From: Takashi Iwai Date: Tue, 6 May 2014 15:52:26 +0000 (+0200) Subject: pvpanic: Set high notifier priority X-Git-Tag: firefly_0821_release~176^2~3790^2~13 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7939831eacd81fccbd7a956b30c7bb3abb9079db;p=firefly-linux-kernel-4.4.55.git pvpanic: Set high notifier priority We've observed the missing pvpanic call at panic, and it turned out that this was blocked by the broken notifier of drm_fb_helper, where scheduling may be called during switching to the fb console. It's fairly difficult to fix the drm_fb problem and a quick fix isn't foreseen, a simpler solution for the missing pvpanic call would be just to call this earlier. In order to assure that, this patch sets a higher priority to pvpanic notifier_block. Once when the issue of drm_fb is resolved, we can remove this priority again. Signed-off-by: Takashi Iwai Signed-off-by: Matthew Garrett --- diff --git a/drivers/platform/x86/pvpanic.c b/drivers/platform/x86/pvpanic.c index c9f6e511daa6..073a90a63dbc 100644 --- a/drivers/platform/x86/pvpanic.c +++ b/drivers/platform/x86/pvpanic.c @@ -70,6 +70,7 @@ pvpanic_panic_notify(struct notifier_block *nb, unsigned long code, static struct notifier_block pvpanic_panic_nb = { .notifier_call = pvpanic_panic_notify, + .priority = 1, /* let this called before broken drm_fb_helper */ };