From 27480a7c8f0274f8f2fc6c40e4522f38e52bd05f Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 18 Jun 2025 01:32:44 -0700 Subject: [PATCH] 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: Joe Damato Signed-off-by: Breno Leitao Link: https://patch.msgid.link/20250618-netdevsim_stat-v4-3-19fe0d35e28e@debian.org Signed-off-by: Jakub Kicinski --- include/linux/netdevice.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 9cbc4e54b7e4a..03c26bb0fbbef 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -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) { -- 2.47.2