Re: [PATCH] provide arch_test_bit_acquire for architectures that define test_bit

[Mikulas Patocka]

On Fri, 26 Aug 2022, Linus Torvalds wrote:

> On Fri, Aug 26, 2022 at 1:43 PM Mikulas Patocka <mpatocka@xxxxxxxxxx> wrote:
> >
> > I'm wondering why do the architectures redefine test_bit, if their
> > definition is equivalent to the generic one? We could just delete
> > arch_test_bit and use "#define arch_test_bit generic_test_bit" as well.
> 
> I think generic_test_bit() came after many of them, and when it
> didn't, people copied earlier architectures where they had already
> done their own.
> 
> > Another untested patch ... tomorrow, I'll try to compile it, at least for
> > architectures where Debian provides cross-compiling gcc.

I compile-tested this patch on alpha, s390x, m68k, sh, sparc32, sparc64. 
So, you can commit it to close these uncompilable-kernel reports.

Mikulas