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platform: minor cleanup of nm_platform_ip6_address_sync()

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Drop the "delete_remaining" variable, and instead rely on the value of "i_know"
alone. Also, add a code comment explaining better what is happening.
This commit is contained in:
Thomas Haller 2018-04-10 14:05:18 +02:00
parent b50d7cc653
commit 43dee5f192
1 changed files with 15 additions and 14 deletions
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29
src/platform/nm-platform.c
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@ -3641,7 +3641,6 @@ nm_platform_ip6_address_sync (NMPlatform *self,
NULL, NULL);
if (plat_addresses) {
gboolean delete_remaining;
guint known_addresses_len;
known_addresses_len = known_addresses ? known_addresses->len : 0;
@ -3702,28 +3701,30 @@ clear_and_next:
* right order to get their priority right. */
i_plat = plat_addresses->len;
i_know = 0;
delete_remaining = FALSE;
while (i_plat > 0) {
const NMPlatformIP6Address *plat_addr = NMP_OBJECT_CAST_IP6_ADDRESS (plat_addresses->pdata[--i_plat]);
if (!plat_addr)
continue;
if (!delete_remaining) {
for (; i_know < known_addresses_len; i_know++) {
const NMPlatformIP6Address *know_addr = NMP_OBJECT_CAST_IP6_ADDRESS (known_addresses->pdata[i_know]);
for (; i_know < known_addresses_len; i_know++) {
const NMPlatformIP6Address *know_addr = NMP_OBJECT_CAST_IP6_ADDRESS (known_addresses->pdata[i_know]);
if (!know_addr)
continue;
if (!know_addr)
continue;
if (IN6_ARE_ADDR_EQUAL (&plat_addr->address, &know_addr->address)) {
/* we have a match. Mark address as handled. */
i_know++;
goto next_plat;
}
break;
if (IN6_ARE_ADDR_EQUAL (&plat_addr->address, &know_addr->address)) {
/* we have a match. Mark address as handled. */
i_know++;
goto next_plat;
}
delete_remaining = TRUE;
/* all remainging addresses need to be removed as well, so that we can
* re-add them in the correct order. Signal that, by setting @i_know
* so that the next @i_plat iteration, we won't enter the loop and
* delete the address right away */
i_know = known_addresses_len;
break;
}
nm_platform_ip6_address_delete (self, ifindex, plat_addr->address, plat_addr->plen);