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authorZhen Lei <thunder.leizhen@huawei.com>2016-09-01 09:54:53 +0300
committerWill Deacon <will.deacon@arm.com>2016-09-09 16:59:08 +0300
commit84b14256c18c967afd3cf4ee2df09535587154e0 (patch)
tree901440b13550ffccc512aae2b50d517d6a67a48d /drivers/of/of_numa.c
parent16a82f06c40301045e4c05297ea93b85595dbbc4 (diff)
downloadlinux-84b14256c18c967afd3cf4ee2df09535587154e0.tar.xz
of/numa: fix a memory@ node can only contains one memory block
For a normal memory@ devicetree node, its reg property can contains more memory blocks. Because we don't known how many memory blocks maybe contained, so we try from index=0, increase 1 until error returned(the end). Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/of/of_numa.c')
-rw-r--r--drivers/of/of_numa.c29
1 files changed, 10 insertions, 19 deletions
diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index fb71b4ef1eeb..7b3fbdc0b278 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -63,13 +63,9 @@ static int __init of_numa_parse_memory_nodes(void)
struct device_node *np = NULL;
struct resource rsrc;
u32 nid;
- int r = 0;
-
- for (;;) {
- np = of_find_node_by_type(np, "memory");
- if (!np)
- break;
+ int i, r;
+ for_each_node_by_type(np, "memory") {
r = of_property_read_u32(np, "numa-node-id", &nid);
if (r == -EINVAL)
/*
@@ -78,23 +74,18 @@ static int __init of_numa_parse_memory_nodes(void)
* "numa-node-id" property
*/
continue;
- else if (r)
- /* some other error */
- break;
- r = of_address_to_resource(np, 0, &rsrc);
- if (r) {
- pr_err("NUMA: bad reg property in memory node\n");
- break;
- }
+ for (i = 0; !r && !of_address_to_resource(np, i, &rsrc); i++)
+ r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);
- r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);
- if (r)
- break;
+ if (!i || r) {
+ of_node_put(np);
+ pr_err("NUMA: bad property in memory node\n");
+ return r ? : -EINVAL;
+ }
}
- of_node_put(np);
- return r;
+ return 0;
}
static int __init of_numa_parse_distance_map_v1(struct device_node *map)