On Tue, Feb 24, 2026 at 11:43:59PM +0530, Chintan Vankar wrote:

In the current implementation, flushing multicast entries in MAC mode
incorrectly deletes entries for all ports instead of only the target port,
disrupting multicast traffic on other ports. The cause is adding multicast
entries by setting only host port bit, and not setting the MAC port bits.

Fix this by setting the MAC port's bit in the port mask while adding the
multicast entry. Also fix the flush logic to preserve the host port bit
during removal of MAC port and free ALE entries when mask contains only
host port.

Fixes: 5c50a856d550 ("drivers: net: ethernet: cpsw: add multicast address to ALE table")
Signed-off-by: Chintan Vankar <redacted>
---

This patch is based on commit 'd4f687fbbce4' of origin/main branch of
Linux net repo.

Link to v1:
https://lore.kernel.org/r/20260205070951.3170631-1-c-vankar@ti.com/ (local)

Changes from v1 to v2:
- Squashed two patches into one as a fix of the older implementation.
- Added "Fixes" tag in the commit.

Reviewed-by: Simon Horman <horms@kernel.org>

...