Re: [PATCH v2 cmpxchg 12/13] sh: Emulate one-byte cmpxchg
From: John Paul Adrian Glaubitz
Date: Thu May 02 2024 - 01:12:07 EST
On Wed, 2024-05-01 at 22:06 -0700, Paul E. McKenney wrote:
> > Does cmpxchg_emu_u8() have any advantages over the native xchg_u8()?
>
> That would be 8-bit xchg() rather than 8-byte cmpxchg(), correct?
Indeed. I realized this after sending my reply.
> Or am I missing something subtle here that makes sh also support one-byte
> (8-bit) cmpxchg()?
Is there an explanation available that explains the rationale behind the
series, so I can learn more about it?
Also, I am opposed to removing Alpha entirely as it's still being actively
maintained in Debian and Gentoo and works well.
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913