[PATCH 1/2] arm64: syscallno is secretly an int, make it official

[Dave Martin]

On Wed, Jul 19, 2017 at 03:14:55PM +0200, Lothar Waßmann wrote:
> Hi,
> 
> On Tue, 18 Jul 2017 13:41:43 +0100 Dave Martin wrote:
> > The upper 32 bits of the syscallno field in struct pt_regs are handled
> > inconsistently, being sometimes zero extended and sometimes
> > sign-extended.  The reason for this appears to be that they are not
> > intentionally significant at all.
> > 
> My english parser fails on "not intentionally significant at all".

Hmmm, that was rather convoluted.

How about:

--8<--

In fact, only the lower 32 bits seem to have any real significance for
the behaviour of the code: it's been OK to handle the upper bits
inconsistently because they don't matter.

Cheers
---Dave