diff mbox series

[net-next,4/8] net: dsa: use temporary dsa_device_ops variable

Message ID 20170929183635.8122-5-vivien.didelot@savoirfairelinux.com
State Superseded, archived
Delegated to: David Miller
Headers show
Series net: dsa: change dsa_ptr for a dsa_port | expand

Commit Message

Vivien Didelot Sept. 29, 2017, 6:36 p.m. UTC 
When resolving the DSA tagging protocol used by a CPU switch, use a
temporary "tag_ops" variable to store the dsa_device_ops instead of
using directly dst->tag_ops. This will make the future patches moving
this pointer around easier to read.

There is no functional changes.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
 net/dsa/dsa2.c   | 8 +++++---
 net/dsa/legacy.c | 8 +++++---
 2 files changed, 10 insertions(+), 6 deletions(-)

Comments

Florian Fainelli Sept. 29, 2017, 7:11 p.m. UTC | #1 
On 09/29/2017 11:36 AM, Vivien Didelot wrote:
> When resolving the DSA tagging protocol used by a CPU switch, use a
> temporary "tag_ops" variable to store the dsa_device_ops instead of
> using directly dst->tag_ops. This will make the future patches moving
> this pointer around easier to read.
> 
> There is no functional changes.
> 
> Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
diff mbox series

Patch

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index dcccaebde708..6a10c5c1639f 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -485,6 +485,7 @@  static int dsa_cpu_parse(struct dsa_port *port, u32 index,
 			 struct dsa_switch_tree *dst,
 			 struct dsa_switch *ds)
 {
+	const struct dsa_device_ops *tag_ops;
 	enum dsa_tag_protocol tag_protocol;
 	struct net_device *ethernet_dev;
 	struct device_node *ethernet;
@@ -514,13 +515,14 @@  static int dsa_cpu_parse(struct dsa_port *port, u32 index,
 	ds->cpu_port_mask |= BIT(index);
 
 	tag_protocol = ds->ops->get_tag_protocol(ds);
-	dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
-	if (IS_ERR(dst->tag_ops)) {
+	tag_ops = dsa_resolve_tag_protocol(tag_protocol);
+	if (IS_ERR(tag_ops)) {
 		dev_warn(ds->dev, "No tagger for this switch\n");
 		ds->cpu_port_mask &= ~BIT(index);
-		return PTR_ERR(dst->tag_ops);
+		return PTR_ERR(tag_ops);
 	}
 
+	dst->tag_ops = tag_ops;
 	dst->rcv = dst->tag_ops->rcv;
 
 	return 0;
diff --git a/net/dsa/legacy.c b/net/dsa/legacy.c
index ae505d8e4417..8e849013f69d 100644
--- a/net/dsa/legacy.c
+++ b/net/dsa/legacy.c
@@ -144,13 +144,15 @@  static int dsa_switch_setup_one(struct dsa_switch *ds,
 	 * switch.
 	 */
 	if (dst->cpu_dp->ds == ds) {
+		const struct dsa_device_ops *tag_ops;
 		enum dsa_tag_protocol tag_protocol;
 
 		tag_protocol = ops->get_tag_protocol(ds);
-		dst->tag_ops = dsa_resolve_tag_protocol(tag_protocol);
-		if (IS_ERR(dst->tag_ops))
-			return PTR_ERR(dst->tag_ops);
+		tag_ops = dsa_resolve_tag_protocol(tag_protocol);
+		if (IS_ERR(tag_ops))
+			return PTR_ERR(tag_ops);
 
+		dst->tag_ops = tag_ops;
 		dst->rcv = dst->tag_ops->rcv;
 	}