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Re: [PATCH 2/2] enhance sysfs rfkill interface

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On Fri, 12 Mar 2010 23:39:25 +0100, Florian Mickler said:
> On Fri, 12 Mar 2010 13:20:26 -0800
> Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> wrote:

> > You are not updating but reading... Are you concerned about seeing
> > a partial write to u32? It does not happen.
> > 
> Hm.. You shure? On every arch that supports wireless drivers? 

If a u32 load or store from memory isn't atomic, the Linux kernel is screwed
anyhow.  Hint - imagine if every 32-bit reference had to be treated the way
we currently treat 64-bit references on a 32-bit system.

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