git: 035e87247f84 - main - pfsync: remove invalid panic

The branch main has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=035e87247f845500b4672e10efb8f47fd2c0f2a2

commit 035e87247f845500b4672e10efb8f47fd2c0f2a2
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2026-06-06 13:44:17 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2026-06-08 07:44:56 +0000

    pfsync: remove invalid panic
    
    When we undefer a packet (when the peer acks the state) it's possible
    that we don't find a corresponding pfsync_deferral. We panic here, but
    that's actually something that can happen in normal operation:
     - if we have too many deferred packets already (in pfsync_defer())
     - if the deferral timed out (in pfsync_defer_tmo())
    
    Remove this panic and document the scenarios where it might occur.
    
    MFC after:      2 weeks
    Sponsored by:   Orange Business Services
---
 sys/netpfil/pf/if_pfsync.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/netpfil/pf/if_pfsync.c b/sys/netpfil/pf/if_pfsync.c
index a5f377e84307..a64d0ef64a61 100644
--- a/sys/netpfil/pf/if_pfsync.c
+++ b/sys/netpfil/pf/if_pfsync.c
@@ -2356,7 +2356,11 @@ pfsync_undefer_state_locked(struct pf_kstate *st, int drop)
 		}
 	}
 
-	panic("%s: unable to find deferred state", __func__);
+	/*
+	 * If we don't find this state in b_deferrals that might be because we
+	 * overflowed the list (see pfsync_defer()'s >= 128 check') or because
+	 * the deferral timed out already (see pfsync_defer_tomo()).
+	 */
 }
 
 static void