From e4e94072d9c3b19662537cbd5e2d37bcaeed3d9b Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Wed, 11 Jan 2006 22:43:48 +0100 Subject: [PATCH] [PATCH] x86_64: Return -1 for unknown PCI bus affinity When we don't know the node a PCI bus is connected to return -1. This matches the generic code. Noticed by Ravikiran G Thirumalai Cc: Ravikiran G Thirumalai Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/mm/srat.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index 9f69d28652..d96c701dbe 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c @@ -23,15 +23,16 @@ static struct acpi_table_slit *acpi_slit; static nodemask_t nodes_parsed __initdata; static nodemask_t nodes_found __initdata; static struct node nodes[MAX_NUMNODES] __initdata; -static __u8 pxm2node[256] = { [0 ... 255] = 0xff }; +static u8 pxm2node[256] = { [0 ... 255] = 0xff }; static int node_to_pxm(int n); int pxm_to_node(int pxm) { if ((unsigned)pxm >= 256) - return 0; - return pxm2node[pxm]; + return -1; + /* Extend 0xff to (int)-1 */ + return (signed char)pxm2node[pxm]; } static __init int setup_node(int pxm) -- 2.39.5