[PATCH 61/76] ACPI, APEI, EINJ, limit the range of einj_param

From: Len Brown
Date: Fri Mar 30 2012 - 06:18:50 EST

From: Chen Gong <gong.chen@xxxxxxxxxxxxxxx>

On the platforms with ACPI4.x support, parameter extension
is not always doable, which means only parameter extension
is enabled, einj_param can take effect.

v2->v1: stopping early in einj_get_parameter_address for einj_param

Signed-off-by: Chen Gong <gong.chen@xxxxxxxxxxxxxxx>
Acked-by: Tony Luck <tony.luck@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
drivers/acpi/apei/einj.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index 4ca087d..3d3816f 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -238,7 +238,7 @@ static void *einj_get_parameter_address(void)
return v5param;
- if (paddrv4) {
+ if (param_extension && paddrv4) {
struct einj_parameter *v4param;

v4param = acpi_os_map_memory(paddrv4, sizeof(*v4param));

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