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* [linux-next:master 12994/14198] drivers/iio/accel/bma400_core.c:1056:3: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign]
@ 2022-05-28 11:36 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-05-28 11:36 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 25965 bytes --]

CC: llvm(a)lists.linux.dev
CC: kbuild-all(a)lists.01.org
BCC: lkp(a)intel.com
CC: Linux Memory Management List <linux-mm@kvack.org>
TO: Jagath Jog J <jagathjog1996@gmail.com>
CC: Jonathan Cameron <Jonathan.Cameron@huawei.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   d3fde8ff50ab265749704bd7fbcf70d35235421f
commit: 296d0a4a13be9e03b5eccc33d7ef5980ccd2b4c3 [12994/14198] iio: accel: bma400: Add support for activity and inactivity events
:::::: branch date: 29 hours ago
:::::: commit date: 6 days ago
config: arm-randconfig-c002-20220524 (https://download.01.org/0day-ci/archive/20220528/202205281947.VCVCg9sm-lkp(a)intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0fbe3f3f486e01448121f7931a4ca29fac1504ab)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=296d0a4a13be9e03b5eccc33d7ef5980ccd2b4c3
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 296d0a4a13be9e03b5eccc33d7ef5980ccd2b4c3
        # save the config file
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer 

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>


clang-analyzer warnings: (new ones prefixed by >>)
                                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:767:4: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                           snprintf(buff, BUFF_SZ, "\tNot supported\n");
                           ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:767:4: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                           snprintf(buff, BUFF_SZ, "\tNot supported\n");
                           ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:772:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:772:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:775:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:775:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:780:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:780:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:786:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:786:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:792:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:792:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:798:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:798:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:801:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "\tSerial: 0x%02x%02x%02x%02x\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:801:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "\tSerial: 0x%02x%02x%02x%02x\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:804:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "\tType: 0x%02x\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:804:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "\tType: 0x%02x\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:809:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:809:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:812:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "\tTotal splash space: %d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:812:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "\tTotal splash space: %d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:815:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "\tUsed splash space: %d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:815:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "\tUsed splash space: %d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:820:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:820:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:823:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:823:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:828:3: warning: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling]
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   drivers/hid/hid-picolcd_debugfs.c:828:3: note: Call to function 'snprintf' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'snprintf_s' in case of C11
                   snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n",
                   ^~~~~~~~
   Suppressed 42 warnings (42 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   31 warnings generated.
   Suppressed 31 warnings (31 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   31 warnings generated.
   Suppressed 31 warnings (31 in non-user code).
   Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
   44 warnings generated.
>> drivers/iio/accel/bma400_core.c:1056:3: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign]
                   set_mask_bits(&field_value, BMA400_INT_GEN1_MSK,
                   ^
   include/linux/bitops.h:281:9: note: expanded from macro 'set_mask_bits'
                   old__ = READ_ONCE(*(ptr));                      \
                         ^ ~~~~~~~~~~~~~~~~~
   drivers/iio/accel/bma400_core.c:1051:2: note: Control jumps to 'case IIO_EV_DIR_RISING:'  at line 1052
           switch (dir) {
           ^
   drivers/iio/accel/bma400_core.c:1057:10: note: Taking false branch
                                 FIELD_PREP(BMA400_INT_GEN1_MSK, state));
                                 ^
   include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
                   __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");    \
                   ^
   include/linux/bitfield.h:65:3: note: expanded from macro '__BF_FIELD_CHECK'
                   BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask),          \
                   ^
   include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
   #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                       ^
   include/linux/compiler_types.h:352:2: note: expanded from macro 'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
           ^
   include/linux/compiler_types.h:340:2: note: expanded from macro '_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
           ^
   include/linux/compiler_types.h:332:3: note: expanded from macro '__compiletime_assert'
                   if (!(condition))                                       \
                   ^
   drivers/iio/accel/bma400_core.c:1057:10: note: Loop condition is false.  Exiting loop
                                 FIELD_PREP(BMA400_INT_GEN1_MSK, state));
                                 ^
   include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
                   __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");    \
                   ^
   include/linux/bitfield.h:65:3: note: expanded from macro '__BF_FIELD_CHECK'
                   BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask),          \
                   ^
   include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
   #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                       ^
   include/linux/compiler_types.h:352:2: note: expanded from macro 'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
           ^
   include/linux/compiler_types.h:340:2: note: expanded from macro '_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
           ^
   include/linux/compiler_types.h:324:2: note: expanded from macro '__compiletime_assert'
           do {                                                            \
           ^
   drivers/iio/accel/bma400_core.c:1057:10: note: Taking false branch
                                 FIELD_PREP(BMA400_INT_GEN1_MSK, state));
                                 ^
   include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
                   __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");    \
                   ^
   include/linux/bitfield.h:67:3: note: expanded from macro '__BF_FIELD_CHECK'
                   BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero");    \
                   ^
   include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
   #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                       ^
   include/linux/compiler_types.h:352:2: note: expanded from macro 'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
           ^
   include/linux/compiler_types.h:340:2: note: expanded from macro '_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
           ^
   include/linux/compiler_types.h:332:3: note: expanded from macro '__compiletime_assert'
                   if (!(condition))                                       \
                   ^
   drivers/iio/accel/bma400_core.c:1057:10: note: Loop condition is false.  Exiting loop
                                 FIELD_PREP(BMA400_INT_GEN1_MSK, state));
                                 ^
   include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
                   __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");    \
                   ^
   include/linux/bitfield.h:67:3: note: expanded from macro '__BF_FIELD_CHECK'
                   BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero");    \
                   ^
   include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
   #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
                                       ^
   include/linux/compiler_types.h:352:2: note: expanded from macro 'compiletime_assert'
           _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
           ^
   include/linux/compiler_types.h:340:2: note: expanded from macro '_compiletime_assert'
           __compiletime_assert(condition, msg, prefix, suffix)
           ^
   include/linux/compiler_types.h:324:2: note: expanded from macro '__compiletime_assert'
           do {                                                            \
           ^
   drivers/iio/accel/bma400_core.c:1057:10: note: '?' condition is false
                                 FIELD_PREP(BMA400_INT_GEN1_MSK, state));
                                 ^
   include/linux/bitfield.h:114:3: note: expanded from macro 'FIELD_PREP'
                   __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");    \
                   ^
   include/linux/bitfield.h:68:20: note: expanded from macro '__BF_FIELD_CHECK'
                   BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?           \

vim +1056 drivers/iio/accel/bma400_core.c

e6391ddd68c56a Jagath Jog J 2022-05-05  1044  
296d0a4a13be9e Jagath Jog J 2022-05-05  1045  static int bma400_activity_event_en(struct bma400_data *data,
296d0a4a13be9e Jagath Jog J 2022-05-05  1046  				    enum iio_event_direction dir,
296d0a4a13be9e Jagath Jog J 2022-05-05  1047  				    int state)
296d0a4a13be9e Jagath Jog J 2022-05-05  1048  {
296d0a4a13be9e Jagath Jog J 2022-05-05  1049  	int ret, reg, msk, value, field_value;
296d0a4a13be9e Jagath Jog J 2022-05-05  1050  
296d0a4a13be9e Jagath Jog J 2022-05-05  1051  	switch (dir) {
296d0a4a13be9e Jagath Jog J 2022-05-05  1052  	case IIO_EV_DIR_RISING:
296d0a4a13be9e Jagath Jog J 2022-05-05  1053  		reg = BMA400_GEN1INT_CONFIG0;
296d0a4a13be9e Jagath Jog J 2022-05-05  1054  		msk = BMA400_INT_GEN1_MSK;
296d0a4a13be9e Jagath Jog J 2022-05-05  1055  		value = 2;
296d0a4a13be9e Jagath Jog J 2022-05-05 @1056  		set_mask_bits(&field_value, BMA400_INT_GEN1_MSK,
296d0a4a13be9e Jagath Jog J 2022-05-05  1057  			      FIELD_PREP(BMA400_INT_GEN1_MSK, state));
296d0a4a13be9e Jagath Jog J 2022-05-05  1058  		break;
296d0a4a13be9e Jagath Jog J 2022-05-05  1059  	case IIO_EV_DIR_FALLING:
296d0a4a13be9e Jagath Jog J 2022-05-05  1060  		reg = BMA400_GEN2INT_CONFIG0;
296d0a4a13be9e Jagath Jog J 2022-05-05  1061  		msk = BMA400_INT_GEN2_MSK;
296d0a4a13be9e Jagath Jog J 2022-05-05  1062  		value = 0;
296d0a4a13be9e Jagath Jog J 2022-05-05  1063  		set_mask_bits(&field_value, BMA400_INT_GEN2_MSK,
296d0a4a13be9e Jagath Jog J 2022-05-05  1064  			      FIELD_PREP(BMA400_INT_GEN2_MSK, state));
296d0a4a13be9e Jagath Jog J 2022-05-05  1065  		break;
296d0a4a13be9e Jagath Jog J 2022-05-05  1066  	default:
296d0a4a13be9e Jagath Jog J 2022-05-05  1067  		return -EINVAL;
296d0a4a13be9e Jagath Jog J 2022-05-05  1068  	}
296d0a4a13be9e Jagath Jog J 2022-05-05  1069  
296d0a4a13be9e Jagath Jog J 2022-05-05  1070  	/* Enabling all axis for interrupt evaluation */
296d0a4a13be9e Jagath Jog J 2022-05-05  1071  	ret = regmap_write(data->regmap, reg, 0xF8);
296d0a4a13be9e Jagath Jog J 2022-05-05  1072  	if (ret)
296d0a4a13be9e Jagath Jog J 2022-05-05  1073  		return ret;
296d0a4a13be9e Jagath Jog J 2022-05-05  1074  
296d0a4a13be9e Jagath Jog J 2022-05-05  1075  	/* OR combination of all axis for interrupt evaluation */
296d0a4a13be9e Jagath Jog J 2022-05-05  1076  	ret = regmap_write(data->regmap, reg + BMA400_GEN_CONFIG1_OFF, value);
296d0a4a13be9e Jagath Jog J 2022-05-05  1077  	if (ret)
296d0a4a13be9e Jagath Jog J 2022-05-05  1078  		return ret;
296d0a4a13be9e Jagath Jog J 2022-05-05  1079  
296d0a4a13be9e Jagath Jog J 2022-05-05  1080  	/* Initial value to avoid interrupts while enabling*/
296d0a4a13be9e Jagath Jog J 2022-05-05  1081  	ret = regmap_write(data->regmap, reg + BMA400_GEN_CONFIG2_OFF, 0x0A);
296d0a4a13be9e Jagath Jog J 2022-05-05  1082  	if (ret)
296d0a4a13be9e Jagath Jog J 2022-05-05  1083  		return ret;
296d0a4a13be9e Jagath Jog J 2022-05-05  1084  
296d0a4a13be9e Jagath Jog J 2022-05-05  1085  	/* Initial duration value to avoid interrupts while enabling*/
296d0a4a13be9e Jagath Jog J 2022-05-05  1086  	ret = regmap_write(data->regmap, reg + BMA400_GEN_CONFIG31_OFF, 0x0F);
296d0a4a13be9e Jagath Jog J 2022-05-05  1087  	if (ret)
296d0a4a13be9e Jagath Jog J 2022-05-05  1088  		return ret;
296d0a4a13be9e Jagath Jog J 2022-05-05  1089  
296d0a4a13be9e Jagath Jog J 2022-05-05  1090  	ret = regmap_update_bits(data->regmap, BMA400_INT1_MAP_REG, msk,
296d0a4a13be9e Jagath Jog J 2022-05-05  1091  				 field_value);
296d0a4a13be9e Jagath Jog J 2022-05-05  1092  	if (ret)
296d0a4a13be9e Jagath Jog J 2022-05-05  1093  		return ret;
296d0a4a13be9e Jagath Jog J 2022-05-05  1094  
296d0a4a13be9e Jagath Jog J 2022-05-05  1095  	ret = regmap_update_bits(data->regmap, BMA400_INT_CONFIG0_REG, msk,
296d0a4a13be9e Jagath Jog J 2022-05-05  1096  				 field_value);
296d0a4a13be9e Jagath Jog J 2022-05-05  1097  	if (ret)
296d0a4a13be9e Jagath Jog J 2022-05-05  1098  		return ret;
296d0a4a13be9e Jagath Jog J 2022-05-05  1099  
296d0a4a13be9e Jagath Jog J 2022-05-05  1100  	set_mask_bits(&data->generic_event_en, msk, field_value);
296d0a4a13be9e Jagath Jog J 2022-05-05  1101  	return 0;
296d0a4a13be9e Jagath Jog J 2022-05-05  1102  }
296d0a4a13be9e Jagath Jog J 2022-05-05  1103  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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2022-05-28 11:36 [linux-next:master 12994/14198] drivers/iio/accel/bma400_core.c:1056:3: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] kernel test robot

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