atyfb: mark DMI system id table as __initconst

We can mark the DMI system id table as __initconst by using a helper
variable that'll tell us if we need to unregister the reboot notifier in
atyfb_exit() instead of matching the DMI system id again.

This frees up ~680 bytes of runtime memory, the DMI table occupies.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index 37ec09b3fffd..8789e487b96e 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -3948,7 +3948,7 @@ static struct notifier_block atyfb_reboot_notifier = {
         .notifier_call = atyfb_reboot_notify,
 };
 
-static const struct dmi_system_id atyfb_reboot_ids[] = {
+static const struct dmi_system_id atyfb_reboot_ids[] __initconst = {
         {
                 .ident = "HP OmniBook 500",
                 .matches = {
@@ -3960,6 +3960,7 @@ static const struct dmi_system_id atyfb_reboot_ids[] = {
 
         { }
 };
+static bool registered_notifier = false;
 
 static int __init atyfb_init(void)
 {
@@ -3982,15 +3983,17 @@ static int __init atyfb_init(void)
         if (err1 && err2)
                 return -ENODEV;
 
-        if (dmi_check_system(atyfb_reboot_ids))
+        if (dmi_check_system(atyfb_reboot_ids)) {
                 register_reboot_notifier(&atyfb_reboot_notifier);
+                registered_notifier = true;
+        }
 
         return 0;
 }
 
 static void __exit atyfb_exit(void)
 {
-        if (dmi_check_system(atyfb_reboot_ids))
+        if (registered_notifier)
                 unregister_reboot_notifier(&atyfb_reboot_notifier);
 
 #ifdef CONFIG_PCI