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From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 5/8] ARM: hw_breakpoint: make boot quieter without CPUID feature registers
Date: Fri, 26 Oct 2012 11:30:12 +0100	[thread overview]
Message-ID: <1351247415-25090-5-git-send-email-will.deacon@arm.com> (raw)
In-Reply-To: <1351247415-25090-1-git-send-email-will.deacon@arm.com>

Booting on a v6 core without the CPUID feature registers (e.g. 1136)
leads to a noisy dmesg complaining about their absence.

This patch changes the pr_warning into a pr_warn_once to keep the log
quieter.

Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/kernel/hw_breakpoint.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index 8cd52fa..983558e 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -136,8 +136,8 @@ static u8 get_debug_arch(void)
 
 	/* Do we implement the extended CPUID interface? */
 	if (((read_cpuid_id() >> 16) & 0xf) != 0xf) {
-		pr_warning("CPUID feature registers not supported. "
-			   "Assuming v6 debug is present.\n");
+		pr_warn_once("CPUID feature registers not supported. "
+			     "Assuming v6 debug is present.\n");
 		return ARM_DEBUG_ARCH_V6;
 	}
 
-- 
1.7.4.1

  parent reply	other threads:[~2012-10-26 10:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-26 10:30 [PATCH v2 1/8] ARM: hw_breakpoint: only clear OS lock when implemented on v7 Will Deacon
2012-10-26 10:30 ` [PATCH v2 2/8] ARM: hw_breakpoint: fix monitor mode detection with v7.1 Will Deacon
2012-10-26 10:30 ` [PATCH v2 3/8] ARM: hw_breakpoint: fix ordering of debug register reset sequence Will Deacon
2012-10-26 10:30 ` [PATCH v2 4/8] ARM: hw_breakpoint: don't try to clear v6 debug registers during boot Will Deacon
2012-10-26 10:30 ` Will Deacon [this message]
2012-10-26 10:30 ` [PATCH v2 6/8] ARM: hw_breakpoint: check if monitor mode is enabled during validation Will Deacon
2012-10-26 10:30 ` [PATCH v2 7/8] ARM: hw_breakpoint: use CRn as argument for debug reg accessor macros Will Deacon
2012-10-26 10:30 ` [PATCH v2 8/8] ARM: hw_breakpoint: kill WARN_ONCE usage Will Deacon

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