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charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260401-coco-v1-1-b9c3072e2d9c@redhat.com> Hi Marc-André, [This is a private test report for your RFC patch.] kernel test robot noticed the following build errors: [auto build test ERROR on c369299895a591d96745d6492d4888259b004a9e] url: https://github.com/intel-lab-lkp/linux/commits/Marc-Andr-Lureau/virtio-mem-support-Confidential-Computing-CoCo-environments/20260414-201359 base: c369299895a591d96745d6492d4888259b004a9e patch link: https://lore.kernel.org/r/20260401-coco-v1-1-b9c3072e2d9c%40redhat.com patch subject: [PATCH RFC] virtio-mem: support Confidential Computing (CoCo) environments config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20260415/202604152042.Ddpp3f0z-lkp@intel.com/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260415/202604152042.Ddpp3f0z-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202604152042.Ddpp3f0z-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/virtio/virtio_mem.c:876:9: error: call to undeclared function 'set_memory_encrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 876 | return set_memory_encrypted((unsigned long)__va(addr), PFN_DOWN(size)); | ^ >> drivers/virtio/virtio_mem.c:881:9: error: call to undeclared function 'set_memory_decrypted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 881 | return set_memory_decrypted((unsigned long)__va(addr), PFN_DOWN(size)); | ^ 2 errors generated. vim +/set_memory_encrypted +876 drivers/virtio/virtio_mem.c 868 869 /* 870 * In CoCo (TDX, SEV-SNP) environments, hotplugged memory must be explicitly 871 * accepted before use (private/encrypted), and converted to shared/decrypted 872 * before returning to the hypervisor on unplug. 873 */ 874 static int virtio_mem_coco_set_encrypted(uint64_t addr, uint64_t size) 875 { > 876 return set_memory_encrypted((unsigned long)__va(addr), PFN_DOWN(size)); 877 } 878 879 static int virtio_mem_coco_set_decrypted(uint64_t addr, uint64_t size) 880 { > 881 return set_memory_decrypted((unsigned long)__va(addr), PFN_DOWN(size)); 882 } 883 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki