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

On 5/11/25 16:12, Christian Marangi wrote:
> 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);

Reviewed-by: Sean Anderson <sean.anderson@linux.dev>