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[openeuler:OLK-6.6 2229/2229] arch/x86/kvm/svm/csv.c:2037: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: c97c1d0165cc29f48725448620197d76e751d734 [2229/2229] KVM: SVM: CSV: Add ioctl API to unpin shared pages of CSV3 guest config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505152346.3HOURWea-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505152346.3HOURWea-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505152346.3HOURWea-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/kvm/svm/csv.c:2037: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Return negative error code on fail, vim +2037 arch/x86/kvm/svm/csv.c 2035 2036 /** > 2037 * Return negative error code on fail, 2038 * or return the number of pages unpinned successfully 2039 */ 2040 static int csv3_unpin_shared_memory(struct kvm *kvm, gpa_t gpa, u32 num_pages) 2041 { 2042 struct kvm_csv_info *csv; 2043 struct shared_page *sp; 2044 gfn_t gfn; 2045 unsigned long i; 2046 int unpin_cnt = 0; 2047 2048 csv = &to_kvm_svm_csv(kvm)->csv_info; 2049 gfn = gpa_to_gfn(gpa); 2050 2051 mutex_lock(&csv->sp_lock); 2052 for (i = 0; i < num_pages; i++, gfn++) { 2053 sp = shared_page_remove(&csv->sp_mgr, gfn); 2054 if (sp) { 2055 unpin_user_page(sp->page); 2056 kmem_cache_free(csv->sp_slab, sp); 2057 csv->sp_mgr.count--; 2058 unpin_cnt++; 2059 } 2060 } 2061 mutex_unlock(&csv->sp_lock); 2062 2063 return unpin_cnt; 2064 } 2065 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] security/integrity/ima/ima_tpm.c:19:6: warning: no previous prototype for function 'ima_pcrread'
by kernel test robot 15 May '25

15 May '25

Hi GONG, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: 40151ef24c1a0f35c5e0442834eb776877e66683 [2229/2229] ima: rot: Prepare TPM as an RoT config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505152125.1bUF0zIv-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505152125.1bUF0zIv-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505152125.1bUF0zIv-lkp@intel.com/ All warnings (new ones prefixed by >>): >> security/integrity/ima/ima_tpm.c:19:6: warning: no previous prototype for function 'ima_pcrread' [-Wmissing-prototypes] 19 | void ima_pcrread(u32 idx, struct tpm_digest *d) | ^ security/integrity/ima/ima_tpm.c:19:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 19 | void ima_pcrread(u32 idx, struct tpm_digest *d) | ^ | static security/integrity/ima/ima_tpm.c:28:5: warning: no previous prototype for function 'ima_pcr_extend' [-Wmissing-prototypes] 28 | int ima_pcr_extend(struct tpm_digest *digests_arg, int pcr) | ^ security/integrity/ima/ima_tpm.c:28:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 28 | int ima_pcr_extend(struct tpm_digest *digests_arg, int pcr) | ^ | static >> security/integrity/ima/ima_tpm.c:41:5: warning: no previous prototype for function 'ima_tpm_init' [-Wmissing-prototypes] 41 | int ima_tpm_init(struct ima_rot *rot) | ^ security/integrity/ima/ima_tpm.c:41:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 41 | int ima_tpm_init(struct ima_rot *rot) | ^ | static >> security/integrity/ima/ima_tpm.c:53:5: warning: no previous prototype for function 'ima_tpm_extend' [-Wmissing-prototypes] 53 | int ima_tpm_extend(struct tpm_digest *digests_arg, const void *args) | ^ security/integrity/ima/ima_tpm.c:53:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 53 | int ima_tpm_extend(struct tpm_digest *digests_arg, const void *args) | ^ | static >> security/integrity/ima/ima_tpm.c:60:5: warning: no previous prototype for function 'ima_tpm_calc_boot_aggregate' [-Wmissing-prototypes] 60 | int ima_tpm_calc_boot_aggregate(struct ima_digest_data *hash) | ^ security/integrity/ima/ima_tpm.c:60:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 60 | int ima_tpm_calc_boot_aggregate(struct ima_digest_data *hash) | ^ | static 5 warnings generated. vim +/ima_pcrread +19 security/integrity/ima/ima_tpm.c 18 > 19 void ima_pcrread(u32 idx, struct tpm_digest *d) 20 { 21 if (!ima_tpm_chip) 22 return; 23 24 if (tpm_pcr_read(ima_tpm_chip, idx, d) != 0) 25 pr_err("Error Communicating to TPM chip\n"); 26 } 27 28 int ima_pcr_extend(struct tpm_digest *digests_arg, int pcr) 29 { 30 int result = 0; 31 32 if (!ima_tpm_chip) 33 return result; 34 35 result = tpm_pcr_extend(ima_tpm_chip, pcr, digests_arg); 36 if (result != 0) 37 pr_err("Error Communicating to TPM chip, result: %d\n", result); 38 return result; 39 } 40 > 41 int ima_tpm_init(struct ima_rot *rot) 42 { 43 ima_tpm_chip = tpm_default_chip(); 44 if (!ima_tpm_chip) 45 return -ENODEV; 46 47 rot->nr_allocated_banks = ima_tpm_chip->nr_allocated_banks; 48 rot->allocated_banks = ima_tpm_chip->allocated_banks; 49 50 return 0; 51 } 52 > 53 int ima_tpm_extend(struct tpm_digest *digests_arg, const void *args) 54 { 55 const int pcr = *(const int *)args; 56 57 return ima_pcr_extend(digests_arg, pcr); 58 } 59 > 60 int ima_tpm_calc_boot_aggregate(struct ima_digest_data *hash) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] drivers/crypto/ccp/hygon/hct.c:39: warning: Function parameter or member 'fmt' not described in 'pr_fmt'
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: c74ae2c5da57becf3f41c596d79b3dd30fa1baa6 [2229/2229] hct: add mediated ccp driver support for hygon crypto technology. config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505151510.gxHsKg6l-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505151510.gxHsKg6l-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505151510.gxHsKg6l-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/crypto/ccp/hygon/hct.c:39: warning: Function parameter or member 'fmt' not described in 'pr_fmt' >> drivers/crypto/ccp/hygon/hct.c:39: warning: expecting prototype for VERSION_STRING modification instructions(). Prototype was for pr_fmt() instead vim +39 drivers/crypto/ccp/hygon/hct.c 31 32 /** 33 * VERSION_STRING modification instructions: 34 * 0.1 -- support hct/mdev mode. 35 * 0.2 -- supoort qemu virtualization. 36 */ 37 38 #undef pr_fmt > 39 #define pr_fmt(fmt) "hct: " fmt 40 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] drivers/crypto/ccp/hygon/ccp-dev-v5.c:206: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: 641a2595f7f5a1b8c5a8ef8ae44b7318c7a6108e [2229/2229] crypto: ccp: support sm2 on Hygon generation 4th CPU config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505151352.6rtSDM7m-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505151352.6rtSDM7m-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505151352.6rtSDM7m-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/crypto/ccp/hygon/ccp-dev-v5.c:206: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Hygon CCP from 4th generation support both sm2 & ecc, vim +206 drivers/crypto/ccp/hygon/ccp-dev-v5.c 204 205 /** > 206 * Hygon CCP from 4th generation support both sm2 & ecc, 207 * but its input content is different from previous version. 208 * the previous requries only one src buffer which include 209 * hash + key. Now, hash and key should passed separately. To 210 * compatible with previous driver, we parse hash and key 211 * from src buffer which same as previous input 212 */ 213 #define SM2_ECC_OPERAND_LEN 32 214 #define SM2_ECC_KG_SRC_SIZE 32 215 #define SM2_ECC_LP_SRC_SIZE 32 216 #define SM2_ECC_SIGN_SRC_SIZE 64 217 #define SM2_ECC_VERIFY_SRC_SIZE 96 218 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] drivers/crypto/ccp/hygon/csv-dev.c:882: warning: Function parameter or member 'api_major' not described in 'user_data_status'
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: 518c81d56c055affc71650b1ad1ba7f86e5ee867 [2229/2229] arch/x86/kvm: Support tkm virtualization config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505150837.6782gtth-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505150837.6782gtth-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505150837.6782gtth-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/crypto/ccp/hygon/csv-dev.c:882: warning: Function parameter or member 'api_major' not described in 'user_data_status' >> drivers/crypto/ccp/hygon/csv-dev.c:882: warning: Function parameter or member 'api_minor' not described in 'user_data_status' >> drivers/crypto/ccp/hygon/csv-dev.c:882: warning: Function parameter or member 'reserved1' not described in 'user_data_status' vim +882 drivers/crypto/ccp/hygon/csv-dev.c 851 852 /** 853 * struct user_data_status - PLATFORM_STATUS command parameters 854 * 855 * @major: major API version 856 * @minor: minor API version 857 * @state: platform state 858 * @owner: self-owned or externally owned 859 * @chip_secure: ES or MP chip 860 * @fw_enc: is this FW is encrypted 861 * @fw_sign: is this FW is signed 862 * @config_es: platform config flags for csv-es 863 * @build: Firmware Build ID for this API version 864 * @bl_version_debug: Bootloader VERSION_DEBUG field 865 * @bl_version_minor: Bootloader VERSION_MINOR field 866 * @bl_version_major: Bootloader VERSION_MAJOR field 867 * @guest_count: number of active guests 868 * @reserved: should set to zero 869 */ 870 struct user_data_status { 871 uint8_t api_major; /* Out */ 872 uint8_t api_minor; /* Out */ 873 uint8_t state; /* Out */ 874 uint8_t owner : 1, /* Out */ 875 chip_secure : 1, /* Out */ 876 fw_enc : 1, /* Out */ 877 fw_sign : 1, /* Out */ 878 reserved1 : 4; /*reserved*/ 879 uint32_t config_es : 1, /* Out */ 880 build : 31; /* Out */ 881 uint32_t guest_count; /* Out */ > 882 } __packed; 883 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] drivers/crypto/ccp/hygon/psp-dev.c:25:10: warning: no previous prototype for function 'atomic64_exchange'
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: fe08767e3a083e73a72f08432bc6fbd864fa7179 [2229/2229] drivers/crypto/ccp: concurrent psp access support between user and kernel space config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505150643.AFNuSCPC-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505150643.AFNuSCPC-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505150643.AFNuSCPC-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/crypto/ccp/hygon/psp-dev.c:25:10: warning: no previous prototype for function 'atomic64_exchange' [-Wmissing-prototypes] 25 | uint64_t atomic64_exchange(uint64_t *dst, uint64_t val) | ^ drivers/crypto/ccp/hygon/psp-dev.c:25:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 25 | uint64_t atomic64_exchange(uint64_t *dst, uint64_t val) | ^ | static >> drivers/crypto/ccp/hygon/psp-dev.c:30:5: warning: no previous prototype for function 'psp_mutex_init' [-Wmissing-prototypes] 30 | int psp_mutex_init(struct psp_mutex *mutex) | ^ drivers/crypto/ccp/hygon/psp-dev.c:30:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 30 | int psp_mutex_init(struct psp_mutex *mutex) | ^ | static drivers/crypto/ccp/hygon/psp-dev.c:38:5: warning: no previous prototype for function 'psp_mutex_trylock' [-Wmissing-prototypes] 38 | int psp_mutex_trylock(struct psp_mutex *mutex) | ^ drivers/crypto/ccp/hygon/psp-dev.c:38:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 38 | int psp_mutex_trylock(struct psp_mutex *mutex) | ^ | static 3 warnings generated. vim +/atomic64_exchange +25 drivers/crypto/ccp/hygon/psp-dev.c 24 > 25 uint64_t atomic64_exchange(uint64_t *dst, uint64_t val) 26 { 27 return xchg(dst, val); 28 } 29 > 30 int psp_mutex_init(struct psp_mutex *mutex) 31 { 32 if (!mutex) 33 return -1; 34 mutex->locked = 0; 35 return 0; 36 } 37 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] drivers/crypto/ccp/hygon/tdm-kernel-guard.c:151:5: warning: no previous prototype for function 'tdm_service_run'
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: 3ad98583441f7c8a2553e1e8d6340ed4397033e2 [2229/2229] crypto: tdm: Support dynamic protection for SCT and IDT by HYGON TDM config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505150403.myIeqBlp-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505150403.myIeqBlp-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505150403.myIeqBlp-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/crypto/ccp/hygon/tdm-kernel-guard.c:151:5: warning: no previous prototype for function 'tdm_service_run' [-Wmissing-prototypes] 151 | int tdm_service_run(struct tdm_security_enhance *data) | ^ drivers/crypto/ccp/hygon/tdm-kernel-guard.c:151:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 151 | int tdm_service_run(struct tdm_security_enhance *data) | ^ | static >> drivers/crypto/ccp/hygon/tdm-kernel-guard.c:212:5: warning: no previous prototype for function 'tdm_service_exit' [-Wmissing-prototypes] 212 | int tdm_service_exit(struct tdm_security_enhance *data) | ^ drivers/crypto/ccp/hygon/tdm-kernel-guard.c:212:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 212 | int tdm_service_exit(struct tdm_security_enhance *data) | ^ | static >> drivers/crypto/ccp/hygon/tdm-kernel-guard.c:243:15: warning: no previous prototype for function 'kprobe_symbol_address_byname' [-Wmissing-prototypes] 243 | unsigned long kprobe_symbol_address_byname(const char *name) | ^ drivers/crypto/ccp/hygon/tdm-kernel-guard.c:243:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 243 | unsigned long kprobe_symbol_address_byname(const char *name) | ^ | static 3 warnings generated. vim +/tdm_service_run +151 drivers/crypto/ccp/hygon/tdm-kernel-guard.c 150 > 151 int tdm_service_run(struct tdm_security_enhance *data) 152 { 153 int ret = 0; 154 struct addr_range_info *addr_range = NULL; 155 156 // Allocate memory for addr_range 157 addr_range = kzalloc(sizeof(struct addr_range_info) + sizeof(struct addr_info), GFP_KERNEL); 158 if (!addr_range) { 159 ret = -DYN_ERR_MEM; 160 pr_err("addr_range kzalloc memory failed\n"); 161 goto end; 162 } 163 164 // Fill in addr_range 165 addr_range->count = 1; 166 addr_range->addr[0].addr_start = data->vaddr; 167 addr_range->addr[0].length = data->size; 168 data->mem_range = addr_range; 169 170 // Context configuration 171 data->context |= TASK_CREATE_VADDR; 172 173 // Allocate memory for authcode 174 data->authcode = kzalloc(sizeof(struct authcode_2b) + AUTHCODE_MAX, GFP_KERNEL); 175 if (!data->authcode) { 176 ret = -DYN_ERR_MEM; 177 pr_err("authcode_2b kzalloc memory failed\n"); 178 goto free_addr_range_info; 179 } 180 181 data->authcode->len = AUTHCODE_MAX; 182 183 // Measurement data configuration 184 data->mdata.hash_algo = HASH_ALGO_SM3; 185 data->mdata.period_ms = 0; 186 ret = calc_expected_hash((uint8_t *)data->vaddr, data->size, 187 data->mdata.expected_measurement); 188 if (ret) { 189 pr_err("calculate expected hash failed!\n"); 190 goto free_authcode; 191 } 192 193 // Create and start tdm task 194 ret = tdm_task_create_and_run(data); 195 if (ret) { 196 pr_err("tdm_task_create_and_run failed!\n"); 197 goto free_authcode; 198 } 199 200 return ret; 201 202 free_authcode: 203 kfree(data->authcode); 204 data->authcode = NULL; 205 free_addr_range_info: 206 kfree(data->mem_range); 207 data->mem_range = NULL; 208 end: 209 return ret; 210 } 211 > 212 int tdm_service_exit(struct tdm_security_enhance *data) 213 { 214 int ret = 0; 215 int task_status = 0; 216 217 task_status = psp_startstop_measure_task(data->task_id, data->authcode, false); 218 if (task_status < 0) { 219 ret = task_status; 220 pr_err("task_id %d stop failed with 0x%x\n", data->task_id, ret); 221 goto end; 222 } 223 224 // Waiting for the task to end 225 msleep(40); 226 227 psp_destroy_measure_task(data->task_id, data->authcode); 228 229 kfree(data->authcode); 230 data->authcode = NULL; 231 kfree(data->mem_range); 232 data->mem_range = NULL; 233 end: 234 return ret; 235 } 236 237 #if !IS_BUILTIN(CONFIG_TDM_KERNEL_GUARD) 238 static int p_tmp_kprobe_handler(struct kprobe *p_ri, struct pt_regs *p_regs) 239 { 240 return 0; 241 } 242 > 243 unsigned long kprobe_symbol_address_byname(const char *name) 244 { 245 int p_ret; 246 struct kprobe p_kprobe; 247 unsigned long addr = 0; 248 249 memset(&p_kprobe, 0, sizeof(p_kprobe)); 250 251 p_kprobe.pre_handler = p_tmp_kprobe_handler; 252 p_kprobe.symbol_name = name; 253 254 p_ret = register_kprobe(&p_kprobe); 255 if (p_ret < 0) { 256 pr_err("register_kprobe error [%d] :(\n", p_ret); 257 return 0; 258 } 259 260 addr = (unsigned long)p_kprobe.addr; 261 unregister_kprobe(&p_kprobe); 262 263 return addr; 264 } 265 #endif 266 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] drivers/crypto/ccp/hygon/tdm-dev.c:94:6: warning: variable 'ret' set but not used
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: a1dd4972da4e66d9a9d1a89b3dfd8f742c20193b [2229/2229] crypto: tdm: Add Hygon TDM driver config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505150253.nSMsteDG-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505150253.nSMsteDG-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505150253.nSMsteDG-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/crypto/ccp/hygon/tdm-dev.c:94:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 94 | int ret = 0; | ^ >> drivers/crypto/ccp/hygon/tdm-dev.c:606:20: warning: variable 'head' set but not used [-Wunused-but-set-variable] 606 | struct list_head *head = NULL; | ^ 2 warnings generated. vim +/ret +94 drivers/crypto/ccp/hygon/tdm-dev.c 91 92 static int list_enqueue(void *entry) 93 { > 94 int ret = 0; 95 struct list_head *head, *entry_list = NULL; 96 rwlock_t *lock = NULL; 97 98 if (!entry) { 99 ret = -DYN_NULL_POINTER; 100 pr_err("Null pointer\n"); 101 goto end; 102 } 103 104 head = &dyn_head.head; 105 lock = &dyn_head.lock; 106 entry_list = &(((struct tdm_task_ctx *)entry)->list); 107 108 write_lock(lock); 109 if (entry_list) 110 list_add_tail(entry_list, head); 111 write_unlock(lock); 112 113 end: 114 return 0; 115 } 116 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] arch/x86/kernel/head64.c:382:12: warning: no previous prototype for function 'early_clflush_bss_decrypted_section'
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: ca0c1fa1ec4b6d9040cec7e543d50a93fc88d4c6 [2229/2229] x86/head/64: Flush caches for .bss..decrypted section after CR3 switches to early_top_pgt config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250515/202505150041.GhGsIYWp-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250515/202505150041.GhGsIYWp-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505150041.GhGsIYWp-lkp@intel.com/ Note: functions only called from assembly code should be annotated with the asmlinkage attribute All warnings (new ones prefixed by >>): >> arch/x86/kernel/head64.c:382:12: warning: no previous prototype for function 'early_clflush_bss_decrypted_section' [-Wmissing-prototypes] 382 | void __ref early_clflush_bss_decrypted_section(void) | ^ arch/x86/kernel/head64.c:382:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 382 | void __ref early_clflush_bss_decrypted_section(void) | ^ | static 1 warning generated. vim +/early_clflush_bss_decrypted_section +382 arch/x86/kernel/head64.c 381 > 382 void __ref early_clflush_bss_decrypted_section(void) 383 { 384 unsigned long vaddr, vaddr_end; 385 char *cl, *start, *end; 386 387 /* Only allow bsp flush these caches and the bsp must at early boot stage */ 388 if (bsp_flush_bss_decrypted_section_handled) 389 return; 390 391 if (read_cr3_pa() != __pa_nodebug(early_top_pgt)) 392 return; 393 394 /* Only Hygon CSV guest should do the clflush */ 395 if (!__should_do_clflush()) 396 goto handled; 397 398 /* 399 * The memory region of .bss..decrypted section maybe mapped 400 * with encryption in earlier stage. If the correspond stale 401 * caches lives in earlier stage were not flushed before we 402 * access that memory region, then Linux will crash later 403 * because the stale caches will pollute the memory. So we 404 * need flush the caches with encrypted mapping before we 405 * access .bss..decrypted section. 406 * 407 * The function __startup_64() have already filled the 408 * encrypted mapping for .bss..decrypted section, use that 409 * mapping here. 410 */ 411 vaddr = (unsigned long)__start_bss_decrypted - 412 __START_KERNEL_map + phys_base; 413 vaddr_end = (unsigned long)__end_bss_decrypted - 414 __START_KERNEL_map + phys_base; 415 416 /* Hardcode cl-size to 64 at this stage. */ 417 start = (char *)(vaddr & ~63); 418 end = (char *)((vaddr_end + 63) & ~63); 419 420 asm volatile("mfence" : : : "memory"); 421 for (cl = start; cl != end; cl += 64) 422 clflush(cl); 423 asm volatile("mfence" : : : "memory"); 424 425 handled: 426 bsp_flush_bss_decrypted_section_handled = true; 427 } 428 #endif 429 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 2229/2229] arch/x86/kvm/svm/sev.c:2198:6: warning: no previous prototype for function 'sev_install_hooks'
by kernel test robot 15 May '25

15 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: a53913bacac4876eee9ce118b3101dff842318ef commit: 0f13b8634792cff1f2fb18bf35e5a24d7a8cbf8e [2229/2229] KVM: x86: Support VM_ATTESTATION hypercall config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250514/202505142149.OSrCD2AH-lkp@…) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250514/202505142149.OSrCD2AH-lkp@…) 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 <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202505142149.OSrCD2AH-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/kvm/svm/sev.c:2198:6: warning: no previous prototype for function 'sev_install_hooks' [-Wmissing-prototypes] 2198 | void sev_install_hooks(void) | ^ arch/x86/kvm/svm/sev.c:2198:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2198 | void sev_install_hooks(void) | ^ | static 1 warning generated. -- >> arch/x86/kvm/svm/csv.c:30:5: warning: no previous prototype for function 'csv_vm_attestation' [-Wmissing-prototypes] 30 | int csv_vm_attestation(struct kvm *kvm, unsigned long gpa, unsigned long len) | ^ arch/x86/kvm/svm/csv.c:30:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 30 | int csv_vm_attestation(struct kvm *kvm, unsigned long gpa, unsigned long len) | ^ | static 1 warning generated. vim +/sev_install_hooks +2198 arch/x86/kvm/svm/sev.c 2195 2196 #ifdef CONFIG_HYGON_CSV 2197 /* Code to set all of the function and vaiable pointers */ > 2198 void sev_install_hooks(void) 2199 { 2200 hygon_kvm_hooks.sev_issue_cmd = sev_issue_cmd; 2201 hygon_kvm_hooks.get_num_contig_pages = get_num_contig_pages; 2202 hygon_kvm_hooks.sev_pin_memory = sev_pin_memory; 2203 hygon_kvm_hooks.sev_unpin_memory = sev_unpin_memory; 2204 2205 hygon_kvm_hooks.sev_hooks_installed = true; 2206 } 2207 #endif 2208 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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