linux-kernel - [PATCH 09/23] arch: s390: drop misleading warning on spurious IRQ

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Message-Id: <20201218143122.19459-10-info@metux.net>
Date:   Fri, 18 Dec 2020 15:31:08 +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,
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        linux-arch@...r.kernel.org
Subject: [PATCH 09/23] arch: s390: 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/s390/include/asm/hardirq.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index dfbc3c6c0674..56d95fcb310a 100644
--- a/arch/s390/include/asm/hardirq.h
+++ b/arch/s390/include/asm/hardirq.h
@@ -21,9 +21,6 @@
 #define __ARCH_HAS_DO_SOFTIRQ
 #define __ARCH_IRQ_EXIT_IRQS_DISABLED
 
-static inline void ack_bad_irq(unsigned int irq)
-{
-	printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
-}
+#define ack_bad_irq(irq)
 
 #endif /* __ASM_HARDIRQ_H */
-- 
2.11.0