Re: [PATCH net v3 6/8] net: add a sysctl to opt out of virtio net hdr checksum validation

[Michael S. Tsirkin]

On Tue, Oct 20, 2026 at 07:13:42PM -0400, Willem de Bruijn wrote:
> Michael S. Tsirkin wrote:
> > On Tue, Oct 20, 2026 at 03:54:23PM -0400, Willem de Bruijn wrote:
> > > > +/*
> > > > + * Protects changes to virtio_net_hdr_csum_check_disabled_key and each
> > > > + * net->core.sysctl_virtio_net_hdr_csum_check. Readers don't use a lock.
> > > 
> > > it appears that they take the mutex_lock below
> > 
> > Some of them? But
> > virtio_net_hdr_csum_check_disabled doesn't, that's the point, right?
> > 
> Yes, but the statement is then too absolute:
> _some_ (or most) readers don't use a lock.

don't use->don't need?