Re: [PATCH v1 1/5] LoongArch: Define format for AM{SWAP/ADD}.{B/H}, DBAR and BSTRINS.D

[Tiezhu Yang]

On 2026/4/1 下午4:23, bot+bpf-ci@xxxxxxxxxx wrote:
> > diff --git a/arch/loongarch/kernel/cpu-probe.c b/arch/loongarch/kernel/cpu-probe.c
> > index 657bbae6c1c7..93466fc7d33d 100644
> > --- a/arch/loongarch/kernel/cpu-probe.c
> > +++ b/arch/loongarch/kernel/cpu-probe.c
> > @@ -177,6 +177,10 @@ static void cpu_probe_common(struct cpuinfo_loongarch *c)
> >   		c->options |= LOONGARCH_CPU_LAM;
> >   		elf_hwcap |= HWCAP_LOONGARCH_LAM;
> >   	}
> > +	if (config & CPUCFG2_LAM_BH) {
> > +		c->options |= LOONGARCH_CPU_LAM_BH;
> > +		elf_hwcap |= HWCAP_LOONGARCH_LAM_BH;
> > +	}
>
> Should there be a corresponding entry in the "Features" line of
> /proc/cpuinfo for the new lam_bh capability?
>
> Every other feature that sets elf_hwcap in cpu_probe_common() also
> has a matching seq_puts() in show_cpuinfo() in proc.c:
>
> arch/loongarch/kernel/proc.c:show_cpuinfo() {
>      ...
>      if (cpu_has_lam)
>              seq_puts(m, " lam");
>      if (cpu_has_scq)
>              seq_puts(m, " scq");
>      ...
> }
>
> The new cpu_has_lam_bh is missing from this list.

Yes, I think so, thank you.
I will wait for more comments before sending v2.

Thanks,
Tiezhu