linux-kernel - [PATCH] x86: mm: use WARN_ONCE instead of printk and WARN_ON

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Message-Id: <1638881702-3106-1-git-send-email-wangqing@vivo.com>
Date:   Tue,  7 Dec 2021 04:55:00 -0800
From:   Qing Wang <wangqing@...o.com>
To:     Dave Hansen <dave.hansen@...ux.intel.com>,
        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
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] x86: mm: use WARN_ONCE instead of printk and WARN_ON_ONCE

From: Wang Qing <wangqing@...o.com>

Simply use WARN_ONCE instead of printk(KERN_WARNING, ...) and WARN_ON_ONCE.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 arch/x86/mm/ioremap.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 026031b..af9a321
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -195,9 +195,8 @@ __ioremap_caller(resource_size_t phys_addr, unsigned long size,
 		return NULL;
 
 	if (!phys_addr_valid(phys_addr)) {
-		printk(KERN_WARNING "ioremap: invalid physical address %llx\n",
-		       (unsigned long long)phys_addr);
-		WARN_ON_ONCE(1);
+		WARN_ONCE(1, "ioremap: invalid physical address %llx\n",
+			 (unsigned long long)phys_addr);
 		return NULL;
 	}
 
-- 
2.7.4