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| author | Eric Dumazet <edumazet@google.com> | 2019-11-07 16:27:22 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-07 20:03:08 -0800 |
| commit | fd2f4737870eb866537fbbffa2b59414b9b0c0a2 (patch) | |
| tree | 1a717aaeccccc9d8ff8f923dc9ac4f0d840655cd /drivers/net/loopback.c | |
| parent | 5260dd3ed1ff7eba39251b28977e4d8950e2f099 (diff) | |
| download | linux-fd2f4737870eb866537fbbffa2b59414b9b0c0a2.tar.gz linux-fd2f4737870eb866537fbbffa2b59414b9b0c0a2.tar.bz2 linux-fd2f4737870eb866537fbbffa2b59414b9b0c0a2.zip | |
net: use u64_stats_t in struct pcpu_lstats
In order to fix the data-race found by KCSAN, we
can use the new u64_stats_t type and its accessors instead
of plain u64 fields. This will still generate optimal code
for both 32 and 64 bit platforms.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/loopback.c')
| -rw-r--r-- | drivers/net/loopback.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c index 47ad2478b9f3..a1c77cc00416 100644 --- a/drivers/net/loopback.c +++ b/drivers/net/loopback.c @@ -106,8 +106,8 @@ void dev_lstats_read(struct net_device *dev, u64 *packets, u64 *bytes) lb_stats = per_cpu_ptr(dev->lstats, i); do { start = u64_stats_fetch_begin_irq(&lb_stats->syncp); - tpackets = lb_stats->packets; - tbytes = lb_stats->bytes; + tpackets = u64_stats_read(&lb_stats->packets); + tbytes = u64_stats_read(&lb_stats->bytes); } while (u64_stats_fetch_retry_irq(&lb_stats->syncp, start)); *bytes += tbytes; *packets += tpackets; |