CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Haren Myneni <ha...@linux.ibm.com> CC: Michael Ellerman <m...@ellerman.id.au>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0678afa6055d14799c1dc1eee47c8025eba56cab commit: b4ba22114c78de48fda3818f569f75e97d58c719 crypto/nx: Get NX capabilities for GZIP coprocessor type date: 12 months ago :::::: branch date: 16 hours ago :::::: commit date: 12 months ago config: powerpc64-randconfig-m031-20220611 (https://download.01.org/0day-ci/archive/20220612/202206121940.30tye8nk-...@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 11.3.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <l...@intel.com> Reported-by: Dan Carpenter <dan.carpen...@oracle.com> smatch warnings: drivers/crypto/nx/nx-common-pseries.c:1146 nxcop_get_capabilities() error: uninitialized symbol 'hv_nxc'. vim +/hv_nxc +1146 drivers/crypto/nx/nx-common-pseries.c 0e16aafb12046e1 drivers/crypto/nx/nx-842.c Seth Jennings 2012-07-19 1092 b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1093 /* b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1094 * Get NX capabilities from the hypervisor. b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1095 * Only NXGZIP capabilities are provided by the hypersvisor right b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1096 * now and these values are available to user space with sysfs. b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1097 */ b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1098 static void __init nxcop_get_capabilities(void) b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1099 { b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1100 struct hv_vas_all_caps *hv_caps; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1101 struct hv_nx_cop_caps *hv_nxc; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1102 int rc; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1103 b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1104 hv_caps = kmalloc(sizeof(*hv_caps), GFP_KERNEL); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1105 if (!hv_caps) b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1106 return; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1107 /* b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1108 * Get NX overall capabilities with feature type=0 b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1109 */ b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1110 rc = h_query_vas_capabilities(H_QUERY_NX_CAPABILITIES, 0, b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1111 (u64)virt_to_phys(hv_caps)); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1112 if (rc) b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1113 goto out; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1114 b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1115 caps_feat = be64_to_cpu(hv_caps->feat_type); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1116 /* b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1117 * NX-GZIP feature available b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1118 */ b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1119 if (caps_feat & VAS_NX_GZIP_FEAT_BIT) { b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1120 hv_nxc = kmalloc(sizeof(*hv_nxc), GFP_KERNEL); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1121 if (!hv_nxc) b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1122 goto out; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1123 /* b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1124 * Get capabilities for NX-GZIP feature b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1125 */ b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1126 rc = h_query_vas_capabilities(H_QUERY_NX_CAPABILITIES, b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1127 VAS_NX_GZIP_FEAT, b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1128 (u64)virt_to_phys(hv_nxc)); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1129 } else { b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1130 pr_err("NX-GZIP feature is not available\n"); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1131 rc = -EINVAL; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1132 } b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1133 b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1134 if (!rc) { b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1135 nx_cop_caps.descriptor = be64_to_cpu(hv_nxc->descriptor); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1136 nx_cop_caps.req_max_processed_len = b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1137 be64_to_cpu(hv_nxc->req_max_processed_len); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1138 nx_cop_caps.min_compress_len = b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1139 be64_to_cpu(hv_nxc->min_compress_len); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1140 nx_cop_caps.min_decompress_len = b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1141 be64_to_cpu(hv_nxc->min_decompress_len); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1142 } else { b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1143 caps_feat = 0; b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1144 } b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1145 b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 @1146 kfree(hv_nxc); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1147 out: b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1148 kfree(hv_caps); b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1149 } b4ba22114c78de4 drivers/crypto/nx/nx-common-pseries.c Haren Myneni 2021-06-17 1150 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
