Re: [RFC ABI V5 07/10] IB/core: Support getting IOCTL header/SGEs from kernel space

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On Fri, Oct 28, 2016 at 06:16:06PM +0300, Leon Romanovsky wrote:
> And it is indeed happen for new code. This magic is needed to allow legacy
> write interface to be converted to new ioctl interface internally in
> kernel.

You just added these statements which are by defintion new code.
Don't do that - create a clean kernel internal interface instead.

The canonical one would be to only pass kernel pointers in the internal
interface.
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