diff options
| -rw-r--r-- | include/uapi/linux/pkt_cls.h | 15 | ||||
| -rw-r--r-- | net/sched/act_api.c | 2 |
2 files changed, 15 insertions, 2 deletions
diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h index f1129e383b2a..d613be3b3239 100644 --- a/include/uapi/linux/pkt_cls.h +++ b/include/uapi/linux/pkt_cls.h @@ -37,7 +37,20 @@ enum { #define TC_ACT_QUEUED 5 #define TC_ACT_REPEAT 6 #define TC_ACT_REDIRECT 7 -#define TC_ACT_JUMP 0x10000000 + +/* There is a special kind of actions called "extended actions", + * which need a value parameter. These have a local opcode located in + * the highest nibble, starting from 1. The rest of the bits + * are used to carry the value. These two parts together make + * a combined opcode. + */ +#define __TC_ACT_EXT_SHIFT 28 +#define __TC_ACT_EXT(local) ((local) << __TC_ACT_EXT_SHIFT) +#define TC_ACT_EXT_VAL_MASK ((1 << __TC_ACT_EXT_SHIFT) - 1) +#define TC_ACT_EXT_CMP(combined, opcode) \ + (((combined) & (~TC_ACT_EXT_VAL_MASK)) == opcode) + +#define TC_ACT_JUMP __TC_ACT_EXT(1) /* Action type identifiers*/ enum { diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 7f2cd702bb27..a90e8f355c00 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -453,7 +453,7 @@ repeat: if (ret == TC_ACT_REPEAT) goto repeat; /* we need a ttl - JHS */ - if (ret & TC_ACT_JUMP) { + if (TC_ACT_EXT_CMP(ret, TC_ACT_JUMP)) { jmp_prgcnt = ret & TCA_ACT_MAX_PRIO_MASK; if (!jmp_prgcnt || (jmp_prgcnt > nr_actions)) { /* faulty opcode, stop pipeline */ |