On Mon, Jun 03, 2024 at 06:07:39PM +0200, David Hildenbrand wrote: > pgdat is never dereferenced when "nid == NUMA_NO_NODE". Right. > NODE_DATA is defined as > > arch/arm64/include/asm/mmzone.h:#define NODE_DATA(nid) (node_data[(nid)]) > arch/loongarch/include/asm/mmzone.h:#define NODE_DATA(nid) (node_data[(nid)]) > arch/mips/include/asm/mach-ip27/mmzone.h:#define NODE_DATA(n) (&__node_data[(n)]->pglist) All look fine, but mips. Is it not dangerous to try to derefence &__node_data[-1]->pglist? -- Oscar Salvador SUSE Labs
