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| author | Jiri Pirko <jiri@resnulli.us> | 2013-06-10 17:42:25 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-12 03:06:16 -0700 |
| commit | 735d381fa57c573935d35a24ea271ec99897ac63 (patch) | |
| tree | e1118f79060396214ac150339eaa6a3a1c7c2168 /include/linux | |
| parent | d80b35beac78b52faad2359adf6a6b14e2725e51 (diff) | |
| download | linux-735d381fa57c573935d35a24ea271ec99897ac63.tar.gz linux-735d381fa57c573935d35a24ea271ec99897ac63.tar.bz2 linux-735d381fa57c573935d35a24ea271ec99897ac63.zip | |
team: remove synchronize_rcu() called during port disable
Check the unlikely case of team->en_port_count == 0 before modulo
operation.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/if_team.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/if_team.h b/include/linux/if_team.h index 705459524706..b662045a81c0 100644 --- a/include/linux/if_team.h +++ b/include/linux/if_team.h @@ -229,6 +229,16 @@ static inline struct team_port *team_get_port_by_index(struct team *team, return port; return NULL; } + +static inline int team_num_to_port_index(struct team *team, int num) +{ + int en_port_count = ACCESS_ONCE(team->en_port_count); + + if (unlikely(!en_port_count)) + return 0; + return num % en_port_count; +} + static inline struct team_port *team_get_port_by_index_rcu(struct team *team, int port_index) { |