Hi Andre, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.10-rc2 next-20201105] [cannot apply to arm64/for-next/core kvmarm/next arm-perf/for-next/perf] [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/Andre-Przywara/ARM-arm64-Add-SMCCC-TRNG-entropy-service/20201105-205934 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 4ef8451b332662d004df269d4cdeb7d9f31419b5 config: arm-randconfig-s031-20201105 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-76-gf680124b-dirty # https://github.com/0day-ci/linux/commit/1f0c18ec0b7aa0a67d7cdea2b1beb5e7b38c5f4b git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Andre-Przywara/ARM-arm64-Add-SMCCC-TRNG-entropy-service/20201105-205934 git checkout 1f0c18ec0b7aa0a67d7cdea2b1beb5e7b38c5f4b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: drivers/char/random.o: in function `arch_get_random_seed_long': >> arch/arm/include/asm/archrandom.h:48: undefined reference to `arm_smccc_1_1_get_conduit' >> arm-linux-gnueabi-ld: arch/arm/include/asm/archrandom.h:48: undefined reference to `smccc_trng_available' vim +48 arch/arm/include/asm/archrandom.h 42 43 static inline bool __must_check arch_get_random_seed_long(unsigned long *v) 44 { 45 struct arm_smccc_res res; 46 47 if (smccc_trng_available) { > 48 arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND32, 8 * sizeof(*v), &res); 49 50 if (res.a0 != 0) 51 return false; 52 53 *v = res.a3; 54 return true; 55 } 56 57 return false; 58 } 59 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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