ipv6: addrconf: reduce default temp_valid_lft to 2 days

This is a recommendation from RFC 8981 and it was intended to be changed
by commit 969c54646af0 ("ipv6: Implement draft-ietf-6man-rfc4941bis")
but it only changed the sysctl documentation.

Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260214172543.5783-1-fmancera@suse.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 78e8b877fb257cdd3ba760d047c0c647dba8bc4a..9e96776945e5f67f2bf2293c24975e6d6064aeda 100644 (file)
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -8,7 +8,8 @@
 
 #define MIN_VALID_LIFETIME             (2*3600)        /* 2 hours */
 
-#define TEMP_VALID_LIFETIME            (7*86400)       /* 1 week */
+/* TEMP_VALID_LIFETIME default value as specified in RFC 8981 3.8 */
+#define TEMP_VALID_LIFETIME            (2*86400)       /* 2 days */
 #define TEMP_PREFERRED_LIFETIME                (86400)         /* 24 hours */
 #define REGEN_MIN_ADVANCE              (2)             /* 2 seconds */
 #define REGEN_MAX_RETRY                        (3)