From mboxrd@z Thu Jan  1 00:00:00 1970
From: sshtylyov@mvista.com (Sergei Shtylyov)
Date: Tue, 15 Feb 2011 16:38:32 +0300
Subject: [PATCH 1/2] OMAP2+: IOMMU: change OMAP2+ error message to
	dev_dbg()
In-Reply-To: <1297776033-8579-2-git-send-email-dacohen@gmail.com>
References: <1297776033-8579-1-git-send-email-dacohen@gmail.com>
	<1297776033-8579-2-git-send-email-dacohen@gmail.com>
Message-ID: <4D5A81D8.2080800@ru.mvista.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hello.

On 15-02-2011 16:20, David Cohen wrote:

> IOMMU upper layer is already printing error message. OMAP2+ specific
> layer may print error message only for debug purpose.

> Signed-off-by: David Cohen<dacohen@gmail.com>
> ---
>   arch/arm/mach-omap2/iommu2.c |    6 +++---
>   1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c
> index 14ee686..4244a07 100644
> --- a/arch/arm/mach-omap2/iommu2.c
> +++ b/arch/arm/mach-omap2/iommu2.c
> @@ -163,13 +163,13 @@ static u32 omap2_iommu_fault_isr(struct iommu *obj, u32 *ra)
>   	da = iommu_read_reg(obj, MMU_FAULT_AD);
>   	*ra = da;
>
> -	dev_err(obj->dev, "%s:\tda:%08x ", __func__, da);
> +	dev_dbg(obj->dev, "%s:\tda:%08x ", __func__, da);

    Note that dev_dbg() will only print something if either DEBUG or 
CONFIG_DYNAMIC_DEBUG are defined...

>
>   	for (i = 0; i<  ARRAY_SIZE(err_msg); i++) {
>   		if (stat & (1<<  i))
> -			printk("%s ", err_msg[i]);
> +			printk(KERN_DEBUG "%s ", err_msg[i]);

    ... unlike printk(KERN_DEBUG...). You probably want to use pr_debug() instead.

>   	}
> -	printk("\n");
> +	printk(KERN_DEBUG "\n");

    Here too... Although wait, it should be KERN_CONT instead! Debug levels 
are only attributed to the whole lines.

WBR, Sergei