[krzk-github:n/qcom-bwmon-v3 21/22] drivers/soc/qcom/icc-bwmon.c:160:35: warning: variable 'irq_enable' set but not used
From: kernel test robot
Date: Tue May 24 2022 - 04:59:52 EST
tree: https://github.com/krzk/linux n/qcom-bwmon-v3
head: f595f77c2d91820ce85df16e278315e522172710
commit: 3cd6e62deb674c541c6e46597273ee0235c339ec [21/22] bwmon v3
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220524/202205241624.KBClsJGP-lkp@xxxxxxxxx/config)
compiler: arceb-elf-gcc (GCC) 11.3.0
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/krzk/linux/commit/3cd6e62deb674c541c6e46597273ee0235c339ec
git remote add krzk-github https://github.com/krzk/linux
git fetch --no-tags krzk-github n/qcom-bwmon-v3
git checkout 3cd6e62deb674c541c6e46597273ee0235c339ec
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/soc/qcom/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All warnings (new ones prefixed by >>):
drivers/soc/qcom/icc-bwmon.c: In function 'bwmon_start':
>> drivers/soc/qcom/icc-bwmon.c:160:35: warning: variable 'irq_enable' set but not used [-Wunused-but-set-variable]
160 | unsigned int thres_count, irq_enable;
| ^~~~~~~~~~
vim +/irq_enable +160 drivers/soc/qcom/icc-bwmon.c
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 156
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 157 static void bwmon_start(struct icc_bwmon *bwmon,
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 158 const struct icc_bwmon_data *data)
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 159 {
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 @160 unsigned int thres_count, irq_enable;
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 161 int window;
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 162
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 163 bwmon_clear(bwmon);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 164
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 165 window = mult_frac(bwmon->sample_ms, HW_TIMER_HZ, MSEC_PER_SEC);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 166 writel_relaxed(window, bwmon->base + BWMON_SAMPLE_WINDOW);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 167
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 168 bwmon_set_threshold(bwmon, BWMON_THRESHOLD_HIGH,
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 169 data->default_highbw_kbps);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 170 bwmon_set_threshold(bwmon, BWMON_THRESHOLD_MED,
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 171 data->default_medbw_kbps);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 172 bwmon_set_threshold(bwmon, BWMON_THRESHOLD_LOW,
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 173 data->default_lowbw_kbps);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 174
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 175 thres_count = data->zone3_thres_count << BWMON_THRESHOLD_COUNT_ZONE3_SHIFT |
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 176 BWMON_THRESHOLD_COUNT_ZONE2_DEFAULT << BWMON_THRESHOLD_COUNT_ZONE2_SHIFT |
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 177 data->zone1_thres_count << BWMON_THRESHOLD_COUNT_ZONE1_SHIFT |
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 178 BWMON_THRESHOLD_COUNT_ZONE0_DEFAULT;
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 179 writel_relaxed(thres_count, bwmon->base + BWMON_THRESHOLD_COUNT);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 180 writel_relaxed(BWMON_ZONE_ACTIONS_DEFAULT,
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 181 bwmon->base + BWMON_ZONE_ACTIONS);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 182
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 183 /* Write barriers in bwmon_clear() */
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 184 irq_enable = BIT(BWMON_IRQ_ENABLE_ZONE1_SHIFT) |
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 185 BIT(BWMON_IRQ_ENABLE_ZONE3_SHIFT);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 186 bwmon_clear(bwmon);
3cd6e62deb674c Krzysztof Kozlowski 2022-05-24 187 bwmon_enable(bwmon, BWMON_IRQ_ENABLE_MASK);
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 188 }
1598903c24dd56 Krzysztof Kozlowski 2022-04-22 189
:::::: The code at line 160 was first introduced by commit
:::::: 1598903c24dd564eb700ef2439ca169bc6c52fb0 soc: qcom: icc-bwmon: Add bandwidth monitoring driver
:::::: TO: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
:::::: CC: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
--
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