From c48730056f69db30c075236f4ee2bc9d3f4f9985 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 26 Jan 2011 12:12:50 +0100 Subject: arm/omap: use system_wq in mailbox With cmwq, there's no reason to use a separate workqueue for mailbox. Use the system_wq instead. mbox->rxq->work is sync flushed in omap_mbox_fini() to make sure it's not running on any cpu, which makes sure that no mbox work is running when omap_mbox_exit() is entered. Signed-off-by: Tejun Heo Acked-by: Hari Kanigeri Cc: Tony Lindgren Cc: linux-omap@vger.kernel.org --- arch/arm/plat-omap/mailbox.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c index 459b319a9fa..4c9d44c4db4 100644 --- a/arch/arm/plat-omap/mailbox.c +++ b/arch/arm/plat-omap/mailbox.c @@ -32,7 +32,6 @@ #include -static struct workqueue_struct *mboxd; static struct omap_mbox **mboxes; static int mbox_configured; @@ -197,7 +196,7 @@ static void __mbox_rx_interrupt(struct omap_mbox *mbox) /* no more messages in the fifo. clear IRQ source. */ ack_mbox_irq(mbox, IRQ_RX); nomem: - queue_work(mboxd, &mbox->rxq->work); + schedule_work(&mbox->rxq->work); } static irqreturn_t mbox_interrupt(int irq, void *p) @@ -307,7 +306,7 @@ static void omap_mbox_fini(struct omap_mbox *mbox) if (!--mbox->use_count) { free_irq(mbox->irq, mbox); tasklet_kill(&mbox->txq->tasklet); - flush_work(&mbox->rxq->work); + flush_work_sync(&mbox->rxq->work); mbox_queue_free(mbox->txq); mbox_queue_free(mbox->rxq); } @@ -406,10 +405,6 @@ static int __init omap_mbox_init(void) if (err) return err; - mboxd = create_workqueue("mboxd"); - if (!mboxd) - return -ENOMEM; - /* kfifo size sanity check: alignment and minimal size */ mbox_kfifo_size = ALIGN(mbox_kfifo_size, sizeof(mbox_msg_t)); mbox_kfifo_size = max_t(unsigned int, mbox_kfifo_size, @@ -421,7 +416,6 @@ subsys_initcall(omap_mbox_init); static void __exit omap_mbox_exit(void) { - destroy_workqueue(mboxd); class_unregister(&omap_mbox_class); } module_exit(omap_mbox_exit); -- cgit v1.2.3-70-g09d2