linux-kernel - Re: [PATCH] alpha: add io{read,write}{16,32}be functions

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Message-ID: <CAEdQ38HE70B-4w3t71rn_S-eX7BMnc6f=dD49guuBim+dQnPzA@mail.gmail.com>
Date:	Tue, 24 Apr 2012 16:01:28 -0400
From:	Matt Turner <mattst88@...il.com>
To:	Jonathan Nieder <jrnieder@...il.com>
Cc:	linux-alpha@...r.kernel.org, linux-kernel@...r.kernel.org,
	Michael Cree <mcree@...on.net.nz>,
	Richard Henderson <rth@...ddle.net>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Ben Hutchings <ben@...adent.org.uk>,
	Raúl Porcel <armin76@...too.org>
Subject: Re: [PATCH] alpha: add io{read,write}{16,32}be functions

On Tue, Apr 24, 2012 at 1:51 AM, Jonathan Nieder <jrnieder@...il.com> wrote:
> Hi Matt et al,
>
> Michael Cree wrote:
>
>> These functions are used in some PCI drivers with big-endian
>> MMIO space.
>>
>> Admittedly it is almost certain that no one this side of the
>> Moon would use such a card in an Alpha but it does get us
>> closer to being able to build allyesconfig or allmodconfig,
> [...]
>> --- a/arch/alpha/include/asm/io.h
>> +++ b/arch/alpha/include/asm/io.h
>> @@ -490,6 +490,11 @@ extern inline void writeq(u64 b, volatile void __iomem *addr)
>>  }
>>  #endif
>>
>> +#define ioread16be(p) be16_to_cpu(ioread16(p))
>> +#define ioread32be(p) be32_to_cpu(ioread32(p))
>> +#define iowrite16be(v,p) iowrite16(cpu_to_be16(v), (p))
>> +#define iowrite32be(v,p) iowrite32(cpu_to_be32(v), (p))
>> +
>>  #define inb_p                inb
>
> This patch has been in use in Debian's development branch since
> January.  Does it look sensible to you?  (If so, I'd like to see it in
> mainline eventually so we can more easily share bugfixes depending on
> it in the future.)
>
> Thanks,
> Jonathan

I recently got my kernel.org tree set up again, so I just applied this.

Thanks, and please point me to any patches I should apply.

Matt
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