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authorJakub Kicinski <kuba@kernel.org>2022-05-05 19:51:31 -0700
committerDavid S. Miller <davem@davemloft.net>2022-05-06 12:07:56 +0100
commit6df6398f7c8b481ce83f28143bc08a5231616deb (patch)
tree5e61db4831d6b8a01f40a5e30e81b91429c9236e /net/core/dev.c
parentbeb21e3e8e261fc9f11050af17efe6de183b33d3 (diff)
downloadlinux-6df6398f7c8b481ce83f28143bc08a5231616deb.tar.gz
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 <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
-rw-r--r--net/core/dev.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index c2d73595a7c36..eef1d19b130fd 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2993,6 +2993,18 @@ 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
*
* Default value is the number of physical cores if there are only 1 or 2, or