Commit 6169ddf8 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

GHES: Panic right after detection 



The moment we log an error of panic severity, there's no need to noodle
through the ghes_nmi list anymore. So panic instead right then and
there.

Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
parent e10be03f

drivers/acpi/apei/ghes.c

+6 −10
Original line number Diff line number Diff line
@@ -837,9 +837,8 @@ static void __ghes_panic(struct ghes *ghes) 


static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)

{

	struct ghes *ghes, *ghes_global = NULL;

	int sev, sev_global = -1;

	int ret = NMI_DONE;

	struct ghes *ghes;

	int sev, ret = NMI_DONE;



	raw_spin_lock(&ghes_nmi_lock);

	list_for_each_entry_rcu(ghes, &ghes_nmi, list) {
@@ -847,20 +846,17 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs) 
			ghes_clear_estatus(ghes);

			continue;

		}



		sev = ghes_severity(ghes->estatus->error_severity);

		if (sev > sev_global) {

			sev_global = sev;

			ghes_global = ghes;

		}

		if (sev >= GHES_SEV_PANIC)

			__ghes_panic(ghes);



		ret = NMI_HANDLED;

	}



	if (ret == NMI_DONE)

		goto out;



	if (sev_global >= GHES_SEV_PANIC)

		__ghes_panic(ghes_global);



	list_for_each_entry_rcu(ghes, &ghes_nmi, list) {

		if (!(ghes->flags & GHES_TO_CLEAR))

			continue;

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