From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 30 Jan 2006 16:48:26 +0000 (+0000)
Subject: [MIPS] local_irq_restore wasn't safe to be used in other macros mode.
X-Git-Tag: firefly_0821_release~38203^2~16
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2e66fe24d6faa287088ff18051dd423a32b60502;p=firefly-linux-kernel-4.4.55.git

[MIPS] local_irq_restore wasn't safe to be used in other macros mode.

It always left the assembler in reorder mode possibly causing disaster.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/include/asm-mips/interrupt.h b/include/asm-mips/interrupt.h
index abdf54ee64cf..0da5818a2d62 100644
--- a/include/asm-mips/interrupt.h
+++ b/include/asm-mips/interrupt.h
@@ -114,6 +114,7 @@ __asm__ __volatile__(							\
 
 __asm__ (
 	"	.macro	local_irq_restore flags				\n"
+	"	.set	push						\n"
 	"	.set	noreorder					\n"
 	"	.set	noat						\n"
 #if defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
@@ -141,8 +142,7 @@ __asm__ (
 	"	mtc0	\\flags, $12					\n"
 #endif
 	"	irq_disable_hazard					\n"
-	"	.set	at						\n"
-	"	.set	reorder						\n"
+	"	.set	pop						\n"
 	"	.endm							\n");
 
 #define local_irq_restore(flags)					\