On 17/05/19 12:07, Thomas Huth wrote: > > lib/ucall.c: In function ‘get_ucall’: > lib/ucall.c:145:3: warning: dereferencing type-punned pointer will break > strict-aliasing rules [-Wstrict-aliasing] > gva = *(vm_vaddr_t *)run->mmio.data; > > x86_64/vmx_set_nested_state_test.c: In function > ‘set_revision_id_for_vmcs12’: > x86_64/vmx_set_nested_state_test.c:78:2: warning: dereferencing > type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] > *(u32 *)(state->data) = vmcs12_revision; > > ... how do we want to handle such spots in the kvm selftest code? > Compile with -fno-strict-aliasing? Or fix it with type-punning through > unions? I would use memcpy. I'll send a patch shortly. Paolo
