diff mbox series

[net-next,v2,RESEND] net: dsa: Simplify with scoped for each OF child loop

Message ID 20240830070037.3529832-1-ruanjinjie@huawei.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series [net-next,v2,RESEND] net: dsa: Simplify with scoped for each OF child loop | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for 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: 16 this patch: 16
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 16 this patch: 16
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: 16 this patch: 16
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 52 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

Commit Message

Jinjie Ruan Aug. 30, 2024, 7 a.m. UTC
Use scoped for_each_available_child_of_node_scoped() when iterating over
device nodes to make code a bit simpler.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
---
v1 -> v2 RESNED:
- Remove the goto.
- next -> net-next
---
 net/dsa/dsa.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

Comments

Andrew Lunn Aug. 30, 2024, 2:44 p.m. UTC | #1
On Fri, Aug 30, 2024 at 03:00:37PM +0800, Jinjie Ruan wrote:
> Use scoped for_each_available_child_of_node_scoped() when iterating over
> device nodes to make code a bit simpler.
> 
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
> ---
> v1 -> v2 RESNED:
> - Remove the goto.
> - next -> net-next
> ---
>  net/dsa/dsa.c | 24 ++++++++++--------------
>  1 file changed, 10 insertions(+), 14 deletions(-)
> 
> diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
> index 668c729946ea..24f566838621 100644
> --- a/net/dsa/dsa.c
> +++ b/net/dsa/dsa.c
> @@ -1264,9 +1264,8 @@ static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)
>  static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
>  				     struct device_node *dn)
>  {
> -	struct device_node *ports, *port;
> +	struct device_node *ports;
>  	struct dsa_port *dp;
> -	int err = 0;

Why?


Patches should be small, simple, obviously correct. This change makes
the patch more complex, harder to review, and less obviously correct.

All these patches have questionable value. Most probably don't fix
anything which is broken. They are using up a lot of
Reviewer/Maintainer time. Don't make it worse by making unneeded
changes.

    Andrew

---
pw-bot: cr
diff mbox series

Patch

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 668c729946ea..24f566838621 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -1264,9 +1264,8 @@  static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)
 static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
 				     struct device_node *dn)
 {
-	struct device_node *ports, *port;
+	struct device_node *ports;
 	struct dsa_port *dp;
-	int err = 0;
 	u32 reg;
 
 	ports = of_get_child_by_name(dn, "ports");
@@ -1279,33 +1278,30 @@  static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
 		}
 	}
 
-	for_each_available_child_of_node(ports, port) {
-		err = of_property_read_u32(port, "reg", &reg);
+	for_each_available_child_of_node_scoped(ports, port) {
+		int err = of_property_read_u32(port, "reg", &reg);
 		if (err) {
-			of_node_put(port);
-			goto out_put_node;
+			of_node_put(ports);
+			return err;
 		}
 
 		if (reg >= ds->num_ports) {
 			dev_err(ds->dev, "port %pOF index %u exceeds num_ports (%u)\n",
 				port, reg, ds->num_ports);
-			of_node_put(port);
-			err = -EINVAL;
-			goto out_put_node;
+			of_node_put(ports);
+			return -EINVAL;
 		}
 
 		dp = dsa_to_port(ds, reg);
 
 		err = dsa_port_parse_of(dp, port);
 		if (err) {
-			of_node_put(port);
-			goto out_put_node;
+			of_node_put(ports);
+			return err;
 		}
 	}
 
-out_put_node:
-	of_node_put(ports);
-	return err;
+	return 0;
 }
 
 static int dsa_switch_parse_member_of(struct dsa_switch *ds,