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authorToshi Kani <toshi.kani@hp.com>2013-07-03 15:02:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:31 -0700
commit4996eed867a7215958267252fafddc41d5f26140 (patch)
tree71977e18000fc0aaddf44b7454b3d76f3ac09b4a /mm/memory_hotplug.c
parentf15bdfa802bfa5eb6b4b5a241b97ec9fa1204a35 (diff)
downloadlwn-4996eed867a7215958267252fafddc41d5f26140.tar.gz
lwn-4996eed867a7215958267252fafddc41d5f26140.zip
mm/memory_hotplug.c: change normal message to use pr_debug
During early boot-up, iomem_resource is set up from the boot descriptor table, such as EFI Memory Table and e820. Later, acpi_memory_device_add() calls add_memory() for each ACPI memory device object as it enumerates ACPI namespace. This add_memory() call is expected to fail in register_memory_resource() at boot since iomem_resource has been set up from EFI/e820. As a result, add_memory() returns -EEXIST, which acpi_memory_device_add() handles as the normal case. This scheme works fine, but the following error message is logged for every ACPI memory device object during boot-up. "System RAM resource %pR cannot be added\n" This patch changes register_memory_resource() to use pr_debug() for the message as it shows up under the normal case. Signed-off-by: Toshi Kani <toshi.kani@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
-rw-r--r--mm/memory_hotplug.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index a66d0023d219..e3097f299f67 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -75,7 +75,7 @@ static struct resource *register_memory_resource(u64 start, u64 size)
res->end = start + size - 1;
res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
if (request_resource(&iomem_resource, res) < 0) {
- printk("System RAM resource %pR cannot be added\n", res);
+ pr_debug("System RAM resource %pR cannot be added\n", res);
kfree(res);
res = NULL;
}