Hi Stefan, Thank you for the patch! Yet something to improve: [auto build test ERROR on char-misc/char-misc-testing] [also build test ERROR on linus/master v5.19-rc4 next-20220628] [cannot apply to robh/for-next] [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/intel-lab-lkp/linux/commits/Stefan-Berger/tpm-Preserve-TPM-measurement-log-across-kexec/20220616-234240 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 0a35780c755ccec097d15c6b4ff8b246a89f1689 config: parisc-randconfig-r012-20220627 (https://download.01.org/0day-ci/archive/20220629/202206290021.AodC96Vc-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 11.3.0 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://github.com/intel-lab-lkp/linux/commit/c28e0f7321d0b7245454e811a3dd0f2134d9dd74 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Stefan-Berger/tpm-Preserve-TPM-measurement-log-across-kexec/20220616-234240 git checkout c28e0f7321d0b7245454e811a3dd0f2134d9dd74 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash drivers/of/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/of/kexec.c: In function 'tpm_add_kexec_buffer': >> drivers/of/kexec.c:371:18: error: implicit declaration of function 'vmalloc'; did you mean 'kvmalloc'? [-Werror=implicit-function-declaration] 371 | buffer = vmalloc(size); | ^~~~~~~ | kvmalloc drivers/of/kexec.c:371:16: warning: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 371 | buffer = vmalloc(size); | ^ drivers/of/kexec.c: In function 'tpm_post_kexec': drivers/of/kexec.c:446:42: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 446 | *(u64 *)newprop->value = (u64)phyaddr; | ^ cc1: some warnings being treated as errors vim +371 drivers/of/kexec.c 349 350 void tpm_add_kexec_buffer(struct kimage *image) 351 { 352 struct kexec_buf kbuf = { .image = image, .buf_align = 1, 353 .buf_min = 0, .buf_max = ULONG_MAX, 354 .top_down = true }; 355 struct device_node *np; 356 void *buffer; 357 u32 size; 358 u64 base; 359 int ret; 360 361 if (!IS_ENABLED(CONFIG_PPC64)) 362 return; 363 364 np = of_find_node_by_name(NULL, "vtpm"); 365 if (!np) 366 return; 367 368 if (of_tpm_get_sml_parameters(np, &base, &size) < 0) 369 return; 370 > 371 buffer = vmalloc(size); 372 if (!buffer) 373 return; 374 memcpy(buffer, __va(base), size); 375 376 kbuf.buffer = buffer; 377 kbuf.bufsz = size; 378 kbuf.memsz = size; 379 ret = kexec_add_buffer(&kbuf); 380 if (ret) { 381 pr_err("Error passing over kexec TPM measurement log buffer: %d\n", 382 ret); 383 return; 384 } 385 386 image->tpm_buffer = buffer; 387 image->tpm_buffer_addr = kbuf.mem; 388 image->tpm_buffer_size = size; 389 } 390 -- 0-DAY CI Kernel Test Service https://01.org/lkp