linux-kernel - [PATCH 26/36] ARM: s3c: bast: avoid irq

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Date:   Thu, 10 Oct 2019 22:30:10 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>
Cc:     linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linus.walleij@...aro.org,
        Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: [PATCH 26/36] ARM: s3c: bast: avoid irq_desc array usage

Once we move to sparse irqs, the irq_desc[] array is no
longer accessible, so replace the two uses in bast-irq.c.
The first one can use irq_to_desc(), the second one seems
completely unneeded as we already have a pointer to the
correct descriptor.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/mach-s3c24xx/bast-irq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/bast-irq.c b/arch/arm/mach-s3c24xx/bast-irq.c
index 4cec084ae443..b3083ee3ab33 100644
--- a/arch/arm/mach-s3c24xx/bast-irq.c
+++ b/arch/arm/mach-s3c24xx/bast-irq.c
@@ -63,7 +63,7 @@ bast_pc104_mask(struct irq_data *data)
 static void
 bast_pc104_maskack(struct irq_data *data)
 {
-	struct irq_desc *desc = irq_desc + BAST_IRQ_ISA;
+	struct irq_desc *desc = irq_to_desc(BAST_IRQ_ISA);
 
 	bast_pc104_mask(data);
 	desc->irq_data.chip->irq_ack(&desc->irq_data);
@@ -95,8 +95,6 @@ static void bast_irq_pc104_demux(struct irq_desc *desc)
 
 	if (unlikely(stat == 0)) {
 		/* ack if we get an irq with nothing (ie, startup) */
-
-		desc = irq_desc + BAST_IRQ_ISA;
 		desc->irq_data.chip->irq_ack(&desc->irq_data);
 	} else {
 		/* handle the IRQ */
-- 
2.20.0