workqueue: deprecate flush[_delayed]_work_sync()

flush[_delayed]_work_sync() are now spurious.  Mark them deprecated
and convert all users to flush[_delayed]_work().

If you're cc'd and wondering what's going on: Now all workqueues are
non-reentrant and the regular flushes guarantee that the work item is
not pending or running on any CPU on return, so there's no reason to
use the sync flushes at all and they're going away.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Mattia Dongili <malattia@linux.it>
Cc: Kent Yoder <key@linux.vnet.ibm.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-wireless@vger.kernel.org
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Petr Vandrovec <petr@vandrovec.name>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Avi Kivity <avi@redhat.com> 

2 files changed, 7 insertions, 7 deletions

diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index e1f4102..c6ea995 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -860,10 +860,10 @@ void hostap_free_data(struct ap_data *ap)
 		return;
 	}
 
-	flush_work_sync(&ap->add_sta_proc_queue);
+	flush_work(&ap->add_sta_proc_queue);
 
 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
-	flush_work_sync(&ap->wds_oper_queue);
+	flush_work(&ap->wds_oper_queue);
 	if (ap->crypt)
 		ap->crypt->deinit(ap->crypt_priv);
 	ap->crypt = ap->crypt_priv = NULL;
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index 50f87b6..8e7000f 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -3311,13 +3311,13 @@ static void prism2_free_local_data(struct net_device *dev)
 
 	unregister_netdev(local->dev);
 
-	flush_work_sync(&local->reset_queue);
-	flush_work_sync(&local->set_multicast_list_queue);
-	flush_work_sync(&local->set_tim_queue);
+	flush_work(&local->reset_queue);
+	flush_work(&local->set_multicast_list_queue);
+	flush_work(&local->set_tim_queue);
 #ifndef PRISM2_NO_STATION_MODES
-	flush_work_sync(&local->info_queue);
+	flush_work(&local->info_queue);
 #endif
-	flush_work_sync(&local->comms_qual_update);
+	flush_work(&local->comms_qual_update);
 
 	lib80211_crypt_info_free(&local->crypt_info);