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[net-next,RFC,04/10] devlink: append split port number to the port name

Message ID 20210113121222.733517-5-jiri@resnulli.us
State Superseded
Headers show
Series introduce line card support for modular switch | expand

Commit Message

Jiri Pirko Jan. 13, 2021, 12:12 p.m. UTC 
From: Jiri Pirko <jiri@nvidia.com>

Instead of doing sprintf twice in case the port is split or not, append
the split port suffix in case the port is split.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
---
 net/core/devlink.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)
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Patch

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 9c76edf8c8af..347976b88404 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -8654,12 +8654,10 @@  static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
 	switch (attrs->flavour) {
 	case DEVLINK_PORT_FLAVOUR_PHYSICAL:
 	case DEVLINK_PORT_FLAVOUR_VIRTUAL:
-		if (!attrs->split)
-			n = snprintf(name, len, "p%u", attrs->phys.port_number);
-		else
-			n = snprintf(name, len, "p%us%u",
-				     attrs->phys.port_number,
-				     attrs->phys.split_subport_number);
+		n = snprintf(name, len, "p%u", attrs->phys.port_number);
+		if (attrs->split)
+			n += snprintf(name + n, len - n, "s%u",
+				      attrs->phys.split_subport_number);
 		break;
 	case DEVLINK_PORT_FLAVOUR_CPU:
 	case DEVLINK_PORT_FLAVOUR_DSA: