linux-kernel - [PATCH 11/23] arch: sparc: drop misleading warning on spurious IRQ

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Date:   Fri, 18 Dec 2020 15:57:34 +0100
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...hat.com, namhyung@...nel.org, catalin.marinas@....com,
        will@...nel.org, msalter@...hat.com, jacquiot.aurelien@...il.com,
        gerg@...ux-m68k.org, geert@...ux-m68k.org,
        tsbogend@...ha.franken.de, James.Bottomley@...senPartnership.com,
        deller@....de, benh@...nel.crashing.org, paulus@...ba.org,
        ysato@...rs.sourceforge.jp, dalias@...c.org, davem@...emloft.net,
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        linux-gpio@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arch@...r.kernel.org
Subject: [PATCH 11/23] arch: sparc: drop misleading warning on spurious IRQ

The warning in ack_bad_irq() is misleading in several ways:
* the term "vector" isn't quite correct
* the printing format isn't consistent across the archs: some print decimal,
  some hex, some hex w/o 0x prefix.
* the printed linux irq isn't meaningful in all cases - we actually would
  want it to print the hw irq.

Since all call sites already print out more detailed and correct information,
we just don't need to duplicate this in each single arch. So just drop it.

Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
---
 arch/sparc/include/asm/hardirq_64.h | 2 +-
 arch/sparc/kernel/irq_64.c          | 5 -----
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/sparc/include/asm/hardirq_64.h b/arch/sparc/include/asm/hardirq_64.h
index 75b92bfe04b5..874151f520de 100644
--- a/arch/sparc/include/asm/hardirq_64.h
+++ b/arch/sparc/include/asm/hardirq_64.h
@@ -14,6 +14,6 @@
 #define local_softirq_pending_ref \
 	__cpu_data.__softirq_pending
 
-void ack_bad_irq(unsigned int irq);
+#define ack_bad_irq(irq)
 
 #endif /* !(__SPARC64_HARDIRQ_H) */
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 3ec9f1402aad..ea2a52f7fe53 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -284,11 +284,6 @@ static unsigned int sysino_exists(u32 devhandle, unsigned int devino)
 	return irq;
 }
 
-void ack_bad_irq(unsigned int irq)
-{
-	pr_crit("BAD IRQ ack %d\n", irq);
-}
-
 void irq_install_pre_handler(int irq,
 			     void (*func)(unsigned int, void *, void *),
 			     void *arg1, void *arg2)
-- 
2.11.0