[PATCH resend] ACPI / PNP: constify device IDs

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Instead of re-creating the array on the stack each time
is_cmos_rtc_device() gets called, make the array 'static const'.

Signed-off-by: Mathias Krause <minipli@xxxxxxxxxxxxxx>
---
This is a resend of patch 4/12 of [1], in case it got forgotten
in the meantime.

[1] http://thread.gmane.org/gmane.linux.acpi.devel/76528

 drivers/acpi/acpi_pnp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index ff6d8adc9cda..9d20ba66d33b 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -368,7 +368,7 @@ static struct acpi_scan_handler acpi_pnp_handler = {
  */
 static int is_cmos_rtc_device(struct acpi_device *adev)
 {
-	struct acpi_device_id ids[] = {
+	static const struct acpi_device_id ids[] = {
 		{ "PNP0B00" },
 		{ "PNP0B01" },
 		{ "PNP0B02" },
-- 
1.7.10.4

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