linux-kernel - [PATCH v2 13/17] irq: csky: perform irqentry in entry code

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Message-Id: <20211026092504.27071-14-mark.rutland@arm.com>
Date:   Tue, 26 Oct 2021 10:25:00 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     linux-kernel@...r.kernel.org
Cc:     aou@...s.berkeley.edu, catalin.marinas@....com,
        deanbo422@...il.com, green.hu@...il.com, guoren@...nel.org,
        jonas@...thpole.se, kernelfans@...il.com,
        linux-arm-kernel@...ts.infradead.org, linux@...linux.org.uk,
        mark.rutland@....com, maz@...nel.org, nickhu@...estech.com,
        palmer@...belt.com, paul.walmsley@...ive.com, shorne@...il.com,
        stefan.kristiansson@...nalahti.fi, tglx@...utronix.de,
        tsbogend@...ha.franken.de, vgupta@...nel.org,
        vladimir.murzin@....com, will@...nel.org
Subject: [PATCH v2 13/17] irq: csky: perform irqentry in entry code

In preparation for removing HANDLE_DOMAIN_IRQ_IRQENTRY, have arch/csky
perform all the irqentry accounting in its entry code. As arch/csky uses
GENERIC_IRQ_MULTI_HANDLER, we can use generic_handle_arch_irq() to do
so.

There should be no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@....com>
Reviewed-by: Guo Ren <guoren@...nel.org>
Reviewed-by: Marc Zyngier <maz@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
---
 arch/csky/Kconfig        | 1 -
 arch/csky/kernel/entry.S | 2 +-
 arch/csky/kernel/irq.c   | 5 -----
 3 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index 45f03f674a61..9d4d898df76b 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -18,7 +18,6 @@ config CSKY
 	select DMA_DIRECT_REMAP
 	select IRQ_DOMAIN
 	select HANDLE_DOMAIN_IRQ
-	select HANDLE_DOMAIN_IRQ_IRQENTRY
 	select DW_APB_TIMER_OF
 	select GENERIC_IOREMAP
 	select GENERIC_LIB_ASHLDI3
diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S
index 00e3c8ebf9b8..a4ababf25e24 100644
--- a/arch/csky/kernel/entry.S
+++ b/arch/csky/kernel/entry.S
@@ -249,7 +249,7 @@ ENTRY(csky_irq)
 
 
 	mov	a0, sp
-	jbsr	csky_do_IRQ
+	jbsr	generic_handle_arch_irq
 
 	jmpi	ret_from_exception
 
diff --git a/arch/csky/kernel/irq.c b/arch/csky/kernel/irq.c
index 03a1930f1cbb..fcdaf3156286 100644
--- a/arch/csky/kernel/irq.c
+++ b/arch/csky/kernel/irq.c
@@ -15,8 +15,3 @@ void __init init_IRQ(void)
 	setup_smp_ipi();
 #endif
 }
-
-asmlinkage void __irq_entry csky_do_IRQ(struct pt_regs *regs)
-{
-	handle_arch_irq(regs);
-}
-- 
2.11.0