Re: [PATCH] s2io: replace readq() with mmiowb() in s2io_xmit()

[Arthur Kepner <akepner@xxxxxxx>]

On Tue, 3 May 2005, Anton Blanchard wrote:

> 
> I didnt know mmiowb is supposed to be a replacement for PCI write
> posting. Most architectures define mmiowb as nothing and so will be
> broken with your change.
> 

I thought that an arch was supposed to define mmiowb() if it needs 
it. In this case, the readq() is only being used for the side-effect 
of ordering the previous writes (the neterion folks can correct me 
if I'm wrong). 

--
Arthur