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network: ndisc: read prefix earlier
No functional changes.
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@ -408,6 +408,7 @@ static int ndisc_router_process_onlink_prefix(Link *link, sd_ndisc_router *rt) {
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_cleanup_(route_freep) Route *route = NULL;
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usec_t timestamp_usec;
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uint32_t lifetime_sec;
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struct in6_addr prefix;
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unsigned prefixlen;
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int r;
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@ -429,6 +430,10 @@ static int ndisc_router_process_onlink_prefix(Link *link, sd_ndisc_router *rt) {
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if (r < 0)
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return log_link_error_errno(link, r, "Failed to get RA timestamp: %m");
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r = sd_ndisc_router_prefix_get_address(rt, &prefix);
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if (r < 0)
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return log_link_error_errno(link, r, "Failed to get prefix address: %m");
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r = sd_ndisc_router_prefix_get_prefixlen(rt, &prefixlen);
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if (r < 0)
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return log_link_error_errno(link, r, "Failed to get prefix length: %m");
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@ -439,13 +444,10 @@ static int ndisc_router_process_onlink_prefix(Link *link, sd_ndisc_router *rt) {
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route->family = AF_INET6;
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route->flags = RTM_F_PREFIX;
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route->dst.in6 = prefix;
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route->dst_prefixlen = prefixlen;
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route->lifetime_usec = sec_to_usec(lifetime_sec, timestamp_usec);
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r = sd_ndisc_router_prefix_get_address(rt, &route->dst.in6);
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if (r < 0)
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return log_link_error_errno(link, r, "Failed to get prefix address: %m");
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r = ndisc_request_route(TAKE_PTR(route), link, rt);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not request prefix route: %m");
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