[riot-notifications] [RIOT-OS/RIOT] gnrc_ipv6_nib: auto-configure downstream subnets (#16536)

Martine Lenders notifications at github.com
Wed Aug 4 15:10:42 CEST 2021

@miri64 commented on this pull request.

> +        /* create subnet by adding interface index */
+        new_prefix.u64[0].u64 = byteorder_ntohll(prefix->u64[0]);
+        new_prefix.u64[0].u64 |= (uint64_t)subnets-- << (63 - prefix_len);

Maybe having a function to calculate said subnet index might make things clearer, otherwise some better explanation in the comment would be appreciated.

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