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Date: Fri, 27 Jan 2023 14:40:30 +0100
From: Maxime Chevallier <maxime.chevallier@...tlin.com>
To: "David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Eric Dumazet <edumazet@...gle.com>,
Florian Fainelli <f.fainelli@...il.com>,
Andrew Lunn <andrew@...n.ch>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Claudiu Manoil <claudiu.manoil@....com>,
Vladimir Oltean <vladimir.oltean@....com>,
Paolo Abeni <pabeni@...hat.com>,
Ioana Ciornei <ioana.ciornei@....com>,
Madalin Bucur <madalin.bucur@....com>,
Heiner Kallweit <hkallweit1@...il.com>,
Russell King <linux@...linux.org.uk>
Cc: Maxime Chevallier <maxime.chevallier@...tlin.com>,
UNGLinuxDriver@...rochip.com, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com
Subject: [PATCH net-next] net: pcs: pcs-lynx: remove lynx_get_mdio_device() and refactor cleanup
As of today, the lynx_get_mdio_device() function is only used during the
cleanup phase, to free the underlying mdio_device. This can be
factored inside lynx_pcs_destroy().
Part of the effort driving this is the merge of pcs-altera-tse into
pcs-lynx, as both have very similar register layouts. One of the main
difference is that the TSE pcs is memory-mapped, and the merge into
pcs-lynx would first require a conversion of pcs-lynx to regmap.
Removing lynx_get_mdio_device() makes pcs-lynx somewhat less
mdio-specific.
The following drivers have been trivialy modified to account for the
modification :
- felix_vsc9959.c
- seville_vsc9953.c
- enetc_pf.c
- fman_memac.c
For dpaa2-mac.c, the cleanup sequence used put_device(&mdio->dev), which
is exactly what mdio_device_free(mdio) does.
Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>
---
Although this patch covers multiple drivers, it was kept as a single
patch to keep things bisectable. It was also only compile-tested, any
review and test is very welcome.
drivers/net/dsa/ocelot/felix_vsc9959.c | 3 ---
drivers/net/dsa/ocelot/seville_vsc9953.c | 3 ---
drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c | 4 ----
drivers/net/ethernet/freescale/enetc/enetc_pf.c | 8 ++------
drivers/net/ethernet/freescale/fman/fman_memac.c | 4 ----
drivers/net/pcs/pcs-lynx.c | 10 ++--------
include/linux/pcs-lynx.h | 2 --
7 files changed, 4 insertions(+), 30 deletions(-)
diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 43dc8ed4854d..1696d1eaa570 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -1054,13 +1054,10 @@ static void vsc9959_mdio_bus_free(struct ocelot *ocelot)
for (port = 0; port < ocelot->num_phys_ports; port++) {
struct phylink_pcs *phylink_pcs = felix->pcs[port];
- struct mdio_device *mdio_device;
if (!phylink_pcs)
continue;
- mdio_device = lynx_get_mdio_device(phylink_pcs);
- mdio_device_free(mdio_device);
lynx_pcs_destroy(phylink_pcs);
}
mdiobus_unregister(felix->imdio);
diff --git a/drivers/net/dsa/ocelot/seville_vsc9953.c b/drivers/net/dsa/ocelot/seville_vsc9953.c
index 88ed3a2e487a..0f7b947cb43b 100644
--- a/drivers/net/dsa/ocelot/seville_vsc9953.c
+++ b/drivers/net/dsa/ocelot/seville_vsc9953.c
@@ -946,13 +946,10 @@ static void vsc9953_mdio_bus_free(struct ocelot *ocelot)
for (port = 0; port < ocelot->num_phys_ports; port++) {
struct phylink_pcs *phylink_pcs = felix->pcs[port];
- struct mdio_device *mdio_device;
if (!phylink_pcs)
continue;
- mdio_device = lynx_get_mdio_device(phylink_pcs);
- mdio_device_free(mdio_device);
lynx_pcs_destroy(phylink_pcs);
}
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
index c886f33f8c6f..c4733c46c896 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
@@ -284,11 +284,7 @@ static void dpaa2_pcs_destroy(struct dpaa2_mac *mac)
struct phylink_pcs *phylink_pcs = mac->pcs;
if (phylink_pcs) {
- struct mdio_device *mdio = lynx_get_mdio_device(phylink_pcs);
- struct device *dev = &mdio->dev;
-
lynx_pcs_destroy(phylink_pcs);
- put_device(dev);
mac->pcs = NULL;
}
}
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 7facc7d5261e..39940bd25b8d 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -915,13 +915,9 @@ static int enetc_imdio_create(struct enetc_pf *pf)
static void enetc_imdio_remove(struct enetc_pf *pf)
{
- struct mdio_device *mdio_device;
-
- if (pf->pcs) {
- mdio_device = lynx_get_mdio_device(pf->pcs);
- mdio_device_free(mdio_device);
+ if (pf->pcs)
lynx_pcs_destroy(pf->pcs);
- }
+
if (pf->imdio) {
mdiobus_unregister(pf->imdio);
mdiobus_free(pf->imdio);
diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index 9349f841bd06..555729c7c67e 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -976,14 +976,10 @@ static int memac_init(struct fman_mac *memac)
static void pcs_put(struct phylink_pcs *pcs)
{
- struct mdio_device *mdiodev;
-
if (IS_ERR_OR_NULL(pcs))
return;
- mdiodev = lynx_get_mdio_device(pcs);
lynx_pcs_destroy(pcs);
- mdio_device_free(mdiodev);
}
static int memac_free(struct fman_mac *memac)
diff --git a/drivers/net/pcs/pcs-lynx.c b/drivers/net/pcs/pcs-lynx.c
index 3903f3baba2b..4457298f7fb8 100644
--- a/drivers/net/pcs/pcs-lynx.c
+++ b/drivers/net/pcs/pcs-lynx.c
@@ -34,14 +34,6 @@ enum sgmii_speed {
#define phylink_pcs_to_lynx(pl_pcs) container_of((pl_pcs), struct lynx_pcs, pcs)
#define lynx_to_phylink_pcs(lynx) (&(lynx)->pcs)
-struct mdio_device *lynx_get_mdio_device(struct phylink_pcs *pcs)
-{
- struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);
-
- return lynx->mdio;
-}
-EXPORT_SYMBOL(lynx_get_mdio_device);
-
static void lynx_pcs_get_state_usxgmii(struct mdio_device *pcs,
struct phylink_link_state *state)
{
@@ -335,6 +327,8 @@ void lynx_pcs_destroy(struct phylink_pcs *pcs)
{
struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);
+ mdio_device_free(lynx->mdio);
+
kfree(lynx);
}
EXPORT_SYMBOL(lynx_pcs_destroy);
diff --git a/include/linux/pcs-lynx.h b/include/linux/pcs-lynx.h
index 5712cc2ce775..d8327323ddf7 100644
--- a/include/linux/pcs-lynx.h
+++ b/include/linux/pcs-lynx.h
@@ -9,8 +9,6 @@
#include <linux/mdio.h>
#include <linux/phylink.h>
-struct mdio_device *lynx_get_mdio_device(struct phylink_pcs *pcs);
-
struct phylink_pcs *lynx_pcs_create(struct mdio_device *mdio);
void lynx_pcs_destroy(struct phylink_pcs *pcs);
--
2.39.1
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