On Tue, Apr 27, 2021 at 10:00:48AM -0700, Linus Torvalds wrote:
> On Mon, Apr 26, 2021 at 11:37 PM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> >
> > > > 354 if (this_cpu_read(cpu_info.smt_active)) {
> >
> > That's a valid construct and the kernel of full of percpuvar.member reads/writes.
>
> Hmm. "cpu_info" doesn't seem to be marked as a percpu data structure.
>
> Is this perhaps a UP config? Because we have:
Yes, most probably.
Just to be sure, I checked with i386_defconfig (which is SMP) and
sparse doesn't complain (but then does if CONFIG_SMP is set to 'n').
-- Luc
