linux-kernel - Re: [PATCH 1/2] add helper for highmem checks

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Message-ID: <20130209104751.GC17728@pd.tnic>
Date:	Sat, 9 Feb 2013 11:47:52 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Dave Hansen <dave@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org, hpa@...or.com,
	mingo@...nel.org, tglx@...utronix.de
Subject: Re: [PATCH 1/2] add helper for highmem checks

On Sat, Feb 09, 2013 at 10:41:21AM +0100, Borislav Petkov wrote:
> > +static inline bool phys_addr_is_highmem(phys_addr_t addr)
> > +{
> > +	return addr > last_lowmem_paddr();
> 
> I think you mean last_lowmem_phys_addr() here:
> 
> include/linux/mm.h: In function ‘phys_addr_is_highmem’:
> include/linux/mm.h:1764:2: error: implicit declaration of function ‘last_lowmem_paddr’ [-Werror=implicit-function-declaration]
> cc1: some warnings being treated as errors
> make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
> 
> Changed.

With this change, they definitely fix something because I even get X on
the box started. Previously, it would spit out the warning and wouldn't
start X with the login window. And my suspicion is that wdm (WINGs
display manager) I'm using, does /dev/mem accesses when it starts and it
obviously failed. Now not so much :-)

Tested-by: Borislav Petkov <bp@...e.de>

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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