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authorLen Brown <len.brown@intel.com>2011-03-18 18:06:08 -0400
committerLen Brown <len.brown@intel.com>2011-03-18 18:06:08 -0400
commit05534c9ffc9d5d950b14de8ba49a7609dc59b0b8 (patch)
tree65a01a1e0bc0e28c64fb5105cc763949f5412b4b /drivers/acpi/acpica/evgpe.c
parentdd87cc53c42f3260b7eb7f60822de0fa9e58af59 (diff)
parent589c7a39ae2f2b74fd13ae344ca1dcca61da6bca (diff)
Merge branch 'acpica' into release
Diffstat (limited to 'drivers/acpi/acpica/evgpe.c')
-rw-r--r--drivers/acpi/acpica/evgpe.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index f4725212eb4..65c79add3b1 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -373,6 +373,15 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
gpe_register_info = &gpe_block->register_info[i];
+ /*
+ * Optimization: If there are no GPEs enabled within this
+ * register, we can safely ignore the entire register.
+ */
+ if (!(gpe_register_info->enable_for_run |
+ gpe_register_info->enable_for_wake)) {
+ continue;
+ }
+
/* Read the Status Register */
status =