On Tue, Jan 06, 2026 at 03:20:43PM +0100, Richard Weinberger wrote:
> ----- Ursprüngliche Mail -----
> > Von: "Boqun Feng" <[email protected]>
> > An: "linux-um" <[email protected]>, "x86" <[email protected]>
> > CC: "richard" <[email protected]>, "anton ivanov" 
> > <[email protected]>, "Johannes Berg"
> > <[email protected]>, "tglx" <[email protected]>, "mingo" 
> > <[email protected]>, "bp" <[email protected]>, "dave
> > hansen" <[email protected]>, "hpa" <[email protected]>, "Miguel 
> > Ojeda" <[email protected]>, "Boqun Feng"
> > <[email protected]>, "Gary Guo" <[email protected]>, "Björn Roy Baron" 
> > <[email protected]>, "Benno Lossin"
> > <[email protected]>, "Andreas Hindborg" <[email protected]>, "Alice 
> > Ryhl" <[email protected]>, "Trevor Gross"
> > <[email protected]>, "dakr" <[email protected]>, "linux-kernel" 
> > <[email protected]>, "Rust for Linux Kernel"
> > <[email protected]>, "FUJITA Tomonori" 
> > <[email protected]>
> > Gesendet: Dienstag, 6. Januar 2026 04:40:34
> > Betreff: [PATCH] arch: um/x86: Select ARCH_SUPPORTS_ATOMIC_RMW for UML_X86
> 
> > x86 atomic instructions are used for um on UML_X86, therefore atomics
> > on UML_X86 support native atomic RmW as x86 does, hence select
> > ARCH_SUPPORTS_ATOMIC_RMW.
> > 
> > Signed-off-by: Boqun Feng <[email protected]>
> > ---
> > UM & x86 maintainers,
> > 
> > I need this to avoid a build error for Rust atomics since Rust currently
> > only support Atomic<i8/i16> on ARCH_SUPPORTS_ATOMIC_RMW archs. I will
> > add it to my upcoming PR if I get some Acked-by, thanks!
> > 
> > arch/x86/um/Kconfig | 1 +
> > 1 file changed, 1 insertion(+)
> 
> Acked-by: Richard Weinberger <[email protected]>
> 

Queued with both tags applied, thank you both!

Regards,
Boqun

> Thanks,
> //richard

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