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From: Jeremy Linton <jeremy.linton@arm.com>
To: netdev@vger.kernel.org
Cc: davem@davemloft.net, andrew@lunn.ch, f.fainelli@gmail.com,
	hkallweit1@gmail.com, linux@armlinux.org.uk,
	madalin.bucur@oss.nxp.com, calvin.johnson@oss.nxp.com,
	linux-kernel@vger.kernel.org,
	Jeremy Linton <jeremy.linton@arm.com>
Subject: [RFC 06/11] net: phy: Hoist no phy detected state
Date: Fri, 22 May 2020 16:30:54 -0500	[thread overview]
Message-ID: <20200522213059.1535892-7-jeremy.linton@arm.com> (raw)
In-Reply-To: <20200522213059.1535892-1-jeremy.linton@arm.com>

Default initializing the phy_id to "invalid" allows
us to avoid setting it on the error returns.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
---
 drivers/net/phy/phy_device.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 360c3a72c498..b2cd22d6315c 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -742,6 +742,7 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
 	bool c22_present = false;
 	bool valid_id = false;
 
+	*phy_id = 0xffffffff;
 	/* Find first non-zero Devices In package. Device zero is reserved
 	 * for 802.3 c45 complied PHYs, We will ask it for a devices list,
 	 * but later we won't ask for identification from it.
@@ -762,10 +763,8 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
 	}
 
 	/* no reported devices */
-	if (!valid_phy_id(*devs)) {
-		*phy_id = 0xffffffff;
+	if (!valid_phy_id(*devs))
 		return 0;
-	}
 
 	/* Bit 0 doesn't represent a device, it indicates c22 regs presence */
 	c22_present = *devs & BIT(0);
@@ -783,10 +782,9 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr, u32 *phy_id,
 			valid_id = true;
 	}
 
-	if (!valid_id && c22_present) {
-		*phy_id = 0xffffffff;
+	if (!valid_id && c22_present)
 	        return 0;
-	}
+
 	*phy_id = 0;
 	return 0;
 }
-- 
2.26.2


  parent reply	other threads:[~2020-05-22 21:31 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-22 21:30 [RFC 00/11] Make C45 autoprobe more robust Jeremy Linton
2020-05-22 21:30 ` [RFC 01/11] net: phy: Don't report success if devices weren't found Jeremy Linton
2020-05-23 18:20   ` Russell King - ARM Linux admin
2020-05-25  2:46     ` Jeremy Linton
2020-05-25  9:45       ` Russell King - ARM Linux admin
2020-05-25 21:02         ` Jeremy Linton
2020-05-25 21:07           ` Russell King - ARM Linux admin
2020-05-25 21:59             ` Jeremy Linton
2020-05-22 21:30 ` [RFC 02/11] net: phy: Simplify MMD device list termination Jeremy Linton
2020-05-23 18:36   ` Russell King - ARM Linux admin
2020-05-25  2:48     ` Jeremy Linton
2020-05-25  8:09       ` Russell King - ARM Linux admin
2020-05-22 21:30 ` [RFC 03/11] net: phy: refactor c45 phy identification sequence Jeremy Linton
2020-05-23 15:28   ` Andrew Lunn
2020-05-23 17:16     ` Jeremy Linton
2020-05-23 17:32     ` Jeremy Linton
2020-05-23 19:12       ` Russell King - ARM Linux admin
2020-05-23 18:30   ` Russell King - ARM Linux admin
2020-05-23 19:51     ` Andrew Lunn
2020-05-23 20:01       ` Russell King - ARM Linux admin
2020-05-25  2:37         ` Jeremy Linton
2020-05-22 21:30 ` [RFC 04/11] net: phy: Handle c22 regs presence better Jeremy Linton
2020-05-23 18:37   ` Russell King - ARM Linux admin
2020-05-25  3:34     ` Jeremy Linton
2020-05-25  9:53       ` Russell King - ARM Linux admin
2020-05-25 10:06       ` Russell King - ARM Linux admin
2020-05-25 21:51         ` Jeremy Linton
2020-05-25 22:01           ` Russell King - ARM Linux admin
2020-05-25 22:22             ` Jeremy Linton
2020-05-25 23:09               ` Russell King - ARM Linux admin
2020-05-25 23:22                 ` Jeremy Linton
2020-05-25 23:33                   ` Russell King - ARM Linux admin
2020-05-25 23:42                     ` Jeremy Linton
2020-05-25 23:46                       ` Andrew Lunn
2020-05-25 23:57                       ` Russell King - ARM Linux admin
2020-05-25 23:16             ` Jeremy Linton
2020-05-25 23:30               ` Russell King - ARM Linux admin
2020-05-25 22:06           ` Andrew Lunn
2020-05-25 22:17             ` Jeremy Linton
2020-05-25 23:06               ` Andrew Lunn
2020-05-25 23:07               ` Russell King - ARM Linux admin
2020-05-25 23:12                 ` Andrew Lunn
2020-05-25 23:46                   ` Jeremy Linton
2020-05-25 23:47                     ` Andrew Lunn
2020-05-22 21:30 ` [RFC 05/11] net: phy: Scan the entire MMD device space Jeremy Linton
2020-05-22 21:30 ` Jeremy Linton [this message]
2020-05-22 21:30 ` [RFC 07/11] net: phy: reset invalid phy reads of 0 back to 0xffffffff Jeremy Linton
2020-05-23 18:44   ` Russell King - ARM Linux admin
2020-05-25  4:20     ` Jeremy Linton
2020-05-25  8:20       ` Russell King - ARM Linux admin
2020-05-22 21:30 ` [RFC 08/11] net: phy: Allow mdio buses to auto-probe c45 devices Jeremy Linton
2020-05-24 14:44   ` Andrew Lunn
2020-05-25  4:28     ` Jeremy Linton
2020-05-25  8:25       ` Russell King - ARM Linux admin
2020-05-25 13:43         ` Andrew Lunn
2020-05-25 22:09         ` Jeremy Linton
2020-05-25 22:41           ` Russell King - ARM Linux admin
2020-05-22 21:30 ` [RFC 09/11] net: phy: Refuse to consider phy_id=0 a valid phy Jeremy Linton
2020-05-22 21:30 ` [RFC 10/11] net: example acpize xgmac_mdio Jeremy Linton
2020-05-23 18:48   ` Russell King - ARM Linux admin
2020-05-22 21:30 ` [RFC 11/11] net: example xgmac enable extended scanning Jeremy Linton

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