[PATCH v3] net: phy: leds: Don't make our own link speed names

[PATCH v3] net: phy: leds: Don't make our own link speed names

[Kyle Roeschley]

The phy core provides a handy phy_speed_to_str() helper, so use that
instead of doing our own formatting of the different known link speeds.
To do this, increase PHY_LED_TRIGGER_SPEED_SUFFIX_SIZE to 11 so we can fit
'Unsupported' if necessary.

Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com>
---
v3: const-ify suffix param of phy_led_trigger_format_name() to silence warning.
v2: Increase PHY_LED_TRIGGER_SPEED_SUFFIX_SIZE to fit 'Unsupported'.

 drivers/net/phy/phy_led_triggers.c | 15 ++-------------
 include/linux/phy_led_triggers.h   |  2 +-
 2 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/net/phy/phy_led_triggers.c b/drivers/net/phy/phy_led_triggers.c
index 491efc1bf5c4..263385b75bba 100644
--- a/drivers/net/phy/phy_led_triggers.c
+++ b/drivers/net/phy/phy_led_triggers.c
@@ -67,7 +67,7 @@ void phy_led_trigger_change_speed(struct phy_device *phy)
 EXPORT_SYMBOL_GPL(phy_led_trigger_change_speed);
 
 static void phy_led_trigger_format_name(struct phy_device *phy, char *buf,
-					size_t size, char *suffix)
+					size_t size, const char *suffix)
 {
 	snprintf(buf, size, PHY_ID_FMT ":%s",
 		 phy->mdio.bus->id, phy->mdio.addr, suffix);
@@ -77,20 +77,9 @@ static int phy_led_trigger_register(struct phy_device *phy,
 				    struct phy_led_trigger *plt,
 				    unsigned int speed)
 {
-	char name_suffix[PHY_LED_TRIGGER_SPEED_SUFFIX_SIZE];
-
 	plt->speed = speed;
-
-	if (speed < SPEED_1000)
-		snprintf(name_suffix, sizeof(name_suffix), "%dMbps", speed);
-	else if (speed == SPEED_2500)
-		snprintf(name_suffix, sizeof(name_suffix), "2.5Gbps");
-	else
-		snprintf(name_suffix, sizeof(name_suffix), "%dGbps",
-			 DIV_ROUND_CLOSEST(speed, 1000));
-
 	phy_led_trigger_format_name(phy, plt->name, sizeof(plt->name),
-				    name_suffix);
+				    phy_speed_to_str(speed));
 	plt->trigger.name = plt->name;
 
 	return led_trigger_register(&plt->trigger);
diff --git a/include/linux/phy_led_triggers.h b/include/linux/phy_led_triggers.h
index b37b05bfd1a6..4587ce362535 100644
--- a/include/linux/phy_led_triggers.h
+++ b/include/linux/phy_led_triggers.h
@@ -20,7 +20,7 @@ struct phy_device;
 #include <linux/leds.h>
 #include <linux/phy.h>
 
-#define PHY_LED_TRIGGER_SPEED_SUFFIX_SIZE	10
+#define PHY_LED_TRIGGER_SPEED_SUFFIX_SIZE	11
 
 #define PHY_LINK_LED_TRIGGER_NAME_SIZE (MII_BUS_ID_SIZE + \
 				       FIELD_SIZEOF(struct mdio_device, addr)+\
-- 
2.19.1

Re: [PATCH v3] net: phy: leds: Don't make our own link speed names

[David Miller]

From: Kyle Roeschley <kyle.roeschley@ni.com>
Date: Fri, 9 Nov 2018 12:48:03 -0600

> The phy core provides a handy phy_speed_to_str() helper, so use that
> instead of doing our own formatting of the different known link speeds.
> To do this, increase PHY_LED_TRIGGER_SPEED_SUFFIX_SIZE to 11 so we can fit
> 'Unsupported' if necessary.
> 
> Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com>

Applied to net-next.