netdev - [patch net-next RFC 05/12] dsa: use devlink helper to generate physical port name

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Date:   Thu, 22 Mar 2018 11:55:15 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, idosch@...lanox.com,
        jakub.kicinski@...ronome.com, mlxsw@...lanox.com, andrew@...n.ch,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        michael.chan@...adcom.com, ganeshgr@...lsio.com,
        saeedm@...lanox.com, simon.horman@...ronome.com,
        pieter.jansenvanvuuren@...ronome.com, john.hurley@...ronome.com,
        dirk.vandermerwe@...ronome.com, alexander.h.duyck@...el.com,
        ogerlitz@...lanox.com, dsahern@...il.com, vijaya.guvva@...ium.com,
        satananda.burla@...ium.com, raghu.vatsavayi@...ium.com,
        felix.manlunas@...ium.com, gospo@...adcom.com,
        sathya.perla@...adcom.com, vasundhara-v.volam@...adcom.com,
        tariqt@...lanox.com, eranbe@...lanox.com,
        jeffrey.t.kirsher@...el.com
Subject: [patch net-next RFC 05/12] dsa: use devlink helper to generate physical port name

From: Jiri Pirko <jiri@...lanox.com>

Since devlink knows the info needed to generate the physical port name
in a generic way for all devlink users, use the helper to do the job.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 net/dsa/slave.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 18561af7a8f1..8d71dd672e52 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -19,6 +19,7 @@
 #include <net/rtnetlink.h>
 #include <net/pkt_cls.h>
 #include <net/tc_act/tc_mirred.h>
+#include <net/devlink.h>
 #include <linux/if_bridge.h>
 #include <linux/netpoll.h>
 #include <linux/ptp_classify.h>
@@ -727,10 +728,7 @@ static int dsa_slave_get_phys_port_name(struct net_device *dev,
 {
 	struct dsa_port *dp = dsa_slave_to_port(dev);
 
-	if (snprintf(name, len, "p%d", dp->index) >= len)
-		return -EINVAL;
-
-	return 0;
+	return devlink_port_get_phys_port_name(&dp->devlink_port, name, len);
 }
 
 static struct dsa_mall_tc_entry *
-- 
2.14.3