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platform: add _support_user_ipv6ll_still_undecided() macro

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(cherry picked from commit a2d793f0e1)
This commit is contained in:
Thomas Haller 2015-05-11 12:52:36 +02:00
parent 521d80dd9d
commit 8d13e08cd3
1 changed files with 5 additions and 2 deletions
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7
src/platform/nm-linux-platform.c
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@ -306,13 +306,16 @@ _nl_sock_flush_data (struct nl_sock *sk)
#if HAVE_LIBNL_INET6_ADDR_GEN_MODE
static int _support_user_ipv6ll = 0;
#define _support_user_ipv6ll_still_undecided() (G_UNLIKELY (_support_user_ipv6ll == 0))
#else
#define _support_user_ipv6ll_still_undecided() (FALSE)
#endif
static gboolean
_support_user_ipv6ll_get (void)
{
#if HAVE_LIBNL_INET6_ADDR_GEN_MODE
if (G_UNLIKELY (_support_user_ipv6ll == 0)) {
if (_support_user_ipv6ll_still_undecided ()) {
_support_user_ipv6ll = -1;
nm_log_warn (LOGD_PLATFORM, "kernel support for IFLA_INET6_ADDR_GEN_MODE %s", "failed to detect; assume no support");
} else
@ -329,7 +332,7 @@ _support_user_ipv6ll_detect (const struct rtnl_link *rtnl_link)
/* If we ever see a link with valid IPv6 link-local address
* generation modes, the kernel supports it.
*/
if (G_UNLIKELY (_support_user_ipv6ll == 0)) {
if (_support_user_ipv6ll_still_undecided ()) {
uint8_t mode;
if (rtnl_link_inet6_get_addr_gen_mode ((struct rtnl_link *) rtnl_link, &mode) == 0) {