Messages in this thread | | | Date | Thu, 18 Aug 2022 13:48:28 +0300 | From | Dan Carpenter <> | Subject | [intel-tdx:kvm-upstream-workaround 150/308] arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'. |
| |
tree: https://github.com/intel/tdx.git kvm-upstream-workaround head: 85c097fdd1667a842a9e75d8f658fc16bd72981a commit: a3b11dafa9058bdecc235b9c02aaae2d6b39c24d [150/308] KVM: Update lpage info when private/shared memory are mixed config: x86_64-randconfig-m001-20220815 (https://download.01.org/0day-ci/archive/20220817/202208170542.XpJ3DGlU-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings: arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.
vim +/entry +7276 arch/x86/kvm/mmu/mmu.c
a3b11dafa9058b Chao Peng 2022-07-20 7265 static bool __mem_attr_is_mixed(struct kvm *kvm, gfn_t start, gfn_t end) a3b11dafa9058b Chao Peng 2022-07-20 7266 { a3b11dafa9058b Chao Peng 2022-07-20 7267 XA_STATE(xas, &kvm->mem_attr_array, start); a3b11dafa9058b Chao Peng 2022-07-20 7268 bool mixed = false; a3b11dafa9058b Chao Peng 2022-07-20 7269 gfn_t gfn = start; a3b11dafa9058b Chao Peng 2022-07-20 7270 void *s_entry; a3b11dafa9058b Chao Peng 2022-07-20 7271 void *entry; a3b11dafa9058b Chao Peng 2022-07-20 7272 a3b11dafa9058b Chao Peng 2022-07-20 7273 rcu_read_lock(); a3b11dafa9058b Chao Peng 2022-07-20 7274 s_entry = xas_load(&xas); a3b11dafa9058b Chao Peng 2022-07-20 7275 while (gfn < end) { a3b11dafa9058b Chao Peng 2022-07-20 @7276 if (xas_retry(&xas, entry)) ^^^^^ Uninitialized
a3b11dafa9058b Chao Peng 2022-07-20 7277 continue; a3b11dafa9058b Chao Peng 2022-07-20 7278 a3b11dafa9058b Chao Peng 2022-07-20 7279 KVM_BUG_ON(gfn != xas.xa_index, kvm); a3b11dafa9058b Chao Peng 2022-07-20 7280 a3b11dafa9058b Chao Peng 2022-07-20 7281 entry = xas_next(&xas); a3b11dafa9058b Chao Peng 2022-07-20 7282 if (entry != s_entry) { a3b11dafa9058b Chao Peng 2022-07-20 7283 mixed = true; a3b11dafa9058b Chao Peng 2022-07-20 7284 break; a3b11dafa9058b Chao Peng 2022-07-20 7285 } a3b11dafa9058b Chao Peng 2022-07-20 7286 gfn++; a3b11dafa9058b Chao Peng 2022-07-20 7287 } a3b11dafa9058b Chao Peng 2022-07-20 7288 rcu_read_unlock(); a3b11dafa9058b Chao Peng 2022-07-20 7289 return mixed; a3b11dafa9058b Chao Peng 2022-07-20 7290 }
-- 0-DAY CI Kernel Test Service https://01.org/lkp
| |