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

On Tue, Oct 20, 2026 at 07:13:42PM -0400, Willem de Bruijn wrote:

Michael S. Tsirkin wrote:

quoted

On Tue, Oct 20, 2026 at 03:54:23PM -0400, Willem de Bruijn wrote:

quoted

quoted

+/*
+ * 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?