Merge pull request #185 from chaudron/fix/adv03

tohojo · web-flow · commit 28c13e07ed07 · 2021-01-06T17:43:50.000+01:00
advanced03: fix decreasing of outstanding_tx variable
diff --git a/advanced03-AF_XDP/af_xdp_user.c b/advanced03-AF_XDP/af_xdp_user.c
@@ -249,6 +249,8 @@ static void complete_tx(struct xsk_socket_info *xsk)
 								      idx_cq++));
 
 		xsk_ring_cons__release(&xsk->umem->cq, completed);
+		xsk->outstanding_tx -= completed < xsk->outstanding_tx ?
+			completed : xsk->outstanding_tx;
 	}
 }
 

Original file line number	Diff line number	Diff line change
`@@ -249,6 +249,8 @@ static void complete_tx(struct xsk_socket_info *xsk)`
`249`	`249`	`idx_cq++));`
`250`	`250`
`251`	`251`	`xsk_ring_cons__release(&xsk->umem->cq, completed);`
	`252`	`+ xsk->outstanding_tx -= completed < xsk->outstanding_tx ?`
	`253`	`+ completed : xsk->outstanding_tx;`
`252`	`254`	`}`
`253`	`255`	`}`
`254`	`256`