net: add promiscuous mode configuration support

This configuration is mostly needed for controllers attached to switches
with different MAC address configurations or for debugging networking
issues.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.barebox.org/20221108061009.4168735-1-o.rempel@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/eth.c b/net/eth.c
index 8f6ff7db3a..19654cdd51 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -31,6 +31,14 @@ struct eth_ethaddr {
 
 static LIST_HEAD(ethaddr_list);
 
+int eth_set_promisc(struct eth_device *edev, bool enable)
+{
+	if (!edev->set_promisc)
+		return -EOPNOTSUPP;
+
+	return edev->set_promisc(edev, enable);
+}
+
 int eth_set_ethaddr(struct eth_device *edev, const char *ethaddr)
 {
 	int ret;