From: Zhao Yakui <yakui.zhao@xxxxxxxxx> If the memory block size is zero, ignore it and don't do the memory hotplug flowchart. Otherwise it will complain the following warning message: >System RAM resource 0 - ffffffffffffffff cannot be added Signed-off-by: Zhao Yakui <yakui.zhao@xxxxxxxxx> --- drivers/acpi/acpi_memhotplug.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) Index: linux-2.6/drivers/acpi/acpi_memhotplug.c =================================================================== --- linux-2.6.orig/drivers/acpi/acpi_memhotplug.c 2009-07-07 10:33:43.000000000 +0800 +++ linux-2.6/drivers/acpi/acpi_memhotplug.c 2009-07-07 10:52:26.000000000 +0800 @@ -244,7 +244,12 @@ num_enabled++; continue; } - + /* + * If the memory block size is zero, please ignore it. + * Don't try to do the following memory hotplug flowchart. + */ + if (!info->length) + continue; if (node < 0) node = memory_add_physaddr_to_nid(info->start_addr); @@ -259,8 +264,15 @@ mem_device->state = MEMORY_INVALID_STATE; return -EINVAL; } - - return result; + /* + * Sometimes the memory device will contain several memory blocks. + * When one memory block is hot-added to the system memory, it will + * be regarded as a success. + * Otherwise if the last memory block can't be hot-added to the system + * memory, it will be failure and the memory device can't be bound with + * driver. + */ + return 0; } static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device) -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
