linux-kernel - Re: [PATCH v4 03/19] ARM: LPAE: use long long format when printing physical addresses and ptes

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Message-ID: <20110212095943.GB15616@n2100.arm.linux.org.uk>
Date:	Sat, 12 Feb 2011 09:59:43 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Will Deacon <will.deacon@....com>
Subject: Re: [PATCH v4 03/19] ARM: LPAE: use long long format when printing
	physical addresses and ptes

On Mon, Jan 24, 2011 at 05:55:45PM +0000, Catalin Marinas wrote:
> diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
> index 5ea4fb7..3d23f0f 100644
> --- a/arch/arm/kernel/setup.c
> +++ b/arch/arm/kernel/setup.c
> @@ -449,7 +449,7 @@ static int __init arm_add_memory(unsigned long start, unsigned long size)
>  
>  	if (meminfo.nr_banks >= NR_BANKS) {
>  		printk(KERN_CRIT "NR_BANKS too low, "
> -			"ignoring memory at %#lx\n", start);
> +			"ignoring memory at %#08llx\n", (long long)start);

This is not equivalent.  %#lx produces '0x0'.  %#08llx produces '0x000000'
not '0x00000000' - the '0x' is included in the field width.  So you want
'%#010llx' or '0x%08llx' - there's no real advantage to either.  Or just
convert '%#lx' to '%#llx'.
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