[net-next PATCH v3 02/11] net: phy: introduce phy_interface_copy helper

[Christian Marangi <ansuelsmth@gmail.com>]

Introduce phy_interface_copy helper as a shorthand to copy the PHY
interface bitmap to a different location.

This is useful if a PHY interface bitmap needs to be stored in a
different variable and needs to be reset to an original value saved in a
different bitmap.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 include/linux/phy.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/phy.h b/include/linux/phy.h
index d62d292024bc..9f0e5fb30d63 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -173,6 +173,11 @@ static inline void phy_interface_or(unsigned long *dst, const unsigned long *a,
 	bitmap_or(dst, a, b, PHY_INTERFACE_MODE_MAX);
 }
 
+static inline void phy_interface_copy(unsigned long *dst, const unsigned long *src)
+{
+	bitmap_copy(dst, src, PHY_INTERFACE_MODE_MAX);
+}
+
 static inline void phy_interface_set_rgmii(unsigned long *intf)
 {
 	__set_bit(PHY_INTERFACE_MODE_RGMII, intf);
-- 
2.48.1