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ipv6: add inet6_rt_del_notify()

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Move the body of inet6_rt_notify() to __inet6_rt_notify() and give it
the deletion reason. inet6_rt_notify() keeps its prototype, so the
route addition path does not change.

Add inet6_rt_del_notify() and call it from fib6_del_route().
RTA_DEL_REASON now reaches user space on RTM_DELROUTE for routes the
kernel deleted on its own.

Signed-off-by: Yuyang Huang <sigefriedhyy@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260808005642.26901-7-sigefriedhyy@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Yuyang Huang
2026-08-08 09:56:38 +09:00
committed by Paolo Abeni
parent 1e6a83af59
commit 09f19ce3de
3 changed files with 19 additions and 5 deletions
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2
include/net/ip6_fib.h
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@@ -533,6 +533,8 @@ static inline void fib6_rt_update(struct net *net, struct fib6_info *rt,
#endif
void inet6_rt_notify(int event, struct fib6_info *rt, struct nl_info *info,
unsigned int flags);
void inet6_rt_del_notify(struct fib6_info *rt, struct nl_info *info,
enum rt_del_reason del_reason);
void fib6_age_exceptions(struct fib6_info *rt, struct fib6_gc_args *gc_args,
unsigned long now);