Re: [PATCH V9 16/24] LoongArch: Add misc common routines

[Palmer Dabbelt]

On Sat, 30 Apr 2022 03:41:59 PDT (-0700), Arnd Bergmann wrote:
> On Sat, Apr 30, 2022 at 12:00 PM Huacai Chen <chenhuacai@xxxxxxxxx> wrote:
> > On Sat, Apr 30, 2022 at 5:50 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:
> > >
> > > On Sat, Apr 30, 2022 at 11:05 AM Huacai Chen <chenhuacai@xxxxxxxxxxx> wrote:
> > >
> > > > +unsigned long __xchg_small(volatile void *ptr, unsigned long val, unsigned int size)
> > > > +{
> > > > +       u32 old32, mask, temp;
> > > > +       volatile u32 *ptr32;
> > > > +       unsigned int shift;
> > > > +
> > > > +       /* Check that ptr is naturally aligned */
> > >
> > > As discussed, please remove this function and all the references to it.
> >
> > It seems that "generic ticket spinlock" hasn't been merged in 5.18?
>
> No, but we can merge it together with the loongarch architecture for 5.19.
>
> I suggested you coordinate with Guo Ren and Palmer Dabbelt about how
> to best merge it. The latest version was pasted two weeks ago [1], and
> it sounds like there are only minor issues to work out and that I can merge
> v4 into the asm-generic tree before merging the loongarch code in the
> same place.
>
>      Arnd
>
> [1] https://lore.kernel.org/lkml/20220414220214.24556-1-palmer@xxxxxxxxxxxx/

I can just send another version, IIRC it was just that discussion about 
the memory barrier and there's already prototype code so it shouldn't be 
too bad.  I was hoping to do it sooner, sorry.