diff mbox series

[net-next,v3,34/47] net: fman: Change return type of disable to void

Message ID 20220715215954.1449214-35-sean.anderson@seco.com (mailing list archive)
State New, archived
Headers show
Series net: dpaa: Convert to phylink | expand

Commit Message

Sean Anderson July 15, 2022, 9:59 p.m. UTC 
When disabling, there is nothing we can do about errors. In fact, the
only error which can occur is misuse of the API. Just warn in the mac
driver instead.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
---

(no changes since v1)

 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c   | 5 +----
 drivers/net/ethernet/freescale/fman/fman_dtsec.c | 7 ++-----
 drivers/net/ethernet/freescale/fman/fman_memac.c | 8 +++-----
 drivers/net/ethernet/freescale/fman/fman_tgec.c  | 7 ++-----
 drivers/net/ethernet/freescale/fman/mac.h        | 2 +-
 5 files changed, 9 insertions(+), 20 deletions(-)

Comments

Camelia Alexandra Groza July 21, 2022, 1:08 p.m. UTC | #1 
> -----Original Message-----
> From: Sean Anderson <sean.anderson@seco.com>
> Sent: Saturday, July 16, 2022 1:00
> To: David S . Miller <davem@davemloft.net>; Jakub Kicinski
> <kuba@kernel.org>; Madalin Bucur <madalin.bucur@nxp.com>;
> netdev@vger.kernel.org
> Cc: Paolo Abeni <pabeni@redhat.com>; Eric Dumazet
> <edumazet@google.com>; linux-arm-kernel@lists.infradead.org; Russell
> King <linux@armlinux.org.uk>; linux-kernel@vger.kernel.org; Sean Anderson
> <sean.anderson@seco.com>
> Subject: [PATCH net-next v3 34/47] net: fman: Change return type of disable
> to void
> 
> When disabling, there is nothing we can do about errors. In fact, the
> only error which can occur is misuse of the API. Just warn in the mac
> driver instead.
> 
> Signed-off-by: Sean Anderson <sean.anderson@seco.com>

Acked-by: Camelia Groza <camelia.groza@nxp.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index 02b588c46fcf..d378247a6d0c 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -290,10 +290,7 @@  static int dpaa_stop(struct net_device *net_dev)
 
 	if (mac_dev->phy_dev)
 		phy_stop(mac_dev->phy_dev);
-	err = mac_dev->disable(mac_dev->fman_mac);
-	if (err < 0)
-		netif_err(priv, ifdown, net_dev, "mac_dev->disable() = %d\n",
-			  err);
+	mac_dev->disable(mac_dev->fman_mac);
 
 	for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) {
 		error = fman_port_disable(mac_dev->port[i]);
diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index 7acd57424034..f2dd07b714ea 100644
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -871,13 +871,12 @@  static int dtsec_enable(struct fman_mac *dtsec)
 	return 0;
 }
 
-static int dtsec_disable(struct fman_mac *dtsec)
+static void dtsec_disable(struct fman_mac *dtsec)
 {
 	struct dtsec_regs __iomem *regs = dtsec->regs;
 	u32 tmp;
 
-	if (!is_init_done(dtsec->dtsec_drv_param))
-		return -EINVAL;
+	WARN_ON_ONCE(!is_init_done(dtsec->dtsec_drv_param));
 
 	/* Graceful stop - Assert the graceful Rx/Tx stop bit */
 	graceful_stop(dtsec);
@@ -885,8 +884,6 @@  static int dtsec_disable(struct fman_mac *dtsec)
 	tmp = ioread32be(&regs->maccfg1);
 	tmp &= ~(MACCFG1_RX_EN | MACCFG1_TX_EN);
 	iowrite32be(tmp, &regs->maccfg1);
-
-	return 0;
 }
 
 static int dtsec_set_tx_pause_frames(struct fman_mac *dtsec,
diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index 19619af99f9c..8ad93a4c0c21 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -701,19 +701,17 @@  static int memac_enable(struct fman_mac *memac)
 	return 0;
 }
 
-static int memac_disable(struct fman_mac *memac)
+static void memac_disable(struct fman_mac *memac)
+
 {
 	struct memac_regs __iomem *regs = memac->regs;
 	u32 tmp;
 
-	if (!is_init_done(memac->memac_drv_param))
-		return -EINVAL;
+	WARN_ON_ONCE(!is_init_done(memac->memac_drv_param));
 
 	tmp = ioread32be(&regs->command_config);
 	tmp &= ~(CMD_CFG_RX_EN | CMD_CFG_TX_EN);
 	iowrite32be(tmp, &regs->command_config);
-
-	return 0;
 }
 
 static int memac_set_promiscuous(struct fman_mac *memac, bool new_val)
diff --git a/drivers/net/ethernet/freescale/fman/fman_tgec.c b/drivers/net/ethernet/freescale/fman/fman_tgec.c
index 010c0e0b57d7..f4cdf0cf7c32 100644
--- a/drivers/net/ethernet/freescale/fman/fman_tgec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_tgec.c
@@ -408,19 +408,16 @@  static int tgec_enable(struct fman_mac *tgec)
 	return 0;
 }
 
-static int tgec_disable(struct fman_mac *tgec)
+static void tgec_disable(struct fman_mac *tgec)
 {
 	struct tgec_regs __iomem *regs = tgec->regs;
 	u32 tmp;
 
-	if (!is_init_done(tgec->cfg))
-		return -EINVAL;
+	WARN_ON_ONCE(!is_init_done(tgec->cfg));
 
 	tmp = ioread32be(&regs->command_config);
 	tmp &= ~(CMD_CFG_RX_EN | CMD_CFG_TX_EN);
 	iowrite32be(tmp, &regs->command_config);
-
-	return 0;
 }
 
 static int tgec_set_promiscuous(struct fman_mac *tgec, bool new_val)
diff --git a/drivers/net/ethernet/freescale/fman/mac.h b/drivers/net/ethernet/freescale/fman/mac.h
index c5fb4d46210f..a55efcb7998c 100644
--- a/drivers/net/ethernet/freescale/fman/mac.h
+++ b/drivers/net/ethernet/freescale/fman/mac.h
@@ -38,7 +38,7 @@  struct mac_device {
 	bool allmulti;
 
 	int (*enable)(struct fman_mac *mac_dev);
-	int (*disable)(struct fman_mac *mac_dev);
+	void (*disable)(struct fman_mac *mac_dev);
 	void (*adjust_link)(struct mac_device *mac_dev);
 	int (*set_promisc)(struct fman_mac *mac_dev, bool enable);
 	int (*change_addr)(struct fman_mac *mac_dev, const enet_addr_t *enet_addr);