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authorEric Dumazet <edumazet@google.com>2024-02-27 09:24:09 +0000
committerJakub Kicinski <kuba@kernel.org>2024-02-28 19:36:39 -0800
commit0598f8f3bb77893a13105d47bb7dfe42f1dc1f4e (patch)
tree46d9f5a898c8e044bbe5f1d8257e3a4311500827 /net/ipv4/proc.c
parente83ddcea65491efe29e12765996966509aa795d3 (diff)
inet: annotate devconf data-races
Add READ_ONCE() in ipv4_devconf_get() and corresponding WRITE_ONCE() in ipv4_devconf_set() Add IPV4_DEVCONF_RO() and IPV4_DEVCONF_ALL_RO() macros, and use them when reading devconf fields. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/20240227092411.2315725-2-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/proc.c')
-rw-r--r--net/ipv4/proc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 5f4654ebff48..914bc9c35cc7 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -395,7 +395,7 @@ static int snmp_seq_show_ipstats(struct seq_file *seq, void *v)
seq_printf(seq, " %s", snmp4_ipstats_list[i].name);
seq_printf(seq, "\nIp: %d %d",
- IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2,
+ IPV4_DEVCONF_ALL_RO(net, FORWARDING) ? 1 : 2,
READ_ONCE(net->ipv4.sysctl_ip_default_ttl));
BUILD_BUG_ON(offsetof(struct ipstats_mib, mibs) != 0);