Re: [PATCH][2.6] IBM PowerPC Virtual Ethernet Driver

[Dave Jones]

On Wed, Feb 18, 2004 at 11:45:20AM +1100, Benjamin Herrenschmidt wrote:

 > BITFIELDS ARE EVIL !!!
 > 
 > Especially when mapping things like HW registers... I know the p/iSeries
 > code is full of them, I'd strongly recommend getting rid of them.
 > 
 > The compiler is perfectly free, afaik, to re-order them

That can't be right surely ? That would make them utterly useless afaics.
I've not seen this happen in practice either with the 2 x86 cpufreq drivers
I wrote that both use bitfields extensively.

		Dave

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