linux-kernel - [PATCH v3 5/5] powerpc/interrupt: Remove prep_irq_for_user

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Message-Id: <1e21c1486087fb1a3c30feafb9371000c860ae13.1623745950.git.christophe.leroy@csgroup.eu>
Date:   Tue, 15 Jun 2021 08:33:25 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>, npiggin@...il.com
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v3 5/5] powerpc/interrupt: Remove prep_irq_for_user_exit()

prep_irq_for_user_exit() has only one caller, squash it
inside that caller.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/kernel/interrupt.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index 05831d99bf26..de335da7ab52 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c
@@ -75,18 +75,6 @@ static notrace __always_inline bool prep_irq_for_enabled_exit(bool restartable)
 	return true;
 }
 
-static notrace __always_inline bool prep_irq_for_user_exit(void)
-{
-	bool ret;
-
-	user_enter_irqoff();
-	ret = prep_irq_for_enabled_exit(true);
-	if (!ret)
-		user_exit_irqoff();
-
-	return ret;
-}
-
 /* Has to run notrace because it is entered not completely "reconciled" */
 notrace long system_call_exception(long r3, long r4, long r5,
 				   long r6, long r7, long r8,
@@ -276,7 +264,9 @@ interrupt_exit_user_prepare_main(struct pt_regs *regs, unsigned long ret)
 		}
 	}
 
-	if (!prep_irq_for_user_exit()) {
+	user_enter_irqoff();
+	if (!prep_irq_for_enabled_exit(true)) {
+		user_exit_irqoff();
 		local_irq_enable();
 		local_irq_disable();
 		goto again;
-- 
2.25.0