Thread (11 messages) flat view 11 messages, 4 authors, 2016-02-17

Re: [PATCH v2 3/5] net: phy: dp83848: Reorganize code for readability and safety

From: Sergei Shtylyov <hidden>
Date: 2016-02-07 18:14:02
Also in: lkml

Hello.

On 02/07/2016 08:47 PM, Andrew F. Davis wrote:
quoted hunk ↗ jump to hunk
Reorganize code by moving the desired interrupt mask definition
out of function. Also rearrange the enable/disable interrupt function
to prevent accidental over-writing of values in registers.

Signed-off-by: Andrew F. Davis <redacted>
---
  drivers/net/phy/dp83848.c | 33 ++++++++++++++++++++-------------
  1 file changed, 20 insertions(+), 13 deletions(-)
diff --git a/drivers/net/phy/dp83848.c b/drivers/net/phy/dp83848.c
index d4686d5f..20d3b9d 100644
--- a/drivers/net/phy/dp83848.c
+++ b/drivers/net/phy/dp83848.c
[...]
quoted hunk ↗ jump to hunk
@@ -46,23 +52,24 @@ static int dp83848_ack_interrupt(struct phy_device *phydev)

  static int dp83848_config_intr(struct phy_device *phydev)
  {
-	int err;
+	int control, ret;
+
+	control = phy_read(phydev, DP83848_MICR);
+	if (control < 0)
+		return control;

  	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
-		err = phy_write(phydev, DP83848_MICR,
-				DP83848_MICR_INT_OE |
-				DP83848_MICR_INTEN);
-		if (err < 0)
-			return err;
-
-		return phy_write(phydev, DP83848_MISR,
-				 DP83848_MISR_ANC_INT_EN |
-				 DP83848_MISR_DUP_INT_EN |
-				 DP83848_MISR_SPD_INT_EN |
-				 DP83848_MISR_LINK_INT_EN);
+		control |= DP83848_MICR_INT_OE;
+		control |= DP83848_MICR_INTEN;
    I'd have written this on a single line.

[...]

MBR, Sergei
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