[PATCH v8 03/16] of/numa: add nid check for memory block
From: Zhen Lei <hidden>
Date: 2016-09-01 06:56:41
Also in:
linux-devicetree, linux-mm, lkml
Subsystem:
open firmware and flattened device tree, the rest · Maintainers:
Rob Herring, Saravana Kannan, Linus Torvalds
If the numa-id which was configured in memory@ devicetree node is greater than MAX_NUMNODES, we should report a warning. We have done this for cpus and distance-map dt nodes, this patch help them to be consistent. Signed-off-by: Zhen Lei <redacted> --- drivers/of/of_numa.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 7b3fbdc..c1bd62c 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c@@ -75,6 +75,11 @@ static int __init of_numa_parse_memory_nodes(void) */ continue; + if (nid >= MAX_NUMNODES) { + pr_warn("NUMA: Node id %u exceeds maximum value\n", nid); + r = -EINVAL; + } + for (i = 0; !r && !of_address_to_resource(np, i, &rsrc); i++) r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1); --
2.5.0