Re: Linux 2.5.40-ac1

Manfred Spraul (manfred@colorfullife.com)
Thu, 03 Oct 2002 17:53:51 +0200

Alan Cox wrote:
> On Thu, 2002-10-03 at 16:18, Manfred Spraul wrote:
>
>>There should bit nonatomic bit ops for every byte width.
>>
>>http://marc.theaimsgroup.com/?l=linux-kernel&m=99167415926343&w=2
>>
>>I even sent you the patch proposal, but never got a reply.
>>
>>Patch again attached, but untested.
>
>
> What about reverse endianness ?

AFAIK, writeX macros should swap as needed, i.e.

writel(0x100,ioaddr);

should arrive as bit 8 set on the hardware. [please correct me if I'm
wrong] Thus the input into write{b,w,l} should be in host byte order.

u{8,16,32} array[];

__set_bit_{8,16,32}(,array);

write{b,w,l}(array[],ioaddr);

would achieve that.

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