Re: [PATCH 3/4] x86: Implement strict user copy checks for x86_64

From: Andrew Morton
Date: Thu Jun 30 2011 - 15:21:16 EST


On Tue, 31 May 2011 11:14:32 -0700
Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:

> Strict user copy checks are only really supported on x86_32 even
> though the config option is selectable on x86_64. Add the
> necessary support to the 64 bit code to trigger copy_from_user()
> warnings at compile time.

So I'm getting 20-30 warnings from an x86_64 allmodconfig build.

I don't think we want a million other people to have to put up with
those warnings too. Can you please take a look at fixing these up?

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