 5251e7147d627fb William Breathitt Gray 2020-09-26 178 *action = COUNTER_SYNAPSE_ACTION_FALLING_EDGE; 106b104137fd5f0 Kamel Bouhara 2020-07-06 179 else if (cmr & ATMEL_TC_ETRGEDG_BOTH) 5251e7147d627fb William Breathitt Gray 2020-09-26 180 *action = COUNTER_SYNAPSE_ACTION_BOTH_EDGES; 106b104137fd5f0 Kamel Bouhara 2020-07-06 181 106b104137fd5f0 Kamel Bouhara 2020-07-06 182 return 0; 106b104137fd5f0 Kamel Bouhara 2020-07-06 183 } --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org _______________________________________________ kbuild mailing list -- kbuild(a)lists.01.org To unsubscribe send an email to kbuild-leave(a)lists.01.org