Hi Gilad, I love your patch! Perhaps something to improve: [auto build test WARNING on cryptodev/master] [also build test WARNING on crypto/master robh/for-next v5.9-rc5 next-20200916] [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/Gilad-Ben-Yossef/add-optional-ca... base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master config: arm64-randconfig-r015-20200916 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 9e3842d60351f986d77dfe0a94f76e4fd895f188) 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 # 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(a)intel.com&gt; All warnings (new ones prefixed by >>): cache_params |= FIELD_PREP(mask, val); ^~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:94:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:52:28: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, \ ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ include/linux/compiler_types.h:319:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:307:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:299:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ drivers/crypto/ccree/cc_driver.c:125:18: warning: result of comparison of constant 18446744073709551615 with expression of type 'u32' (aka 'unsigned int') is always false [-Wtautological-constant-out-of-range-compare] cache_params |= FIELD_PREP(mask, val); ^~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:94:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:52:28: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, \ ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ include/linux/compiler_types.h:319:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:307:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:299:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ drivers/crypto/ccree/cc_driver.c:133:18: warning: result of comparison of constant 18446744073709551615 with expression of type 'u32' (aka 'unsigned int') is always false [-Wtautological-constant-out-of-range-compare] cache_params |= FIELD_PREP(mask, val); ^~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:94:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:52:28: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, \ ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ include/linux/compiler_types.h:319:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:307:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:299:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ drivers/crypto/ccree/cc_driver.c:153:15: warning: result of comparison of constant 18446744073709551615 with expression of type 'u32' (aka 'unsigned int') is always false [-Wtautological-constant-out-of-range-compare] ace_const |= FIELD_PREP(mask, val); ^~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:94:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:52:28: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, \ ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ include/linux/compiler_types.h:319:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:307:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:299:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ drivers/crypto/ccree/cc_driver.c:161:15: warning: result of comparison of constant 18446744073709551615 with expression of type 'u32' (aka 'unsigned int') is always false [-Wtautological-constant-out-of-range-compare] ace_const |= FIELD_PREP(mask, val); ^~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:94:3: note: expanded from macro 'FIELD_PREP' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitfield.h:52:28: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, \ ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ include/linux/compiler_types.h:319:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:307:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) # https://github.com/0day-ci/linux/commit/3c84102e6f9ba61d7efbadd1ed836eab9... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Gilad-Ben-Yossef/add-optional-cache-params-from-DT/20200916-152151 git checkout 3c84102e6f9ba61d7efbadd1ed836eab947106c1 vim +120 drivers/crypto/ccree/cc_driver.c 102 103 static void init_cc_dt_params(struct cc_drvdata *drvdata) 104 { 105 struct device *dev = drvdata_to_dev(drvdata); 106 struct device_node *np = dev->of_node; 107 u32 cache_params, ace_const, val, mask; 108 int rc; 109 110 /* register CC_AXIM_CACHE_PARAMS */ 111 cache_params = cc_ioread(drvdata, CC_REG(AXIM_CACHE_PARAMS)); 112 dev_dbg(dev, "Cache params previous: 0x%08X\n", cache_params); 113 114 rc = of_property_read_u32(np, "awcache", &val); 115 if (rc) 116 val = (drvdata->coherent ? 0xb : 0x2); 117 118 mask = CC_GENMASK(CC_AXIM_CACHE_PARAMS_AWCACHE); 119 cache_params &= ~mask; 121 122 /* write AWCACHE also to AWCACHE_LAST */ 123 mask = CC_GENMASK(CC_AXIM_CACHE_PARAMS_AWCACHE_LAST); 124 cache_params &= ~mask; 125 cache_params |= FIELD_PREP(mask, val); 126 127 rc = of_property_read_u32(np, "arcache", &val); 128 if (rc) 129 val = (drvdata->coherent ? 0xb : 0x2); 130 131 mask = CC_GENMASK(CC_AXIM_CACHE_PARAMS_ARCACHE); 132 cache_params &= ~mask; 133 cache_params |= FIELD_PREP(mask, val); 134 135 drvdata->cache_params = cache_params; 136 137 dev_dbg(dev, "Cache params current: 0x%08X\n", cache_params); 138 139 if (drvdata->hw_rev <= CC_HW_REV_710) 140 return; 141 142 /* register CC_AXIM_ACE_CONST */ 143 ace_const = cc_ioread(drvdata, CC_REG(AXIM_ACE_CONST)); 144 dev_dbg(dev, "ACE-const previous: 0x%08X\n", ace_const); 145 146 rc = of_property_read_u32(np, "ardomain", &val); 147 ace_const = cc_ioread(drvdata, CC_REG(AXIM_ACE_CONST)); 148 if (rc) 149 val = (drvdata->coherent ? 0x2 : 0x3); 150 151 mask = CC_GENMASK(CC_AXIM_ACE_CONST_ARDOMAIN); 152 ace_const &= ~mask; 153 ace_const |= FIELD_PREP(mask, val); 154 155 rc = of_property_read_u32(np, "awdomain", &val); 156 if (rc) 157 val = (drvdata->coherent ? 0x2 : 0x3); 158 159 mask = CC_GENMASK(CC_AXIM_ACE_CONST_AWDOMAIN); 160 ace_const &= ~mask; 161 ace_const |= FIELD_PREP(mask, val); 162 163 dev_dbg(dev, "ACE-const current: 0x%08X\n", ace_const); 164 165 drvdata->ace_const = ace_const; 166 } 167 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org