Commit 27480a7c authored by Breno Leitao's avatar Breno Leitao Committed by Jakub Kicinski
Browse files

net: add dev_dstats_rx_dropped_add() helper 



Introduce the dev_dstats_rx_dropped_add() helper to allow incrementing
the rx_drops per-CPU statistic by an arbitrary value, rather than just
one. This is useful for drivers or code paths that need to account for
multiple dropped packets at once, such as when dropping entire queues.

Reviewed-by: default avatarJoe Damato <joe@dama.to>
Signed-off-by: default avatarBreno Leitao <leitao@debian.org>
Link: https://patch.msgid.link/20250618-netdevsim_stat-v4-3-19fe0d35e28e@debian.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 788eb4de

include/linux/netdevice.h

+10 −0
Original line number Diff line number Diff line
@@ -3016,6 +3016,16 @@ static inline void dev_dstats_rx_dropped(struct net_device *dev) 
	u64_stats_update_end(&dstats->syncp);

}



static inline void dev_dstats_rx_dropped_add(struct net_device *dev,

					     unsigned int packets)

{

	struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats);



	u64_stats_update_begin(&dstats->syncp);

	u64_stats_add(&dstats->rx_drops, packets);

	u64_stats_update_end(&dstats->syncp);

}



static inline void dev_dstats_tx_add(struct net_device *dev,

				     unsigned int len)

{