[PATCH] ARM: ptrace: fix ptrace_read_user for !CONFIG_MMU platforms

[Russell King - ARM Linux]

On Tue, Feb 21, 2012 at 10:00:41AM +0000, Will Deacon wrote:
> On Tue, Feb 21, 2012 at 08:36:12AM +0000, Russell King - ARM Linux wrote:
> > Maybe no one uses a debugger for uclinux programs?
> 
> I confess to finding this by inspection rather than a debugging failure.

There is another explanation - that is no one in the uclinux world uses
mainline kernels, and this bug has been fixed ages ago in some uclinux
kernel tree.

That directly raises the question of the value of having the uclinux
baggage in the mainline kernel if no one is using mainline kernels for
uclinux work.  If the uclinux folk aren't willing to pass up bug fixes,
then having it in mainline is, frankly, a waste of space.