From: Dave Kleikamp <dave.kleikamp@oracle.com>
Date: Fri, 23 Oct 2015 16:31:06 +0000 (-0500)
Subject: sparc64: call set_irq_reqs around generic_smp_call_function_interrupt call
X-Git-Tag: v4.1.12-92~147^2~3^2~25
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d74cef2561399a5a5cd7d251fc8e53e4abd8a12b;p=users%2Fjedix%2Flinux-maple.git

sparc64: call set_irq_reqs around generic_smp_call_function_interrupt call

original patch by Bob Picco

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Cc: Bob Picco <bob.picco@oracle.com>
---

diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 0d5869c27097d..ca564f91c5e28 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -819,10 +819,14 @@ void arch_send_call_function_single_ipi(int cpu)
 
 void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs)
 {
+	struct pt_regs *old_regs;
+
 	clear_softint(1 << irq);
+	old_regs = set_irq_regs(regs);
 	irq_enter();
 	generic_smp_call_function_interrupt();
 	irq_exit();
+	set_irq_regs(old_regs);
 }
 
 void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs)