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From: Andy Lutomirski <luto@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>,
	Steven Rostedt <rostedt@goodmis.org>
Cc: "security@kernel.org" <security@kernel.org>,
	X86 ML <x86@kernel.org>,
	linux-kernel@vger.kernel.org, Andy Lutomirski <luto@kernel.org>,
	stable@vger.kernel.org
Subject: [PATCH v2] x86/nmi: Remove the b2b parameter from nmi_handle
Date: Mon, 20 Jul 2015 11:52:23 -0700	[thread overview]
Message-ID: <c91fa38507760d9e54a4b8737fa6409bde896b33.1437418322.git.luto@kernel.org> (raw)

It has never had any effect.  Remove it for comprehensibility.

Cc'd to stable because whatever to do with improve the NMI mess will
probably depend on this.

Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@kernel.org>
---
 arch/x86/kernel/nmi.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index d05bd2e2ee91..697f90db0e37 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -110,7 +110,7 @@ static void nmi_max_handler(struct irq_work *w)
 		a->handler, whole_msecs, decimal_msecs);
 }
 
-static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
+static int nmi_handle(unsigned int type, struct pt_regs *regs)
 {
 	struct nmi_desc *desc = nmi_to_desc(type);
 	struct nmiaction *a;
@@ -213,7 +213,7 @@ static void
 pci_serr_error(unsigned char reason, struct pt_regs *regs)
 {
 	/* check to see if anyone registered against these types of errors */
-	if (nmi_handle(NMI_SERR, regs, false))
+	if (nmi_handle(NMI_SERR, regs))
 		return;
 
 	pr_emerg("NMI: PCI system error (SERR) for reason %02x on CPU %d.\n",
@@ -247,7 +247,7 @@ io_check_error(unsigned char reason, struct pt_regs *regs)
 	unsigned long i;
 
 	/* check to see if anyone registered against these types of errors */
-	if (nmi_handle(NMI_IO_CHECK, regs, false))
+	if (nmi_handle(NMI_IO_CHECK, regs))
 		return;
 
 	pr_emerg(
@@ -284,7 +284,7 @@ unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
 	 * as only the first one is ever run (unless it can actually determine
 	 * if it caused the NMI)
 	 */
-	handled = nmi_handle(NMI_UNKNOWN, regs, false);
+	handled = nmi_handle(NMI_UNKNOWN, regs);
 	if (handled) {
 		__this_cpu_add(nmi_stats.unknown, handled);
 		return;
@@ -332,7 +332,7 @@ static void default_do_nmi(struct pt_regs *regs)
 
 	__this_cpu_write(last_nmi_rip, regs->ip);
 
-	handled = nmi_handle(NMI_LOCAL, regs, b2b);
+	handled = nmi_handle(NMI_LOCAL, regs);
 	__this_cpu_add(nmi_stats.normal, handled);
 	if (handled) {
 		/*
-- 
2.4.3


             reply	other threads:[~2015-07-20 18:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-20 18:52 Andy Lutomirski [this message]
2015-07-21  0:08 ` Andy Lutomirski
2015-07-21  9:37 ` [tip:x86/asm] x86/nmi: Remove the 'b2b' parameter from nmi_handle () tip-bot for Andy Lutomirski

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