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net: add DEV_STATS_READ() helper
[ Upstream commit0b068c714c
] Companion of DEV_STATS_INC() & DEV_STATS_ADD(). This is going to be used in the series. Use it in macsec_get_stats64(). Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Stable-dep-of:ff672b9ffe
("ipvlan: properly track tx_errors") Signed-off-by: Sasha Levin <sashal@kernel.org>
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2 changed files with 4 additions and 3 deletions
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@ -3664,9 +3664,9 @@ static void macsec_get_stats64(struct net_device *dev,
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dev_fetch_sw_netstats(s, dev->tstats);
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s->rx_dropped = atomic_long_read(&dev->stats.__rx_dropped);
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s->tx_dropped = atomic_long_read(&dev->stats.__tx_dropped);
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s->rx_errors = atomic_long_read(&dev->stats.__rx_errors);
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s->rx_dropped = DEV_STATS_READ(dev, rx_dropped);
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s->tx_dropped = DEV_STATS_READ(dev, tx_dropped);
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s->rx_errors = DEV_STATS_READ(dev, rx_errors);
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}
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static int macsec_get_iflink(const struct net_device *dev)
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@ -5190,5 +5190,6 @@ extern struct net_device *blackhole_netdev;
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#define DEV_STATS_INC(DEV, FIELD) atomic_long_inc(&(DEV)->stats.__##FIELD)
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#define DEV_STATS_ADD(DEV, FIELD, VAL) \
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atomic_long_add((VAL), &(DEV)->stats.__##FIELD)
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#define DEV_STATS_READ(DEV, FIELD) atomic_long_read(&(DEV)->stats.__##FIELD)
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#endif /* _LINUX_NETDEVICE_H */
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