diff mbox series

[RFC,net-next,07/13] net: phylink: simplify ksettings_set() implementation

Message ID E1jqHFy-0006PK-Qd@rmk-PC.armlinux.org.uk
State RFC
Delegated to: David Miller
Headers show
Series Phylink PCS updates | expand

Commit Message

Russell King (Oracle) June 30, 2020, 2:29 p.m. UTC
Simplify the ksettings_set() implementation to look more like phylib's
implementation; use a switch() for validating the autoneg setting, and
use the linkmode_modify() helper to set the autoneg bit in the
advertisement mask.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 drivers/net/phy/phylink.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

Comments

Ioana Ciornei July 20, 2020, 10:24 a.m. UTC | #1
On 6/30/20 5:29 PM, Russell King wrote:
> Simplify the ksettings_set() implementation to look more like phylib's
> implementation; use a switch() for validating the autoneg setting, and
> use the linkmode_modify() helper to set the autoneg bit in the
> advertisement mask.
> 
> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>

> ---
>   drivers/net/phy/phylink.c | 25 ++++++++++++-------------
>   1 file changed, 12 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
> index 424a927d7889..103d2a550415 100644
> --- a/drivers/net/phy/phylink.c
> +++ b/drivers/net/phy/phylink.c
> @@ -1314,25 +1314,24 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,
>   	__ETHTOOL_DECLARE_LINK_MODE_MASK(support);
>   	struct ethtool_link_ksettings our_kset;
>   	struct phylink_link_state config;
> +	const struct phy_setting *s;
>   	int ret;
>   
>   	ASSERT_RTNL();
>   
> -	if (kset->base.autoneg != AUTONEG_DISABLE &&
> -	    kset->base.autoneg != AUTONEG_ENABLE)
> -		return -EINVAL;
> -
>   	linkmode_copy(support, pl->supported);
>   	config = pl->link_config;
> +	config.an_enabled = kset->base.autoneg == AUTONEG_ENABLE;
>   
> -	/* Mask out unsupported advertisements */
> +	/* Mask out unsupported advertisements, and force the autoneg bit */
>   	linkmode_and(config.advertising, kset->link_modes.advertising,
>   		     support);
> +	linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising,
> +			 config.an_enabled);
>   
>   	/* FIXME: should we reject autoneg if phy/mac does not support it? */
> -	if (kset->base.autoneg == AUTONEG_DISABLE) {
> -		const struct phy_setting *s;
> -
> +	switch (kset->base.autoneg) {
> +	case AUTONEG_DISABLE:
>   		/* Autonegotiation disabled, select a suitable speed and
>   		 * duplex.
>   		 */
> @@ -1351,19 +1350,19 @@ int phylink_ethtool_ksettings_set(struct phylink *pl,
>   
>   		config.speed = s->speed;
>   		config.duplex = s->duplex;
> -		config.an_enabled = false;
> +		break;
>   
> -		__clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising);
> -	} else {
> +	case AUTONEG_ENABLE:
>   		/* If we have a fixed link, refuse to enable autonegotiation */
>   		if (pl->cur_link_an_mode == MLO_AN_FIXED)
>   			return -EINVAL;
>   
>   		config.speed = SPEED_UNKNOWN;
>   		config.duplex = DUPLEX_UNKNOWN;
> -		config.an_enabled = true;
> +		break;
>   
> -		__set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising);
> +	default:
> +		return -EINVAL;
>   	}
>   
>   	if (pl->phydev) {
>
diff mbox series

Patch

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 424a927d7889..103d2a550415 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1314,25 +1314,24 @@  int phylink_ethtool_ksettings_set(struct phylink *pl,
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(support);
 	struct ethtool_link_ksettings our_kset;
 	struct phylink_link_state config;
+	const struct phy_setting *s;
 	int ret;
 
 	ASSERT_RTNL();
 
-	if (kset->base.autoneg != AUTONEG_DISABLE &&
-	    kset->base.autoneg != AUTONEG_ENABLE)
-		return -EINVAL;
-
 	linkmode_copy(support, pl->supported);
 	config = pl->link_config;
+	config.an_enabled = kset->base.autoneg == AUTONEG_ENABLE;
 
-	/* Mask out unsupported advertisements */
+	/* Mask out unsupported advertisements, and force the autoneg bit */
 	linkmode_and(config.advertising, kset->link_modes.advertising,
 		     support);
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising,
+			 config.an_enabled);
 
 	/* FIXME: should we reject autoneg if phy/mac does not support it? */
-	if (kset->base.autoneg == AUTONEG_DISABLE) {
-		const struct phy_setting *s;
-
+	switch (kset->base.autoneg) {
+	case AUTONEG_DISABLE:
 		/* Autonegotiation disabled, select a suitable speed and
 		 * duplex.
 		 */
@@ -1351,19 +1350,19 @@  int phylink_ethtool_ksettings_set(struct phylink *pl,
 
 		config.speed = s->speed;
 		config.duplex = s->duplex;
-		config.an_enabled = false;
+		break;
 
-		__clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising);
-	} else {
+	case AUTONEG_ENABLE:
 		/* If we have a fixed link, refuse to enable autonegotiation */
 		if (pl->cur_link_an_mode == MLO_AN_FIXED)
 			return -EINVAL;
 
 		config.speed = SPEED_UNKNOWN;
 		config.duplex = DUPLEX_UNKNOWN;
-		config.an_enabled = true;
+		break;
 
-		__set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising);
+	default:
+		return -EINVAL;
 	}
 
 	if (pl->phydev) {