[PATCH net-next v2 2/5] net: xilinx: axienet: Fix dangling multicast addresses
Jakub Kicinski
kuba at kernel.org
Mon Aug 19 18:33:02 PDT 2024
On Thu, 15 Aug 2024 15:36:11 -0400 Sean Anderson wrote:
> If a multicast address is removed but there are still some multicast
> addresses, that address would remain programmed into the frame filter.
> Fix this by explicitly setting the enable bit for each filter.
>
> Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
> Signed-off-by: Sean Anderson <sean.anderson at linux.dev>
> Reviewed-by: Simon Horman <horms at kernel.org>
Again, I'd go for net.
> diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
> index 0d5b300107e0..03fef656478e 100644
> --- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
> +++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
> @@ -170,6 +170,7 @@
> #define XAE_UAW0_OFFSET 0x00000700 /* Unicast address word 0 */
> #define XAE_UAW1_OFFSET 0x00000704 /* Unicast address word 1 */
> #define XAE_FMI_OFFSET 0x00000708 /* Filter Mask Index */
> +#define XAE_FFE_OFFSET 0x0000070C /* Frame Filter Enable */
> #define XAE_AF0_OFFSET 0x00000710 /* Address Filter 0 */
> #define XAE_AF1_OFFSET 0x00000714 /* Address Filter 1 */
There is a conflict with current net / net-next here, because of
9ff2f816e2aa65ca9, you'll need to rebase / repost (which is why
I'm allowing myself the nit picks ;))
> diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> index e664611c29cf..1bcabb016ca9 100644
> --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
> @@ -433,7 +433,7 @@ static int netdev_set_mac_address(struct net_device *ndev, void *p)
> */
> static void axienet_set_multicast_list(struct net_device *ndev)
> {
> - int i;
> + int i = 0;
Consider renaming i to addr_cnt ? or addr_num ?
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