linux-kernel - [PATCH] net: stmmac: using pm_runtime_resume_and_get instead of pm_runtime_get

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Date:   Fri,  8 Apr 2022 08:12:50 +0000
From:   cgel.zte@...il.com
To:     peppe.cavallaro@...com
Cc:     alexandre.torgue@...s.st.com, joabreu@...opsys.com,
        davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] net: stmmac: using pm_runtime_resume_and_get instead of pm_runtime_get_sync

From: Minghao Chi <chi.minghao@....com.cn>

Using pm_runtime_resume_and_get is more appropriate
for simplifing code

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
---
 .../net/ethernet/stmicro/stmmac/stmmac_mdio.c | 24 +++++++------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index a5d150c5f3d8..9bc625fccca0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -88,11 +88,9 @@ static int stmmac_xgmac2_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
 	u32 tmp, addr, value = MII_XGMAC_BUSY;
 	int ret;
 
-	ret = pm_runtime_get_sync(priv->device);
-	if (ret < 0) {
-		pm_runtime_put_noidle(priv->device);
+	ret = pm_runtime_resume_and_get(priv->device);
+	if (ret < 0)
 		return ret;
-	}
 
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_data, tmp,
@@ -156,11 +154,9 @@ static int stmmac_xgmac2_mdio_write(struct mii_bus *bus, int phyaddr,
 	u32 addr, tmp, value = MII_XGMAC_BUSY;
 	int ret;
 
-	ret = pm_runtime_get_sync(priv->device);
-	if (ret < 0) {
-		pm_runtime_put_noidle(priv->device);
+	ret = pm_runtime_resume_and_get(priv->device);
+	if (ret < 0)
 		return ret;
-	}
 
 	/* Wait until any existing MII operation is complete */
 	if (readl_poll_timeout(priv->ioaddr + mii_data, tmp,
@@ -229,11 +225,9 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
 	int data = 0;
 	u32 v;
 
-	data = pm_runtime_get_sync(priv->device);
-	if (data < 0) {
-		pm_runtime_put_noidle(priv->device);
+	data = pm_runtime_resume_and_get(priv->device);
+	if (data < 0)
 		return data;
-	}
 
 	value |= (phyaddr << priv->hw->mii.addr_shift)
 		& priv->hw->mii.addr_mask;
@@ -297,11 +291,9 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
 	u32 value = MII_BUSY;
 	u32 v;
 
-	ret = pm_runtime_get_sync(priv->device);
-	if (ret < 0) {
-		pm_runtime_put_noidle(priv->device);
+	ret = pm_runtime_resume_and_get(priv->device);
+	if (ret < 0)
 		return ret;
-	}
 
 	value |= (phyaddr << priv->hw->mii.addr_shift)
 		& priv->hw->mii.addr_mask;
-- 
2.25.1