It doesn't even show up in any header files and only used iternally.
Originally it was (ab)used to restore the fbcon on lastclose, but that
died with
commit e8e7a2b8ccfdae0d4cb6bd25824bbedcd42da316
Author: Dave Airlie <airlied at redhat.com>
Date: Thu Apr 21 22:18:32 2011 +0100
drm/i915: restore only the mode of this driver on lastclose (v2)
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
drivers/gpu/drm/drm_fb_helper.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 6d689f2..ce816a5 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -284,7 +284,7 @@ static bool drm_fb_helper_force_kernel_mode(void)
return error;
}
-int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
+static int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
void *panic_str)
{
/*
@@ -297,7 +297,6 @@ int drm_fb_helper_panic(struct notifier_block *n, unsigned
long ununsed,
pr_err("panic occurred, switching back to text console\n");
return drm_fb_helper_force_kernel_mode();
}
-EXPORT_SYMBOL(drm_fb_helper_panic);
static struct notifier_block paniced = {
.notifier_call = drm_fb_helper_panic,
--
1.7.10.4
