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fe93f0b225
The two functions is_tcf_skbedit_mark() and is_tcf_skbedit_ptype() have a very similar structure. A follow-up patch will add one more such function. Instead of more cut'n'pasting, extract a helper function that checks whether a TC action is an skbedit with the required flag. Convert the two existing functions into thin wrappers around the helper. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
81 lines
1.6 KiB
C
81 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2008, Intel Corporation.
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*
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* Author: Alexander Duyck <alexander.h.duyck@intel.com>
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*/
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#ifndef __NET_TC_SKBEDIT_H
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#define __NET_TC_SKBEDIT_H
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#include <net/act_api.h>
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#include <linux/tc_act/tc_skbedit.h>
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struct tcf_skbedit_params {
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u32 flags;
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u32 priority;
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u32 mark;
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u32 mask;
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u16 queue_mapping;
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u16 ptype;
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struct rcu_head rcu;
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};
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struct tcf_skbedit {
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struct tc_action common;
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struct tcf_skbedit_params __rcu *params;
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};
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#define to_skbedit(a) ((struct tcf_skbedit *)a)
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/* Return true iff action is the one identified by FLAG. */
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static inline bool is_tcf_skbedit_with_flag(const struct tc_action *a, u32 flag)
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{
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#ifdef CONFIG_NET_CLS_ACT
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u32 flags;
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if (a->ops && a->ops->id == TCA_ID_SKBEDIT) {
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rcu_read_lock();
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flags = rcu_dereference(to_skbedit(a)->params)->flags;
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rcu_read_unlock();
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return flags == flag;
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}
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#endif
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return false;
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}
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/* Return true iff action is mark */
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static inline bool is_tcf_skbedit_mark(const struct tc_action *a)
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{
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return is_tcf_skbedit_with_flag(a, SKBEDIT_F_MARK);
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}
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static inline u32 tcf_skbedit_mark(const struct tc_action *a)
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{
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u32 mark;
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rcu_read_lock();
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mark = rcu_dereference(to_skbedit(a)->params)->mark;
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rcu_read_unlock();
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return mark;
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}
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/* Return true iff action is ptype */
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static inline bool is_tcf_skbedit_ptype(const struct tc_action *a)
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{
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return is_tcf_skbedit_with_flag(a, SKBEDIT_F_PTYPE);
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}
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static inline u32 tcf_skbedit_ptype(const struct tc_action *a)
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{
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u16 ptype;
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rcu_read_lock();
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ptype = rcu_dereference(to_skbedit(a)->params)->ptype;
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rcu_read_unlock();
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return ptype;
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}
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#endif /* __NET_TC_SKBEDIT_H */
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