[PATCH RFC net-next 07/13] net: phylink: simplify ksettings_set() implementation
From: Russell King <hidden>
Date: 2020-06-30 14:29:13
Subsystem:
ethernet phy library, networking drivers, sff/sfp/sfp+ module support, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Russell King, Linus Torvalds
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 <redacted> --- 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) {
--
2.20.1