Commit 4ee9b0dc authored by Russell King (Oracle)'s avatar Russell King (Oracle) Committed by Jakub Kicinski
Browse files

net: phylink: remove an_enabled 



The Autoneg bit in the advertising bitmap and state->an_enabled are
always identical. state->an_enabled is now no longer used by any
drivers, so lets kill this duplication.

Signed-off-by: default avatarRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: default avatarSimon Horman <simon.horman@corigine.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 459fd2f1

drivers/net/phy/phylink.c

+17 −20
Original line number Diff line number Diff line
@@ -843,7 +843,6 @@ static int phylink_parse_mode(struct phylink *pl, struct fwnode_handle *fwnode) 
		phylink_set(pl->supported, Autoneg);

		phylink_set(pl->supported, Asym_Pause);

		phylink_set(pl->supported, Pause);

		pl->link_config.an_enabled = true;

		pl->cfg_link_an_mode = MLO_AN_INBAND;



		switch (pl->link_config.interface) {
@@ -945,9 +944,6 @@ static int phylink_parse_mode(struct phylink *pl, struct fwnode_handle *fwnode) 
				    "failed to validate link configuration for in-band status\n");

			return -EINVAL;

		}



		/* Check if MAC/PCS also supports Autoneg. */

		pl->link_config.an_enabled = phylink_test(pl->supported, Autoneg);

	}



	return 0;
@@ -957,7 +953,8 @@ static void phylink_apply_manual_flow(struct phylink *pl, 
				      struct phylink_link_state *state)

{

	/* If autoneg is disabled, pause AN is also disabled */

	if (!state->an_enabled)

	if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,

			       state->advertising))

		state->pause &= ~MLO_PAUSE_AN;



	/* Manual configuration of pause modes */
@@ -997,21 +994,22 @@ static void phylink_mac_config(struct phylink *pl, 
			       const struct phylink_link_state *state)

{

	phylink_dbg(pl,

		    "%s: mode=%s/%s/%s/%s/%s adv=%*pb pause=%02x link=%u an=%u\n",

		    "%s: mode=%s/%s/%s/%s/%s adv=%*pb pause=%02x link=%u\n",

		    __func__, phylink_an_mode_str(pl->cur_link_an_mode),

		    phy_modes(state->interface),

		    phy_speed_to_str(state->speed),

		    phy_duplex_to_str(state->duplex),

		    phy_rate_matching_to_str(state->rate_matching),

		    __ETHTOOL_LINK_MODE_MASK_NBITS, state->advertising,

		    state->pause, state->link, state->an_enabled);

		    state->pause, state->link);



	pl->mac_ops->mac_config(pl->config, pl->cur_link_an_mode, state);

}



static void phylink_mac_pcs_an_restart(struct phylink *pl)

{

	if (pl->link_config.an_enabled &&

	if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,

			      pl->link_config.advertising) &&

	    phy_interface_mode_is_8023z(pl->link_config.interface) &&

	    phylink_autoneg_inband(pl->cur_link_an_mode)) {

		if (pl->pcs)
@@ -1138,9 +1136,9 @@ static void phylink_mac_pcs_get_state(struct phylink *pl, 
	linkmode_copy(state->advertising, pl->link_config.advertising);

	linkmode_zero(state->lp_advertising);

	state->interface = pl->link_config.interface;

	state->an_enabled = pl->link_config.an_enabled;

	state->rate_matching = pl->link_config.rate_matching;

	if (state->an_enabled) {

	if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,

			      state->advertising)) {

		state->speed = SPEED_UNKNOWN;

		state->duplex = DUPLEX_UNKNOWN;

		state->pause = MLO_PAUSE_NONE;
@@ -1531,7 +1529,6 @@ struct phylink *phylink_create(struct phylink_config *config, 
	pl->link_config.pause = MLO_PAUSE_AN;

	pl->link_config.speed = SPEED_UNKNOWN;

	pl->link_config.duplex = DUPLEX_UNKNOWN;

	pl->link_config.an_enabled = true;

	pl->mac_ops = mac_ops;

	__set_bit(PHYLINK_DISABLE_STOPPED, &pl->phylink_disable_state);

	timer_setup(&pl->link_poll, phylink_fixed_poll, 0);
@@ -2136,8 +2133,9 @@ static void phylink_get_ksettings(const struct phylink_link_state *state, 
		kset->base.speed = state->speed;

		kset->base.duplex = state->duplex;

	}

	kset->base.autoneg = state->an_enabled ? AUTONEG_ENABLE :

				AUTONEG_DISABLE;

	kset->base.autoneg = linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,

					       state->advertising) ?

				AUTONEG_ENABLE : AUTONEG_DISABLE;

}



/**
@@ -2284,9 +2282,8 @@ int phylink_ethtool_ksettings_set(struct phylink *pl, 
	/* We have ruled out the case with a PHY attached, and the

	 * fixed-link cases.  All that is left are in-band links.

	 */

	config.an_enabled = kset->base.autoneg == AUTONEG_ENABLE;

	linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, config.advertising,

			 config.an_enabled);

			 kset->base.autoneg == AUTONEG_ENABLE);



	/* If this link is with an SFP, ensure that changes to advertised modes

	 * also cause the associated interface to be selected such that the
@@ -2320,13 +2317,14 @@ int phylink_ethtool_ksettings_set(struct phylink *pl, 
	}



	/* If autonegotiation is enabled, we must have an advertisement */

	if (config.an_enabled && phylink_is_empty_linkmode(config.advertising))

	if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,

			      config.advertising) &&

	    phylink_is_empty_linkmode(config.advertising))

		return -EINVAL;



	mutex_lock(&pl->state_mutex);

	pl->link_config.speed = config.speed;

	pl->link_config.duplex = config.duplex;

	pl->link_config.an_enabled = config.an_enabled;



	if (pl->link_config.interface != config.interface) {

		/* The interface changed, e.g. 1000base-X <-> 2500base-X */
@@ -2932,7 +2930,6 @@ static int phylink_sfp_config_phy(struct phylink *pl, u8 mode, 
	config.speed = SPEED_UNKNOWN;

	config.duplex = DUPLEX_UNKNOWN;

	config.pause = MLO_PAUSE_AN;

	config.an_enabled = pl->link_config.an_enabled;



	/* Ignore errors if we're expecting a PHY to attach later */

	ret = phylink_validate(pl, support, &config);
@@ -3001,7 +2998,6 @@ static int phylink_sfp_config_optical(struct phylink *pl) 
	config.speed = SPEED_UNKNOWN;

	config.duplex = DUPLEX_UNKNOWN;

	config.pause = MLO_PAUSE_AN;

	config.an_enabled = true;



	/* For all the interfaces that are supported, reduce the sfp_support

	 * mask to only those link modes that can be supported.
@@ -3300,7 +3296,8 @@ void phylink_mii_c22_pcs_decode_state(struct phylink_link_state *state, 
	/* If there is no link or autonegotiation is disabled, the LP advertisement

	 * data is not meaningful, so don't go any further.

	 */

	if (!state->link || !state->an_enabled)

	if (!state->link || !linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,

					       state->advertising))

		return;



	switch (state->interface) {

include/linux/phylink.h

+0 −2
Original line number Diff line number Diff line
@@ -93,7 +93,6 @@ static inline bool phylink_autoneg_inband(unsigned int mode) 
 *   the medium link mode (@speed and @duplex) and the speed/duplex of the phy

 *   interface mode (@interface) are different.

 * @link: true if the link is up.

 * @an_enabled: true if autonegotiation is enabled/desired.

 * @an_complete: true if autonegotiation has completed.

 */

struct phylink_link_state {
@@ -105,7 +104,6 @@ struct phylink_link_state { 
	int pause;

	int rate_matching;

	unsigned int link:1;

	unsigned int an_enabled:1;

	unsigned int an_complete:1;

};