linux-kernel - [PATCH 03/14] csky: entry: Remove unneeded need

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Message-Id: <20190311224752.8337-4-valentin.schneider@arm.com>
Date:   Mon, 11 Mar 2019 22:47:41 +0000
From:   Valentin Schneider <valentin.schneider@....com>
To:     linux-kernel@...r.kernel.org
Cc:     Guo Ren <guoren@...nel.org>
Subject: [PATCH 03/14] csky: entry: Remove unneeded need_resched() loop

Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.

Signed-off-by: Valentin Schneider <valentin.schneider@....com>
Cc: Guo Ren <guoren@...nel.org>
---
 arch/csky/kernel/entry.S | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S
index 5137ed9062bd..2d9e4776ba7a 100644
--- a/arch/csky/kernel/entry.S
+++ b/arch/csky/kernel/entry.S
@@ -307,11 +307,7 @@ ENTRY(csky_irq)
 	ldw	r8, (r9, TINFO_FLAGS)
 	btsti	r8, TIF_NEED_RESCHED
 	bf	2f
-1:
 	jbsr	preempt_schedule_irq	/* irq en/disable is done inside */
-	ldw	r7, (r9, TINFO_FLAGS)	/* get new tasks TI_FLAGS */
-	btsti	r7, TIF_NEED_RESCHED
-	bt	1b			/* go again */
 #endif
 2:
 	jmpi	ret_from_exception
-- 
2.20.1