This is to remove noisy useless message at boot time from 2.6.18-rc3.
(-mm doesn't shows this message. I don't know why.)
The message is a ton of
"ACPI Exception (acpi_memory-0492): AE_ERROR, handle is no memory device"
It is showed by acpi_memory_register_notify_handler() which
is called by acpi_walk_namespace().
acpi_walk_namespace() parses all of ACPI's namespace and
executes acpi_memory_register_notify_handler(). So, it is called for
all of the device which is defined in namespace. Even if
the parsing device is not memory, it is normal route.
So, this message is useless.
I tested this patch for 2.6.18-rc3 on my box with hot-add emulation.
Please apply.
Signed-off-by: Yasunori Goto <y-goto@xxxxxxxxxxxxxx>
------
drivers/acpi/acpi_memhotplug.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
Index: hotmemtest1/drivers/acpi/acpi_memhotplug.c
===================================================================
--- hotmemtest1.orig/drivers/acpi/acpi_memhotplug.c 2006-08-03 20:00:58.000000000 +0900
+++ hotmemtest1/drivers/acpi/acpi_memhotplug.c 2006-08-04 21:06:52.000000000 +0900
@@ -487,10 +487,8 @@ acpi_memory_register_notify_handler(acpi
status = is_memory_device(handle);
- if (ACPI_FAILURE(status)){
- ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
+ if (ACPI_FAILURE(status))
return AE_OK; /* continue */
- }
status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
acpi_memory_device_notify, NULL);
@@ -506,10 +504,8 @@ acpi_memory_deregister_notify_handler(ac
status = is_memory_device(handle);
- if (ACPI_FAILURE(status)){
- ACPI_EXCEPTION((AE_INFO, status, "handle is no memory device"));
+ if (ACPI_FAILURE(status))
return AE_OK; /* continue */
- }
status = acpi_remove_notify_handler(handle,
ACPI_SYSTEM_NOTIFY,
--
Yasunori Goto
-
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