Re: [PATCH v2 3/7] ASoC: codec: lpass-rx-macro: add dapm widgets and route

From: kernel test robot
Date: Tue Feb 09 2021 - 01:37:12 EST


Hi Srinivas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on asoc/for-next]
[also build test WARNING on v5.11-rc6 next-20210125]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Srinivas-Kandagatla/ASoC-codecs-add-support-for-LPASS-Codec-TX-and-RX-macros/20210209-084643
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: arm64-randconfig-r013-20210209 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
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 arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/0day-ci/linux/commit/bac854a0c3da12f3b44c7b2f3e89843adb6e585e
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Srinivas-Kandagatla/ASoC-codecs-add-support-for-LPASS-Codec-TX-and-RX-macros/20210209-084643
git checkout bac854a0c3da12f3b44c7b2f3e89843adb6e585e
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64

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

All warnings (new ones prefixed by >>):

>> sound/soc/codecs/lpass-rx-macro.c:2439:2: warning: variable 'hph_lut_bypass_reg' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized]
default:
^~~~~~~
sound/soc/codecs/lpass-rx-macro.c:2443:6: note: uninitialized use occurs here
if (hph_lut_bypass_reg && SND_SOC_DAPM_EVENT_ON(event)) {
^~~~~~~~~~~~~~~~~~
sound/soc/codecs/lpass-rx-macro.c:2427:24: note: initialize the variable 'hph_lut_bypass_reg' to silence this warning
u16 hph_lut_bypass_reg;
^
= 0
1 warning generated.


vim +/hph_lut_bypass_reg +2439 sound/soc/codecs/lpass-rx-macro.c

2422
2423 static void rx_macro_hphdelay_lutbypass(struct snd_soc_component *component,
2424 struct rx_macro *rx,
2425 u16 interp_idx, int event)
2426 {
2427 u16 hph_lut_bypass_reg;
2428 u16 hph_comp_ctrl7;
2429
2430 switch (interp_idx) {
2431 case INTERP_HPHL:
2432 hph_lut_bypass_reg = CDC_RX_TOP_HPHL_COMP_LUT;
2433 hph_comp_ctrl7 = CDC_RX_COMPANDER0_CTL7;
2434 break;
2435 case INTERP_HPHR:
2436 hph_lut_bypass_reg = CDC_RX_TOP_HPHR_COMP_LUT;
2437 hph_comp_ctrl7 = CDC_RX_COMPANDER1_CTL7;
2438 break;
> 2439 default:
2440 break;
2441 }
2442
2443 if (hph_lut_bypass_reg && SND_SOC_DAPM_EVENT_ON(event)) {
2444 if (interp_idx == INTERP_HPHL) {
2445 if (rx->is_ear_mode_on)
2446 snd_soc_component_write_field(component,
2447 CDC_RX_RX0_RX_PATH_CFG1,
2448 CDC_RX_RX0_HPH_L_EAR_SEL_MASK, 0x1);
2449 else
2450 snd_soc_component_write_field(component,
2451 hph_lut_bypass_reg,
2452 CDC_RX_TOP_HPH_LUT_BYPASS_MASK, 1);
2453 } else {
2454 snd_soc_component_write_field(component, hph_lut_bypass_reg,
2455 CDC_RX_TOP_HPH_LUT_BYPASS_MASK, 1);
2456 }
2457 if (rx->hph_pwr_mode)
2458 snd_soc_component_write_field(component, hph_comp_ctrl7,
2459 CDC_RX_COMPANDER1_HPH_LOW_PWR_MODE_MASK, 0x0);
2460 }
2461
2462 if (hph_lut_bypass_reg && SND_SOC_DAPM_EVENT_OFF(event)) {
2463 snd_soc_component_write_field(component,
2464 CDC_RX_RX0_RX_PATH_CFG1,
2465 CDC_RX_RX0_HPH_L_EAR_SEL_MASK, 0x0);
2466 snd_soc_component_update_bits(component, hph_lut_bypass_reg,
2467 CDC_RX_TOP_HPH_LUT_BYPASS_MASK, 0);
2468 snd_soc_component_write_field(component, hph_comp_ctrl7,
2469 CDC_RX_COMPANDER1_HPH_LOW_PWR_MODE_MASK, 0x1);
2470 }
2471 }
2472

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

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