On Tue, 20 Oct 2026 at 08:14, Linus Torvalds
<[email protected]> wrote:
>
> On Tue, 20 Oct 2026 at 03:19, Ingo Molnar <[email protected]> wrote:
> >
> > ( BTW., there's a new dependency introduced by this series,
> > if an architecture gets rid of __get_user(), then it must
> > define arch_get_kernel_nofault(), otherwise it will gain
> > new uses of __get_user()/__put_user() via the generic implementations
> > of __get_kernel_nofault() and __put_kernel_nofault(). No big deal
> > I suppose. )
>
> Yeah. It didn't actually look too bad to just remove __get_user and
> __put_user in general, but I ran out of motivation.
Bah. I'm using claude as a fancy coccinelle script, and ended up doing
the ObviouslyCorrect(tm) safe cases.
And it all really does look obviously correct, but ...
Anyway, the branch has been partially rebased to add the acked-by from
Michael, and now has a number of those "obvious" patches for alpha,
hexagon, 32-bit arm and powerpc.
I think I have - once again - run out of motivation to go further.
There are still various __get_user and __put_user calls around, but
they are starting to get rare, and I've run out of cases that look
obvious.
For example, I looked at the sparc32 signal cases, and decided
somebody else needs to do that part. It just looks too messy, and I
can't find it in myself to care. Same goes for m68k, loongarch, parisc
and mips. I just ran out of steam.
But I think this *did* get rid of the bulk of the noise elsewhere, so
now it's hopefully a case of "a motivated architecture maintainer has
a few cases to look at".
Linus
