From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: sound/soc/soc-utils-test.c:125:34: warning: use of uninitialized value '((int *)_13 = PHI <&MEM <struct snd_pcm_hw_params> [(void *)¶ms + 4B](2), _48(3)>)[2]' [CWE-457]
Date: Mon, 15 Aug 2022 09:32:26 +0800 [thread overview]
Message-ID: <202208150941.ST9tLAb3-lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 9097 bytes --]
::::::
:::::: Manual check reason: "low confidence bisect report"
:::::: Manual check reason: "low confidence static check warning: sound/soc/soc-utils-test.c:125:34: warning: use of uninitialized value '((int *)_13 = PHI <&MEM <struct snd_pcm_hw_params> [(void *)¶ms + 4B](2), _48(3)>)[2]' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]"
::::::
BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Richard Fitzgerald <rf@opensource.cirrus.com>
CC: Mark Brown <broonie@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 568035b01cfb107af8d2e4bd2fb9aea22cf5b868
commit: 89342fa38bbaade51584f255eee5cd43621f4e10 ASoC: soc-utils: Add kunit test for snd_soc_tdm_params_to_bclk()
date: 4 months ago
:::::: branch date: 3 hours ago
:::::: commit date: 4 months ago
config: arm-randconfig-c002-20220810 (https://download.01.org/0day-ci/archive/20220815/202208150941.ST9tLAb3-lkp(a)intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=89342fa38bbaade51584f255eee5cd43621f4e10
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 89342fa38bbaade51584f255eee5cd43621f4e10
# save the config file
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross ARCH=arm KBUILD_USERCFLAGS='-fanalyzer -Wno-error'
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
gcc-analyzer warnings: (new ones prefixed by >>)
sound/soc/soc-utils-test.c: In function 'test_tdm_params_to_bclk_one':
>> sound/soc/soc-utils-test.c:125:34: warning: use of uninitialized value '((int *)_13 = PHI <&MEM <struct snd_pcm_hw_params> [(void *)¶ms + 4B](2), _48(3)>)[2]' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]
125 | struct snd_pcm_hw_params params;
| ^~~~~~
'test_tdm_params_to_bclk_one': events 1-4
|
| 125 | struct snd_pcm_hw_params params;
| | ^~~~~~
| | |
| | (1) region created on stack here
| | (2) following 'true' branch...
| | (3) ...to here
| | (4) use of uninitialized value '((int *)_13 = PHI <&MEM <struct snd_pcm_hw_params> [(void *)¶ms + 4B](2), _48(3)>)[2]' here
|
>> sound/soc/soc-utils-test.c:125:34: warning: use of uninitialized value '((int *)_13 = PHI <&MEM <struct snd_pcm_hw_params> [(void *)¶ms + 4B](2), _48(3)>)[2]' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]
125 | struct snd_pcm_hw_params params;
| ^~~~~~
'test_tdm_params_to_bclk': event 1
|
| 144 | static void test_tdm_params_to_bclk(struct kunit *test)
| | ^~~~~~~~~~~~~~~~~~~~~~~
| | |
| | (1) entry to 'test_tdm_params_to_bclk'
|
'test_tdm_params_to_bclk': events 2-4
|
| 148 | for (i = 0; i < ARRAY_SIZE(tdm_params_to_bclk_cases); ++i) {
| 149 | test_tdm_params_to_bclk_one(test,
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| | |
| | (4) calling 'test_tdm_params_to_bclk_one' from 'test_tdm_params_to_bclk'
| 150 | tdm_params_to_bclk_cases[i].rate,
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| | |
| | (3) ...to here
| 151 | tdm_params_to_bclk_cases[i].fmt,
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| 152 | tdm_params_to_bclk_cases[i].channels,
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| 153 | tdm_params_to_bclk_cases[i].tdm_width,
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| 154 | tdm_params_to_bclk_cases[i].tdm_slots,
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| 155 | tdm_params_to_bclk_cases[i].slot_multiple,
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| 156 | tdm_params_to_bclk_cases[i].bclk);
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
+--> 'test_tdm_params_to_bclk_one': events 5-9
|
| 118 | static void test_tdm_params_to_bclk_one(struct kunit *test,
| | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
| | |
| | (5) entry to 'test_tdm_params_to_bclk_one'
|......
| 125 | struct snd_pcm_hw_params params;
| | ~~~~~~
| | |
| | (6) region created on stack here
| | (7) following 'true' branch...
| | (8) ...to here
| | (9) use of uninitialized value '((int *)_13 = PHI <&MEM <struct snd_pcm_hw_params> [(void *)¶ms + 4B](2), _48(3)>)[2]' here
|
vim +125 sound/soc/soc-utils-test.c
89342fa38bbaad Richard Fitzgerald 2022-04-05 117
89342fa38bbaad Richard Fitzgerald 2022-04-05 118 static void test_tdm_params_to_bclk_one(struct kunit *test,
89342fa38bbaad Richard Fitzgerald 2022-04-05 119 unsigned int rate, snd_pcm_format_t fmt,
89342fa38bbaad Richard Fitzgerald 2022-04-05 120 unsigned int channels,
89342fa38bbaad Richard Fitzgerald 2022-04-05 121 unsigned int tdm_width, unsigned int tdm_slots,
89342fa38bbaad Richard Fitzgerald 2022-04-05 122 unsigned int slot_multiple,
89342fa38bbaad Richard Fitzgerald 2022-04-05 123 unsigned int expected_bclk)
89342fa38bbaad Richard Fitzgerald 2022-04-05 124 {
89342fa38bbaad Richard Fitzgerald 2022-04-05 @125 struct snd_pcm_hw_params params;
89342fa38bbaad Richard Fitzgerald 2022-04-05 126 int got_bclk;
89342fa38bbaad Richard Fitzgerald 2022-04-05 127
89342fa38bbaad Richard Fitzgerald 2022-04-05 128 _snd_pcm_hw_params_any(¶ms);
89342fa38bbaad Richard Fitzgerald 2022-04-05 129 snd_mask_none(hw_param_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT));
89342fa38bbaad Richard Fitzgerald 2022-04-05 130 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->min = rate;
89342fa38bbaad Richard Fitzgerald 2022-04-05 131 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE)->max = rate;
89342fa38bbaad Richard Fitzgerald 2022-04-05 132 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->min = channels;
89342fa38bbaad Richard Fitzgerald 2022-04-05 133 hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS)->max = channels;
89342fa38bbaad Richard Fitzgerald 2022-04-05 134 params_set_format(¶ms, fmt);
89342fa38bbaad Richard Fitzgerald 2022-04-05 135
89342fa38bbaad Richard Fitzgerald 2022-04-05 136 got_bclk = snd_soc_tdm_params_to_bclk(¶ms, tdm_width, tdm_slots, slot_multiple);
89342fa38bbaad Richard Fitzgerald 2022-04-05 137 pr_debug("%s: r=%u sb=%u ch=%u tw=%u ts=%u sm=%u expected=%u got=%d\n",
89342fa38bbaad Richard Fitzgerald 2022-04-05 138 __func__,
89342fa38bbaad Richard Fitzgerald 2022-04-05 139 rate, params_width(¶ms), channels, tdm_width, tdm_slots, slot_multiple,
89342fa38bbaad Richard Fitzgerald 2022-04-05 140 expected_bclk, got_bclk);
89342fa38bbaad Richard Fitzgerald 2022-04-05 141 KUNIT_ASSERT_EQ(test, expected_bclk, (unsigned int)got_bclk);
89342fa38bbaad Richard Fitzgerald 2022-04-05 142 }
89342fa38bbaad Richard Fitzgerald 2022-04-05 143
--
0-DAY CI Kernel Test Service
https://01.org/lkp
next reply other threads:[~2022-08-15 1:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-15 1:32 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-08-15 12:40 sound/soc/soc-utils-test.c:125:34: warning: use of uninitialized value '((int *)_13 = PHI <&MEM <struct snd_pcm_hw_params> [(void *)¶ms + 4B](2), _48(3)>)[2]' [CWE-457] kernel test robot
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