git: e0c2d7377548 - main - tcp rack: simplify expression

The branch main has been updated by tuexen:

URL: https://cgit.FreeBSD.org/src/commit/?id=e0c2d73775481b08c3fdc4b1bc68e22410035a39

commit e0c2d73775481b08c3fdc4b1bc68e22410035a39
Author:     Peter Lei <peterlei@netflix.com>
AuthorDate: 2025-06-26 14:08:23 +0000
Commit:     Michael Tuexen <tuexen@FreeBSD.org>
CommitDate: 2025-06-26 14:08:23 +0000

    tcp rack: simplify expression
    
    Reviewed by:    tuexen
    MFC after:      1 week
    Sponsored by:   Netflix, Inc.
---
 sys/netinet/tcp_stacks/rack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c
index aef05f691e1d..8e05498863b9 100644
--- a/sys/netinet/tcp_stacks/rack.c
+++ b/sys/netinet/tcp_stacks/rack.c
@@ -3489,7 +3489,7 @@ rack_free(struct tcp_rack *rack, struct rack_sendmap *rsm)
 		rack->r_ctl.rc_num_split_allocs--;
 	}
 	if (rsm == rack->r_ctl.rc_first_appl) {
-		rack->r_ctl.cleared_app_ack_seq = rsm->r_start + (rsm->r_end - rsm->r_start);
+		rack->r_ctl.cleared_app_ack_seq = rsm->r_end;
 		rack->r_ctl.cleared_app_ack = 1;
 		if (rack->r_ctl.rc_app_limited_cnt == 0)
 			rack->r_ctl.rc_first_appl = NULL;