Now that the last in-tree driver (b53) has been converted to PHYLINK, we
can get rid of all of code that catered to working with drivers
implementing only PHYLIB's adjust_link callback.
Florian Fainelli (2):
net: dsa: Remove fixed_link_update member
net: dsa: Remove adjust_link paths
include/net/dsa.h | 11 ----
net/dsa/dsa.c | 3 +-
net/dsa/port.c | 135 ++++------------------------------------------
3 files changed, 12 insertions(+), 137 deletions(-)
--
2.34.1
Now that we no longer any drivers using PHYLIB's adjust_link callback,
remove all paths that made use of adjust_link as well as the associated
functions.
Signed-off-by: Florian Fainelli <[email protected]>
---
include/net/dsa.h | 7 ---
net/dsa/dsa.c | 3 +-
net/dsa/port.c | 135 ++++------------------------------------------
3 files changed, 12 insertions(+), 133 deletions(-)
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 678f1fd8b189..eef702dbea78 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -24,8 +24,6 @@
struct dsa_8021q_context;
struct tc_action;
-struct phy_device;
-struct phylink_link_state;
#define DSA_TAG_PROTO_NONE_VALUE 0
#define DSA_TAG_PROTO_BRCM_VALUE 1
@@ -867,11 +865,6 @@ struct dsa_switch_ops {
int (*phy_write)(struct dsa_switch *ds, int port,
int regnum, u16 val);
- /*
- * Link state adjustment (called from libphy)
- */
- void (*adjust_link)(struct dsa_switch *ds, int port,
- struct phy_device *phydev);
/*
* PHYLINK integration
*/
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 2f347cd37316..12521a7d4048 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -1511,8 +1511,7 @@ static int dsa_switch_probe(struct dsa_switch *ds)
ds->ops->phylink_mac_config ||
ds->ops->phylink_mac_finish ||
ds->ops->phylink_mac_link_down ||
- ds->ops->phylink_mac_link_up ||
- ds->ops->adjust_link)
+ ds->ops->phylink_mac_link_up)
return -EINVAL;
}
diff --git a/net/dsa/port.c b/net/dsa/port.c
index c6febc3d96d9..08b6d91da430 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -1535,25 +1535,6 @@ void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp,
cpu_dp->tag_ops = tag_ops;
}
-static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp)
-{
- struct device_node *phy_dn;
- struct phy_device *phydev;
-
- phy_dn = of_parse_phandle(dp->dn, "phy-handle", 0);
- if (!phy_dn)
- return NULL;
-
- phydev = of_phy_find_device(phy_dn);
- if (!phydev) {
- of_node_put(phy_dn);
- return ERR_PTR(-EPROBE_DEFER);
- }
-
- of_node_put(phy_dn);
- return phydev;
-}
-
static struct phylink_pcs *
dsa_port_phylink_mac_select_pcs(struct phylink_config *config,
phy_interface_t interface)
@@ -1622,11 +1603,8 @@ static void dsa_port_phylink_mac_link_down(struct phylink_config *config,
if (dsa_port_is_user(dp))
phydev = dp->user->phydev;
- if (!ds->ops->phylink_mac_link_down) {
- if (ds->ops->adjust_link && phydev)
- ds->ops->adjust_link(ds, dp->index, phydev);
+ if (!ds->ops->phylink_mac_link_down)
return;
- }
ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface);
}
@@ -1641,11 +1619,8 @@ static void dsa_port_phylink_mac_link_up(struct phylink_config *config,
struct dsa_port *dp = dsa_phylink_to_port(config);
struct dsa_switch *ds = dp->ds;
- if (!ds->ops->phylink_mac_link_up) {
- if (ds->ops->adjust_link && phydev)
- ds->ops->adjust_link(ds, dp->index, phydev);
+ if (!ds->ops->phylink_mac_link_up)
return;
- }
ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev,
speed, duplex, tx_pause, rx_pause);
@@ -1708,78 +1683,6 @@ void dsa_port_phylink_destroy(struct dsa_port *dp)
dp->pl = NULL;
}
-static int dsa_shared_port_setup_phy_of(struct dsa_port *dp, bool enable)
-{
- struct dsa_switch *ds = dp->ds;
- struct phy_device *phydev;
- int port = dp->index;
- int err = 0;
-
- phydev = dsa_port_get_phy_device(dp);
- if (!phydev)
- return 0;
-
- if (IS_ERR(phydev))
- return PTR_ERR(phydev);
-
- if (enable) {
- err = genphy_resume(phydev);
- if (err < 0)
- goto err_put_dev;
-
- err = genphy_read_status(phydev);
- if (err < 0)
- goto err_put_dev;
- } else {
- err = genphy_suspend(phydev);
- if (err < 0)
- goto err_put_dev;
- }
-
- if (ds->ops->adjust_link)
- ds->ops->adjust_link(ds, port, phydev);
-
- dev_dbg(ds->dev, "enabled port's phy: %s", phydev_name(phydev));
-
-err_put_dev:
- put_device(&phydev->mdio.dev);
- return err;
-}
-
-static int dsa_shared_port_fixed_link_register_of(struct dsa_port *dp)
-{
- struct device_node *dn = dp->dn;
- struct dsa_switch *ds = dp->ds;
- struct phy_device *phydev;
- int port = dp->index;
- phy_interface_t mode;
- int err;
-
- err = of_phy_register_fixed_link(dn);
- if (err) {
- dev_err(ds->dev,
- "failed to register the fixed PHY of port %d\n",
- port);
- return err;
- }
-
- phydev = of_phy_find_device(dn);
-
- err = of_get_phy_mode(dn, &mode);
- if (err)
- mode = PHY_INTERFACE_MODE_NA;
- phydev->interface = mode;
-
- genphy_read_status(phydev);
-
- if (ds->ops->adjust_link)
- ds->ops->adjust_link(ds, port, phydev);
-
- put_device(&phydev->mdio.dev);
-
- return 0;
-}
-
static int dsa_shared_port_phylink_register(struct dsa_port *dp)
{
struct dsa_switch *ds = dp->ds;
@@ -1983,44 +1886,28 @@ int dsa_shared_port_link_register_of(struct dsa_port *dp)
dsa_switches_apply_workarounds))
return -EINVAL;
- if (!ds->ops->adjust_link) {
- if (missing_link_description) {
- dev_warn(ds->dev,
- "Skipping phylink registration for %s port %d\n",
- dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
- } else {
- dsa_shared_port_link_down(dp);
+ if (missing_link_description) {
+ dev_warn(ds->dev,
+ "Skipping phylink registration for %s port %d\n",
+ dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index);
+ } else {
+ dsa_shared_port_link_down(dp);
- return dsa_shared_port_phylink_register(dp);
- }
- return 0;
+ return dsa_shared_port_phylink_register(dp);
}
- dev_warn(ds->dev,
- "Using legacy PHYLIB callbacks. Please migrate to PHYLINK!\n");
-
- if (of_phy_is_fixed_link(dp->dn))
- return dsa_shared_port_fixed_link_register_of(dp);
- else
- return dsa_shared_port_setup_phy_of(dp, true);
+ return 0;
}
void dsa_shared_port_link_unregister_of(struct dsa_port *dp)
{
- struct dsa_switch *ds = dp->ds;
-
- if (!ds->ops->adjust_link && dp->pl) {
+ if (dp->pl) {
rtnl_lock();
phylink_disconnect_phy(dp->pl);
rtnl_unlock();
dsa_port_phylink_destroy(dp);
return;
}
-
- if (of_phy_is_fixed_link(dp->dn))
- of_phy_deregister_fixed_link(dp->dn);
- else
- dsa_shared_port_setup_phy_of(dp, false);
}
int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr,
--
2.34.1
On Thu, 25 Apr 2024 11:53:34 -0700 Florian Fainelli wrote:
> Now that the last in-tree driver (b53) has been converted to PHYLINK, we
> can get rid of all of code that catered to working with drivers
> implementing only PHYLIB's adjust_link callback.
more to delete:
net/dsa/port.c:1600:21: warning: variable 'phydev' set but not used [-Wunused-but-set-variable]
1600 | struct phy_device *phydev = NULL;
| ^
--
pw-bot: cr
Hi Florian,
kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Florian-Fainelli/net-dsa-Remove-fixed_link_update-member/20240426-025626
base: net-next/main
patch link: https://lore.kernel.org/r/20240425185336.2084871-3-florian.fainelli%40broadcom.com
patch subject: [PATCH net-next 2/2] net: dsa: Remove adjust_link paths
config: arm-defconfig (https://download.01.org/0day-ci/archive/20240426/[email protected]/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240426/[email protected]/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>):
>> net/dsa/port.c:1600:21: warning: variable 'phydev' set but not used [-Wunused-but-set-variable]
struct phy_device *phydev = NULL;
^
1 warning generated.
vim +/phydev +1600 net/dsa/port.c
dd805cf3e80e03 Russell King (Oracle 2023-05-25 1594)
8ae674964e67eb Florian Fainelli 2019-12-16 1595 static void dsa_port_phylink_mac_link_down(struct phylink_config *config,
77373d49de22e8 Ioana Ciornei 2019-05-28 1596 unsigned int mode,
77373d49de22e8 Ioana Ciornei 2019-05-28 1597 phy_interface_t interface)
77373d49de22e8 Ioana Ciornei 2019-05-28 1598 {
dd0c9855b41310 Russell King (Oracle 2024-04-10 1599) struct dsa_port *dp = dsa_phylink_to_port(config);
0e27921816ad99 Ioana Ciornei 2019-05-28 @1600 struct phy_device *phydev = NULL;
77373d49de22e8 Ioana Ciornei 2019-05-28 1601 struct dsa_switch *ds = dp->ds;
77373d49de22e8 Ioana Ciornei 2019-05-28 1602
57d77986e74287 Vladimir Oltean 2021-10-20 1603 if (dsa_port_is_user(dp))
6ca80638b90cec Florian Fainelli 2023-10-23 1604 phydev = dp->user->phydev;
0e27921816ad99 Ioana Ciornei 2019-05-28 1605
d074ebf637f87c Florian Fainelli 2024-04-25 1606 if (!ds->ops->phylink_mac_link_down)
77373d49de22e8 Ioana Ciornei 2019-05-28 1607 return;
77373d49de22e8 Ioana Ciornei 2019-05-28 1608
77373d49de22e8 Ioana Ciornei 2019-05-28 1609 ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface);
77373d49de22e8 Ioana Ciornei 2019-05-28 1610 }
77373d49de22e8 Ioana Ciornei 2019-05-28 1611
--
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https://github.com/intel/lkp-tests/wiki