linux-kernel - [PATCH linux-next] x86:iormap: replace a printk + WARN_ON_ONCE() to a WARN_ONCE() Replace a printk+WARN_ON() by a WARN(); this increases the chance of the string making it into the bugreport.

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Message-Id: <20210820060408.14207-1-jing.yangyang@zte.com.cn>
Date:   Thu, 19 Aug 2021 23:04:08 -0700
From:   CGEL <cgel.zte@...il.com>
To:     Dave Hansen <dave.hansen@...ux.intel.com>
Cc:     Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H . Peter Anvin" <hpa@...or.com>,
        linux-kernel@...r.kernel.org,
        jing yangyang <jing.yangyang@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] x86:iormap: replace a printk + WARN_ON_ONCE() to a WARN_ONCE() Replace a printk+WARN_ON() by a WARN(); this increases the chance of the string making it into the bugreport.

From: jing yangyang <jing.yangyang@....com.cn>

This issue was detected with the help of Coccinelle.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: jing yangyang <jing.yangyang@....com.cn>
---
 arch/x86/mm/ioremap.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 60ade7d..f2ded4a 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -195,9 +195,8 @@ static void __ioremap_check_mem(resource_size_t addr, unsigned long size,
 		return NULL;
 
 	if (!phys_addr_valid(phys_addr)) {
-		printk(KERN_WARNING "ioremap: invalid physical address %llx\n",
+		WARN_ONCE(1, "ioremap: invalid physical address %llx\n",
 		       (unsigned long long)phys_addr);
-		WARN_ON_ONCE(1);
 		return NULL;
 	}
 
-- 
1.8.3.1