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tools headers UAPI: Sync linux/rtnetlink.h with the kernel sources

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To pick up the changes in:

  cc17e386f8 ("ipv6: add ip6_del_rt_reason()")

That just rebuilds perf, silencing this build warning.

This addresses this perf build warning:

  Warning: Kernel ABI header differences:
    diff -u tools/include/uapi/linux/rtnetlink.h include/uapi/linux/rtnetlink.h

Please see tools/include/uapi/README for further details.

Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Yuyang Huang <sigefriedhyy@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2026-10-22 12:04:24 -03:00
parent fb5c7c75e8
commit 2405406fb2
1 changed files with 25 additions and 0 deletions
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25
tools/include/uapi/linux/rtnetlink.h
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@ -399,6 +399,7 @@ enum rtattr_type_t {
RTA_DPORT,
RTA_NH_ID,
RTA_FLOWLABEL,
RTA_DEL_REASON,
__RTA_MAX
};
@ -407,6 +408,30 @@ enum rtattr_type_t {
#define RTM_RTA(r) ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtmsg))))
#define RTM_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtmsg))
/* RTA_DEL_REASON: why the kernel deleted the route. u32.
* Emitted only on RTM_DELROUTE notifications, and only when the deletion
* path records a cause. Absence means either an older kernel or a
* deletion path that does not (yet) record its cause - consumers must
* treat "absent" and "unspec" identically. New causes may be appended.
* Currently only IPv6 deletion paths record a cause.
*
* The attribute is notification-only: the kernel rejects it in
* requests, so a notification must not be echoed back verbatim.
*
* The value space is family-agnostic: a value must never be
* reinterpreted per address family. A cause that only one family can
* produce still gets its own value rather than reusing another
* family's.
*/
enum rt_del_reason {
RT_DEL_REASON_UNSPEC, /* cause not recorded */
RT_DEL_REASON_EXPIRED, /* RTF_EXPIRES lifetime ran out (GC) */
RT_DEL_REASON_RA_WITHDRAWN, /* zero-lifetime RA / PIO / RIO */
__RT_DEL_REASON_MAX
};
#define RT_DEL_REASON_MAX (__RT_DEL_REASON_MAX - 1)
/* RTM_MULTIPATH --- array of struct rtnexthop.
*
* "struct rtnexthop" describes all necessary nexthop information,