From: Ralf Baechle <ralf@linux-mips.org>
Date: Sat, 17 Mar 2007 16:21:28 +0000 (+0000)
Subject: [MIPS] VI: TRACE_IRQS_OFF clobbers $v0, so save & restore around call.
X-Git-Tag: firefly_0821_release~30584^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8c3644350f4105a9b55fbfc6bbba567b79cdf72a;p=firefly-linux-kernel-4.4.55.git

[MIPS] VI: TRACE_IRQS_OFF clobbers $v0, so save & restore around call.

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

diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index aacd4a005c5f..c921cb7c1956 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -220,7 +220,17 @@ NESTED(except_vec_vi_handler, 0, sp)
 	_ehb
 #endif /* CONFIG_MIPS_MT_SMTC */
 	CLI
+#ifdef CONFIG_TRACE_IRQFLAGS
+	move	s0, v0
+#ifdef CONFIG_MIPS_MT_SMTC
+	move	s1, a0
+#endif
 	TRACE_IRQS_OFF
+#ifdef CONFIG_MIPS_MT_SMTC
+	move	a0, s1
+#endif
+	move	v0, s0
+#endif
 
 	LONG_L	s0, TI_REGS($28)
 	LONG_S	sp, TI_REGS($28)