diff mbox series

[PARTIAL,RESEND,1/2] net: mvpp2: use port_count to remove ports

Message ID 20240808-mvpp2_child_nodes-v1-1-19f854dd669d@gmail.com (mailing list archive)
State Accepted
Commit e81d00a6b3b7d619060223d0754ca02e7d4ba90f
Delegated to: Netdev Maintainers
Headers show
Series net: mvpp2: rework child node/port removal handling | expand

Checks

Context Check Description
netdev/series_format warning Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 29 this patch: 29
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 29 this patch: 29
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 35 this patch: 35
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 44 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-08-10--18-00 (tests: 707)

Commit Message

Javier Carrasco Aug. 8, 2024, 9:47 a.m. UTC
As discussed in [1], there is no need to iterate over child nodes to
remove the list of ports. Instead, a loop up to `port_count` ports can
be used, and is in fact more reliable in case the child node
availability changes.

The suggested approach removes the need for the `fwnode` and
`port_fwnode` variables in mvpp2_remove() as well.

Link: https://lore.kernel.org/all/ZqdRgDkK1PzoI2Pf@shell.armlinux.org.uk/ [1]
Suggested-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 0d62a33afa80..0b5b2425de12 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -7655,12 +7655,8 @@  static int mvpp2_probe(struct platform_device *pdev)
 err_port_probe:
 	fwnode_handle_put(port_fwnode);
 
-	i = 0;
-	fwnode_for_each_available_child_node(fwnode, port_fwnode) {
-		if (priv->port_list[i])
-			mvpp2_port_remove(priv->port_list[i]);
-		i++;
-	}
+	for (i = 0; i < priv->port_count; i++)
+		mvpp2_port_remove(priv->port_list[i]);
 err_axi_clk:
 	clk_disable_unprepare(priv->axi_clk);
 err_mg_core_clk:
@@ -7677,18 +7673,13 @@  static int mvpp2_probe(struct platform_device *pdev)
 static void mvpp2_remove(struct platform_device *pdev)
 {
 	struct mvpp2 *priv = platform_get_drvdata(pdev);
-	struct fwnode_handle *fwnode = pdev->dev.fwnode;
-	int i = 0, poolnum = MVPP2_BM_POOLS_NUM;
-	struct fwnode_handle *port_fwnode;
+	int i, poolnum = MVPP2_BM_POOLS_NUM;
 
 	mvpp2_dbgfs_cleanup(priv);
 
-	fwnode_for_each_available_child_node(fwnode, port_fwnode) {
-		if (priv->port_list[i]) {
-			mutex_destroy(&priv->port_list[i]->gather_stats_lock);
-			mvpp2_port_remove(priv->port_list[i]);
-		}
-		i++;
+	for (i = 0; i < priv->port_count; i++) {
+		mutex_destroy(&priv->port_list[i]->gather_stats_lock);
+		mvpp2_port_remove(priv->port_list[i]);
 	}
 
 	destroy_workqueue(priv->stats_queue);
@@ -7711,7 +7702,7 @@  static void mvpp2_remove(struct platform_device *pdev)
 				  aggr_txq->descs_dma);
 	}
 
-	if (is_acpi_node(port_fwnode))
+	if (!dev_of_node(&pdev->dev))
 		return;
 
 	clk_disable_unprepare(priv->axi_clk);