net: phy: constify phydev->drv

Device driver structures are shared between all devices that they
match, and thus nothing should never write to the device driver
structure through the phydev->drv pointer. Let's make this pointer
const to catch code that attempts to do so.

Suggested-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/phy.h b/include/linux/phy.h
index 684efaeca07c..d341e0a055ba 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -638,7 +638,7 @@ struct phy_device {
 
 	/* Information about the PHY type */
 	/* And management functions */
-	struct phy_driver *drv;
+	const struct phy_driver *drv;
 
 	struct device_link *devlink;