backports: provide backport for setup_deferrable_timer()

Since commit f8f118ceaa56 ("mac80211: Use setup_timer instead of
init_timer") mac80211 needs setup_deferrable_timer() which is not
available in older kernels. Provide a backport in linux/timer.h.
Really need two flavors of backport to support up to 3.0 kernel.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
1 file changed