Hi Paul, thanks for your patch! This caught my eye: On Tue, Jun 4, 2024 at 7:04 PM Paul E. McKenney <paulmck@xxxxxxxxxx> wrote: > Use the new cmpxchg_emu_u8() to emulate one-byte cmpxchg() on ARM systems > with ARCH < ARMv6K. ARCH == ARMv6. This ARCH < ARMv6K comes from inversion of the the a bit terse comment for ifndef CONFIG_CPU_V6, which means "out of the post-v6 CPUs, the following applies to those > V6". The code in the patch, IIUC make use of cmpxchg_emu_u8() if and only if the CPU is V6. > -#ifndef CONFIG_CPU_V6 /* min ARCH >= ARMv6K */ > +#ifdef CONFIG_CPU_V6 /* min ARCH < ARMv6K */ This is now a set with one member so this comment should say: /* ARCH == ARMv6 */ After this change. Yours, Linus Walleij