diff options
| author | Jiri Pirko <jiri@mellanox.com> | 2020-03-28 16:37:42 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-30 11:06:49 -0700 |
| commit | 8953b0770ff4e3038a6d4df3cc021f9bfb47548a (patch) | |
| tree | 3a99e78f5accc546792f7b5e89637eb94bd26c1a | |
| parent | acc086bfb957542be49a8165eb794bc74f6cb51b (diff) | |
net: introduce nla_put_bitfield32() helper and use it
Introduce a helper to pass value and selector to. The helper packs them
into struct and puts them into netlink message.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/netlink.h | 15 | ||||
| -rw-r--r-- | net/sched/act_api.c | 24 | ||||
| -rw-r--r-- | net/sched/sch_red.c | 7 |
3 files changed, 25 insertions, 21 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h index 56c365dc6dc7..67c57d6942e3 100644 --- a/include/net/netlink.h +++ b/include/net/netlink.h @@ -1466,6 +1466,21 @@ static inline int nla_put_in6_addr(struct sk_buff *skb, int attrtype, } /** + * nla_put_bitfield32 - Add a bitfield32 netlink attribute to a socket buffer + * @skb: socket buffer to add attribute to + * @attrtype: attribute type + * @value: value carrying bits + * @selector: selector of valid bits + */ +static inline int nla_put_bitfield32(struct sk_buff *skb, int attrtype, + __u32 value, __u32 selector) +{ + struct nla_bitfield32 tmp = { value, selector, }; + + return nla_put(skb, attrtype, sizeof(tmp), &tmp); +} + +/** * nla_get_u32 - return payload of u32 attribute * @nla: u32 netlink attribute */ diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 861a831b0ef7..33cc77e6e56c 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -789,23 +789,15 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref) } rcu_read_unlock(); - if (a->hw_stats != TCA_ACT_HW_STATS_ANY) { - struct nla_bitfield32 hw_stats = { - a->hw_stats, - TCA_ACT_HW_STATS_ANY, - }; - - if (nla_put(skb, TCA_ACT_HW_STATS, sizeof(hw_stats), &hw_stats)) - goto nla_put_failure; - } - - if (a->tcfa_flags) { - struct nla_bitfield32 flags = { a->tcfa_flags, - a->tcfa_flags, }; + if (a->hw_stats != TCA_ACT_HW_STATS_ANY && + nla_put_bitfield32(skb, TCA_ACT_HW_STATS, + a->hw_stats, TCA_ACT_HW_STATS_ANY)) + goto nla_put_failure; - if (nla_put(skb, TCA_ACT_FLAGS, sizeof(flags), &flags)) - goto nla_put_failure; - } + if (a->tcfa_flags && + nla_put_bitfield32(skb, TCA_ACT_FLAGS, + a->tcfa_flags, a->tcfa_flags)) + goto nla_put_failure; nest = nla_nest_start_noflag(skb, TCA_OPTIONS); if (nest == NULL) diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index 3ef0a4f7399b..c7de47c942e3 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -349,10 +349,6 @@ static int red_dump_offload_stats(struct Qdisc *sch) static int red_dump(struct Qdisc *sch, struct sk_buff *skb) { struct red_sched_data *q = qdisc_priv(sch); - struct nla_bitfield32 flags_bf = { - .selector = red_supported_flags, - .value = q->flags, - }; struct nlattr *opts = NULL; struct tc_red_qopt opt = { .limit = q->limit, @@ -375,7 +371,8 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb) goto nla_put_failure; if (nla_put(skb, TCA_RED_PARMS, sizeof(opt), &opt) || nla_put_u32(skb, TCA_RED_MAX_P, q->parms.max_P) || - nla_put(skb, TCA_RED_FLAGS, sizeof(flags_bf), &flags_bf)) + nla_put_bitfield32(skb, TCA_RED_FLAGS, + q->flags, red_supported_flags)) goto nla_put_failure; return nla_nest_end(skb, opts); |