Re: Question about signal syscalls !

[Ralf Baechle <ralf@linux-mips.org>]

On Thu, Feb 01, 2007 at 03:54:40PM +0100, Franck Bui-Huu wrote:

> Let's take for example sys_sigreturn(). In my understanding this
> syscall is used automatically when the signal handler returns. At this
> time, I don't see the point to save the static registers since they
> have been already saved by setup_sigcontext().
> 
> Actually I don't see why they need to be saved/restored at all...

There is no need.  Seems you found a harmless but longstanding but
introduced by c40738a70f3e02e8554b78af334dc95356a78989.

  Ralf