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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>

authored by

Fernando Fernandez Mancera and committed by
Jakub Kicinski 9e371b0b ad5dfde2

+2 -1
+2 -1
include/net/addrconf.h
··· 8 8 9 9 #define MIN_VALID_LIFETIME (2*3600) /* 2 hours */ 10 10 11 - #define TEMP_VALID_LIFETIME (7*86400) /* 1 week */ 11 + /* TEMP_VALID_LIFETIME default value as specified in RFC 8981 3.8 */ 12 + #define TEMP_VALID_LIFETIME (2*86400) /* 2 days */ 12 13 #define TEMP_PREFERRED_LIFETIME (86400) /* 24 hours */ 13 14 #define REGEN_MIN_ADVANCE (2) /* 2 seconds */ 14 15 #define REGEN_MAX_RETRY (3)