netdev - [PATCH net-next 2/5] bridge: propagate BR_ flags updates through sysfs to switchdev

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Date:   Fri,  9 Mar 2018 19:03:05 -0800
From:   Igor Mitsyanko <igor.mitsyanko.os@...ntenna.com>
To:     bridge@...ts.linux-foundation.org, netdev@...r.kernel.org
Cc:     sergey.matyukevich.os@...ntenna.com, smaksimenko@...ntenna.com,
        ashevchenko@...ntenna.com, dlebed@...ntenna.com, jiri@...nulli.us,
        ivecera@...hat.com, igor.mitsyanko.os@...ntenna.com
Subject: [PATCH net-next 2/5] bridge: propagate BR_ flags updates through sysfs to switchdev

sysfs interface to configure bridge flags only updates SW copy but does
not notify hardware through switchdev interface. Make sure it is.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@...ntenna.com>
---
 net/bridge/br_sysfs_if.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 126a8ea..9bdd177 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -51,6 +51,7 @@ static int store_flag(struct net_bridge_port *p, unsigned long v,
 		      unsigned long mask)
 {
 	unsigned long flags;
+	int err;
 
 	flags = p->flags;
 
@@ -59,10 +60,16 @@ static int store_flag(struct net_bridge_port *p, unsigned long v,
 	else
 		flags &= ~mask;
 
-	if (flags != p->flags) {
-		p->flags = flags;
-		br_port_flags_change(p, mask);
-	}
+	if (flags == p->flags)
+		return 0;
+
+	err = br_switchdev_set_port_flag(p, flags, mask);
+	if (err)
+		return err;
+
+	p->flags = flags;
+	br_port_flags_change(p, mask);
+
 	return 0;
 }
 
-- 
2.9.5