On Sat, 4 Nov 2023 17:16:12 +0800
"wuqiang.matt" wrote:
> Macro __cmpxchg() renamed to __cmpxchg_32() to emphasize it's explicit
> support of 32bit data size, BUILD_BUG_ON() added to avoid any possible
> misuses with unsupported data types.
>
> In case CONFIG_ARC_HAS_LLSC is undefined, arch_cmp
Macro __cmpxchg() renamed to __cmpxchg_32() to emphasize it's explicit
support of 32bit data size, BUILD_BUG_ON() added to avoid any possible
misuses with unsupported data types.
In case CONFIG_ARC_HAS_LLSC is undefined, arch_cmpxchg() uses spinlock
to accomplish SMP-safety, so the BUILD_BUG_ON ch
