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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Liu Yibin <jiulong@linux.alibaba.com>,
        Guo Ren <guoren@linux.alibaba.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 057/142] csky: Fixup remove duplicate irq_disable
Date:   Mon,  1 Jun 2020 19:53:35 +0200
Message-Id: <20200601174043.854249061@linuxfoundation.org>
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From: Liu Yibin <jiulong@linux.alibaba.com>

[ Upstream commit 6633a5aa8eb6bda70eb3a9837efd28a67ccc6e0a ]

Interrupt has been disabled in __schedule() with local_irq_disable()
and enabled in finish_task_switch->finish_lock_switch() with
local_irq_enabled(), So needn't to disable irq here.

Signed-off-by: Liu Yibin <jiulong@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/csky/kernel/entry.S | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S
index a7a5b67df898..65c55f22532a 100644
--- a/arch/csky/kernel/entry.S
+++ b/arch/csky/kernel/entry.S
@@ -318,8 +318,6 @@ ENTRY(__switch_to)
 
 	mfcr	a2, psr			/* Save PSR value */
 	stw	a2, (a3, THREAD_SR)	/* Save PSR in task struct */
-	bclri	a2, 6			/* Disable interrupts */
-	mtcr	a2, psr
 
 	SAVE_SWITCH_STACK
 
-- 
2.25.1