git: 3883300afe0b - main - cxgbe/t4_tom: Do not set unresolved entries to STALE in t4_l2t_update.

The branch main has been updated by np:

URL: https://cgit.FreeBSD.org/src/commit/?id=3883300afe0bff5c5658274c4d8cfe773d08343e

commit 3883300afe0bff5c5658274c4d8cfe773d08343e
Author:     Navdeep Parhar <np@FreeBSD.org>
AuthorDate: 2024-09-24 14:35:09 +0000
Commit:     Navdeep Parhar <np@FreeBSD.org>
CommitDate: 2024-09-24 15:53:11 +0000

    cxgbe/t4_tom: Do not set unresolved entries to STALE in t4_l2t_update.
    
    An L2 entry in the driver's hash was marked STALE unconditionally if it
    changed in the kernel when its driver refcount is 0.  Fix the driver to
    do this for VALID entries only.
    
    MFC after:      1 week
    Sponsored by:   Chelsio Communications
---
 sys/dev/cxgbe/tom/t4_tom_l2t.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/dev/cxgbe/tom/t4_tom_l2t.c b/sys/dev/cxgbe/tom/t4_tom_l2t.c
index be42a887323f..8cc3e633444a 100644
--- a/sys/dev/cxgbe/tom/t4_tom_l2t.c
+++ b/sys/dev/cxgbe/tom/t4_tom_l2t.c
@@ -441,7 +441,8 @@ t4_l2_update(struct toedev *tod, if_t ifp, struct sockaddr *sa,
 			mtx_lock(&e->lock);
 			if (atomic_load_acq_int(&e->refcnt))
 				goto found;
-			e->state = L2T_STATE_STALE;
+			if (e->state == L2T_STATE_VALID)
+				e->state = L2T_STATE_STALE;
 			mtx_unlock(&e->lock);
 			break;
 		}