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From:   Sean Anderson <sean.anderson@seco.com>
To:     "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Madalin Bucur <madalin.bucur@nxp.com>, netdev@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Paolo Abeni <pabeni@redhat.com>,
        Russell King <linux@armlinux.org.uk>,
        Eric Dumazet <edumazet@google.com>,
        Sean Anderson <sean.anderson@seco.com>
Subject: [PATCH net-next 16/28] net: fman: Inline several functions into initialization
Date:   Fri, 17 Jun 2022 16:33:00 -0400
Message-Id: <20220617203312.3799646-17-sean.anderson@seco.com>
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There are several small functions which weer only necessary because the
initialization functions didn't have access to the mac private data. Now
that they do, just do things directly.

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

 .../net/ethernet/freescale/fman/fman_dtsec.c  | 59 +++----------------
 .../net/ethernet/freescale/fman/fman_memac.c  | 47 ++-------------
 .../net/ethernet/freescale/fman/fman_tgec.c   | 43 +++-----------
 3 files changed, 21 insertions(+), 128 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index 8da50c56c440..44718c34c899 100644
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -814,26 +814,6 @@ static void free_init_resources(struct fman_mac *dtsec)
 	dtsec->unicast_addr_hash = NULL;
 }
 
-static int dtsec_cfg_max_frame_len(struct fman_mac *dtsec, u16 new_val)
-{
-	if (is_init_done(dtsec->dtsec_drv_param))
-		return -EINVAL;
-
-	dtsec->dtsec_drv_param->maximum_frame = new_val;
-
-	return 0;
-}
-
-static int dtsec_cfg_pad_and_crc(struct fman_mac *dtsec, bool new_val)
-{
-	if (is_init_done(dtsec->dtsec_drv_param))
-		return -EINVAL;
-
-	dtsec->dtsec_drv_param->tx_pad_crc = new_val;
-
-	return 0;
-}
-
 static void graceful_start(struct fman_mac *dtsec)
 {
 	struct dtsec_regs __iomem *regs = dtsec->regs;
@@ -1274,18 +1254,6 @@ static void adjust_link_dtsec(struct mac_device *mac_dev)
 			err);
 }
 
-static int dtsec_get_version(struct fman_mac *dtsec, u32 *mac_version)
-{
-	struct dtsec_regs __iomem *regs = dtsec->regs;
-
-	if (!is_init_done(dtsec->dtsec_drv_param))
-		return -EINVAL;
-
-	*mac_version = ioread32be(&regs->tsec_id);
-
-	return 0;
-}
-
 static int dtsec_set_exception(struct fman_mac *dtsec,
 			       enum fman_mac_exceptions exception, bool enable)
 {
@@ -1526,7 +1494,7 @@ int dtsec_initialization(struct mac_device *mac_dev,
 	int			err;
 	struct mac_priv_s	*priv;
 	struct fman_mac_params	params;
-	u32			version;
+	struct fman_mac		*dtsec;
 
 	priv = mac_dev->priv;
 	mac_dev->set_promisc		= dtsec_set_promiscuous;
@@ -1554,34 +1522,25 @@ int dtsec_initialization(struct mac_device *mac_dev,
 		goto _return;
 	}
 
-	err = dtsec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = dtsec_cfg_pad_and_crc(mac_dev->fman_mac, true);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = dtsec_init(mac_dev->fman_mac);
+	dtsec = mac_dev->fman_mac;
+	dtsec->dtsec_drv_param->maximum_frame = fman_get_max_frm();
+	dtsec->dtsec_drv_param->tx_pad_crc = true;
+	err = dtsec_init(dtsec);
 	if (err < 0)
 		goto _return_fm_mac_free;
 
 	/* For 1G MAC, disable by default the MIB counters overflow interrupt */
-	err = mac_dev->set_exception(mac_dev->fman_mac,
-				     FM_MAC_EX_1G_RX_MIB_CNT_OVFL, false);
+	err = dtsec_set_exception(dtsec, FM_MAC_EX_1G_RX_MIB_CNT_OVFL, false);
 	if (err < 0)
 		goto _return_fm_mac_free;
 
-	err = dtsec_get_version(mac_dev->fman_mac, &version);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	dev_info(mac_dev->dev, "FMan dTSEC version: 0x%08x\n", version);
+	dev_info(mac_dev->dev, "FMan dTSEC version: 0x%08x\n",
+		 ioread32be(&dtsec->regs->tsec_id));
 
 	goto _return;
 
 _return_fm_mac_free:
-	dtsec_free(mac_dev->fman_mac);
+	dtsec_free(dtsec);
 
 _return:
 	return err;
diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index 2b4df8f3a27a..a97815287b31 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -792,37 +792,6 @@ static void adjust_link_memac(struct mac_device *mac_dev)
 			err);
 }
 
-static int memac_cfg_max_frame_len(struct fman_mac *memac, u16 new_val)
-{
-	if (is_init_done(memac->memac_drv_param))
-		return -EINVAL;
-
-	memac->memac_drv_param->max_frame_length = new_val;
-
-	return 0;
-}
-
-static int memac_cfg_reset_on_init(struct fman_mac *memac, bool enable)
-{
-	if (is_init_done(memac->memac_drv_param))
-		return -EINVAL;
-
-	memac->memac_drv_param->reset_on_init = enable;
-
-	return 0;
-}
-
-static int memac_cfg_fixed_link(struct fman_mac *memac,
-				struct fixed_phy_status *fixed_link)
-{
-	if (is_init_done(memac->memac_drv_param))
-		return -EINVAL;
-
-	memac->memac_drv_param->fixed_link = fixed_link;
-
-	return 0;
-}
-
 static int memac_set_tx_pause_frames(struct fman_mac *memac, u8 priority,
 				     u16 pause_time, u16 thresh_time)
 {
@@ -1207,6 +1176,7 @@ int memac_initialization(struct mac_device *mac_dev,
 	struct mac_priv_s	*priv;
 	struct fman_mac_params	 params;
 	struct fixed_phy_status *fixed_link;
+	struct fman_mac		*memac;
 
 	priv = mac_dev->priv;
 	mac_dev->set_promisc		= memac_set_promiscuous;
@@ -1237,13 +1207,9 @@ int memac_initialization(struct mac_device *mac_dev,
 		goto _return;
 	}
 
-	err = memac_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = memac_cfg_reset_on_init(mac_dev->fman_mac, true);
-	if (err < 0)
-		goto _return_fm_mac_free;
+	memac = mac_dev->fman_mac;
+	memac->memac_drv_param->max_frame_length = fman_get_max_frm();
+	memac->memac_drv_param->reset_on_init = true;
 
 	if (!mac_dev->phy_node && of_phy_is_fixed_link(mac_node)) {
 		struct phy_device *phy;
@@ -1273,10 +1239,7 @@ int memac_initialization(struct mac_device *mac_dev,
 		fixed_link->asym_pause = phy->asym_pause;
 
 		put_device(&phy->mdio.dev);
-
-		err = memac_cfg_fixed_link(mac_dev->fman_mac, fixed_link);
-		if (err < 0)
-			goto _return_fixed_link_free;
+		memac->memac_drv_param->fixed_link = fixed_link;
 	}
 
 	err = memac_init(mac_dev->fman_mac);
diff --git a/drivers/net/ethernet/freescale/fman/fman_tgec.c b/drivers/net/ethernet/freescale/fman/fman_tgec.c
index ca0e00386c66..32ee1674ff2f 100644
--- a/drivers/net/ethernet/freescale/fman/fman_tgec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_tgec.c
@@ -441,16 +441,6 @@ static int tgec_set_promiscuous(struct fman_mac *tgec, bool new_val)
 	return 0;
 }
 
-static int tgec_cfg_max_frame_len(struct fman_mac *tgec, u16 new_val)
-{
-	if (is_init_done(tgec->cfg))
-		return -EINVAL;
-
-	tgec->cfg->max_frame_length = new_val;
-
-	return 0;
-}
-
 static int tgec_set_tx_pause_frames(struct fman_mac *tgec,
 				    u8 __maybe_unused priority, u16 pause_time,
 				    u16 __maybe_unused thresh_time)
@@ -618,18 +608,6 @@ static void adjust_link_void(struct mac_device *mac_dev)
 {
 }
 
-static int tgec_get_version(struct fman_mac *tgec, u32 *mac_version)
-{
-	struct tgec_regs __iomem *regs = tgec->regs;
-
-	if (!is_init_done(tgec->cfg))
-		return -EINVAL;
-
-	*mac_version = ioread32be(&regs->tgec_id);
-
-	return 0;
-}
-
 static int tgec_set_exception(struct fman_mac *tgec,
 			      enum fman_mac_exceptions exception, bool enable)
 {
@@ -809,7 +787,7 @@ int tgec_initialization(struct mac_device *mac_dev,
 {
 	int err;
 	struct fman_mac_params	params;
-	u32			version;
+	struct fman_mac		*tgec;
 
 	mac_dev->set_promisc		= tgec_set_promiscuous;
 	mac_dev->change_addr		= tgec_modify_mac_address;
@@ -835,26 +813,19 @@ int tgec_initialization(struct mac_device *mac_dev,
 		goto _return;
 	}
 
-	err = tgec_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm());
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	err = tgec_init(mac_dev->fman_mac);
+	tgec = mac_dev->fman_mac;
+	tgec->cfg->max_frame_length = fman_get_max_frm();
+	err = tgec_init(tgec);
 	if (err < 0)
 		goto _return_fm_mac_free;
 
 	/* For 10G MAC, disable Tx ECC exception */
-	err = mac_dev->set_exception(mac_dev->fman_mac,
-				     FM_MAC_EX_10G_TX_ECC_ER, false);
+	err = tgec_set_exception(tgec, FM_MAC_EX_10G_TX_ECC_ER, false);
 	if (err < 0)
 		goto _return_fm_mac_free;
 
-	err = tgec_get_version(mac_dev->fman_mac, &version);
-	if (err < 0)
-		goto _return_fm_mac_free;
-
-	pr_info("FMan XGEC version: 0x%08x\n", version);
-
+	pr_info("FMan XGEC version: 0x%08x\n",
+		ioread32be(&tgec->regs->tgec_id));
 	goto _return;
 
 _return_fm_mac_free:
-- 
2.35.1.1320.gc452695387.dirty