Re: [PATCH 1/2] MIPS: memset.S: EVA & fault support for small_memset

[Matt Redfearn]

Hi James,

On 16/04/18 21:22, James Hogan wrote:
> On Thu, Mar 29, 2018 at 10:28:23AM +0100, Matt Redfearn wrote:
> > @@ -260,6 +260,11 @@
> >   	jr		ra
> >   	andi		v1, a2, STORMASK
>
> This patch looks good, well spotted!
>
> But whats that v1 write about? Any ideas? Seems to go back to the git
> epoch, and $3 isn't in the clobber lists when __bzero* is called.

No idea what the original intent was, but I've verified that v1 does 
indeed get clobbered if this path is hit. Patch incoming!

Thanks,
Matt

> Cheers
> James
>
> >   
> > +.Lsmall_fixup\@:
> > +	PTR_SUBU	a2, t1, a0
> > +	jr		ra
> > +	 PTR_ADDIU	a2, 1
> > +