Re: [PATCH 2/7] arm64: Implement copy_thread_tls

From: Will Deacon
Date: Mon Jan 06 2020 - 12:40:02 EST

On Thu, Jan 02, 2020 at 07:01:33PM +0100, Christian Brauner wrote:
> On Thu, Jan 02, 2020 at 06:24:08PM +0100, Amanieu d'Antras wrote:
> > This is required for clone3 which passes the TLS value through a
> > struct rather than a register.
> >
> > Signed-off-by: Amanieu d'Antras <amanieu@xxxxxxxxx>
> > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> > Cc: <stable@xxxxxxxxxxxxxxx> # 5.3.x
> This looks sane to me but I'd like an ack from someone who knows his arm
> from his arse before taking this. :)

That's *ME*! Code looks fine:

Acked-by: Will Deacon <will@xxxxxxxxxx>

I also ran the native and compat selftests but, unfortunately, they all
pass even without this patch. Do you reckon it would be possible to update
them to check the tls pointer?