diff mbox series

[RFC,net-next,08/12] net: dsa: use dsa_tree_for_each_cpu_port in dsa_tree_{setup,teardown}_master

Message ID 20220523104256.3556016-9-olteanv@gmail.com (mailing list archive)
State RFC
Delegated to: Netdev Maintainers
Headers show
Series DSA changes for multiple CPU ports (part 3) | expand

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Context Check Description
netdev/tree_selection success Clearly marked for net-next, async
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 21 this patch: 21
netdev/cc_maintainers warning 3 maintainers not CCed: davem@davemloft.net pabeni@redhat.com edumazet@google.com
netdev/build_clang success Errors and warnings before: 18 this patch: 18
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 21 this patch: 21
netdev/checkpatch fail ERROR: Macros with complex values should be enclosed in parentheses
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Vladimir Oltean May 23, 2022, 10:42 a.m. UTC 
From: Vladimir Oltean <vladimir.oltean@nxp.com>

More logic will be added to dsa_tree_setup_master() and
dsa_tree_teardown_master() in upcoming changes.

Reduce the indentation by one level in these functions by introducing
and using a dedicated iterator for CPU ports of a tree.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
 include/net/dsa.h |  4 ++++
 net/dsa/dsa2.c    | 46 +++++++++++++++++++++-------------------------
 2 files changed, 25 insertions(+), 25 deletions(-)

Comments

Florian Fainelli May 23, 2022, 6:01 p.m. UTC | #1 
On 5/23/22 03:42, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@nxp.com>
> 
> More logic will be added to dsa_tree_setup_master() and
> dsa_tree_teardown_master() in upcoming changes.
> 
> Reduce the indentation by one level in these functions by introducing
> and using a dedicated iterator for CPU ports of a tree.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>

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

Patch

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 14f07275852b..ad345fa17297 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -555,6 +555,10 @@  static inline bool dsa_is_user_port(struct dsa_switch *ds, int p)
 	list_for_each_entry((_dp), &(_dst)->ports, list) \
 		if (dsa_port_is_user((_dp)))
 
+#define dsa_tree_for_each_cpu_port(_dp, _dst) \
+	list_for_each_entry((_dp), &(_dst)->ports, list) \
+		if (dsa_port_is_cpu((_dp)))
+
 #define dsa_switch_for_each_port(_dp, _ds) \
 	list_for_each_entry((_dp), &(_ds)->dst->ports, list) \
 		if ((_dp)->ds == (_ds))
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 4f0042339d4f..74167bf0fbe5 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -1043,26 +1043,24 @@  static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
 
 static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
 {
-	struct dsa_port *dp;
+	struct dsa_port *cpu_dp;
 	int err = 0;
 
 	rtnl_lock();
 
-	list_for_each_entry(dp, &dst->ports, list) {
-		if (dsa_port_is_cpu(dp)) {
-			struct net_device *master = dp->master;
-			bool admin_up = (master->flags & IFF_UP) &&
-					!qdisc_tx_is_noop(master);
+	dsa_tree_for_each_cpu_port(cpu_dp, dst) {
+		struct net_device *master = cpu_dp->master;
+		bool admin_up = (master->flags & IFF_UP) &&
+				!qdisc_tx_is_noop(master);
 
-			err = dsa_master_setup(master, dp);
-			if (err)
-				break;
+		err = dsa_master_setup(master, cpu_dp);
+		if (err)
+			break;
 
-			/* Replay master state event */
-			dsa_tree_master_admin_state_change(dst, master, admin_up);
-			dsa_tree_master_oper_state_change(dst, master,
-							  netif_oper_up(master));
-		}
+		/* Replay master state event */
+		dsa_tree_master_admin_state_change(dst, master, admin_up);
+		dsa_tree_master_oper_state_change(dst, master,
+						  netif_oper_up(master));
 	}
 
 	rtnl_unlock();
@@ -1072,22 +1070,20 @@  static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
 
 static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)
 {
-	struct dsa_port *dp;
+	struct dsa_port *cpu_dp;
 
 	rtnl_lock();
 
-	list_for_each_entry(dp, &dst->ports, list) {
-		if (dsa_port_is_cpu(dp)) {
-			struct net_device *master = dp->master;
+	dsa_tree_for_each_cpu_port(cpu_dp, dst) {
+		struct net_device *master = cpu_dp->master;
 
-			/* Synthesizing an "admin down" state is sufficient for
-			 * the switches to get a notification if the master is
-			 * currently up and running.
-			 */
-			dsa_tree_master_admin_state_change(dst, master, false);
+		/* Synthesizing an "admin down" state is sufficient for
+		 * the switches to get a notification if the master is
+		 * currently up and running.
+		 */
+		dsa_tree_master_admin_state_change(dst, master, false);
 
-			dsa_master_teardown(master);
-		}
+		dsa_master_teardown(master);
 	}
 
 	rtnl_unlock();