Only update filter if the value is different.

erfrimod · erfrimod · commit 2e331f7eeaec · 2025-08-25T12:28:20.000-07:00
diff --git a/vm/devices/net/netvsp/src/lib.rs b/vm/devices/net/netvsp/src/lib.rs
@@ -2819,8 +2819,10 @@ impl<T: RingMem> NetChannel<T> {
                             self.restart = Some(CoordinatorMessage::Restart);
                         }
                         if let Some(filter) = packet_filter {
-                            self.packet_filter = filter;
-                            self.send_coordinator_update_filter();
+                            if self.packet_filter != filter {
+                                self.packet_filter = filter;
+                                self.send_coordinator_update_filter();
+                            }
                         }
                         rndisprot::STATUS_SUCCESS
                     }

Original file line number	Diff line number	Diff line change
`@@ -2819,8 +2819,10 @@ impl<T: RingMem> NetChannel<T> {`
`2819`	`2819`	`self.restart = Some(CoordinatorMessage::Restart);`
`2820`	`2820`	`}`
`2821`	`2821`	`if let Some(filter) = packet_filter {`
`2822`		`- self.packet_filter = filter;`
`2823`		`- self.send_coordinator_update_filter();`
	`2822`	`+ if self.packet_filter != filter {`
	`2823`	`+ self.packet_filter = filter;`
	`2824`	`+ self.send_coordinator_update_filter();`
	`2825`	`+ }`
`2824`	`2826`	`}`
`2825`	`2827`	`rndisprot::STATUS_SUCCESS`
`2826`	`2828`	`}`