From 6df6398f7c8b481ce83f28143bc08a5231616deb Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Thu, 5 May 2022 19:51:31 -0700 Subject: net: add netif_inherit_tso_max() To make later patches smaller create a helper for inheriting the TSO limitations of a lower device. The TSO in the name is not an accident, subsequent patches will replace GSO with TSO in more names. Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- net/core/dev.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'net/core') diff --git a/net/core/dev.c b/net/core/dev.c index c2d73595a7c3..eef1d19b130f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2992,6 +2992,18 @@ undo_rx: } EXPORT_SYMBOL(netif_set_real_num_queues); +/** + * netif_inherit_tso_max() - copy all TSO limits from a lower device to an upper + * @to: netdev to update + * @from: netdev from which to copy the limits + */ +void netif_inherit_tso_max(struct net_device *to, const struct net_device *from) +{ + netif_set_gso_max_size(to, from->gso_max_size); + netif_set_gso_max_segs(to, from->gso_max_segs); +} +EXPORT_SYMBOL(netif_inherit_tso_max); + /** * netif_get_num_default_rss_queues - default number of RSS queues * -- cgit v1.2.3