From: David Woodhouse Date: Mon, 10 Dec 2007 04:44:43 +0000 (-0500) Subject: libertas: refactor the 'should I sleep?' decision in lbs_thread() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b8d40bc9c9099943cbcf18d285bf241f1f080a44;p=linux-beck.git libertas: refactor the 'should I sleep?' decision in lbs_thread() This was making my brain hurt. Signed-off-by: David Woodhouse Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index e9c6b4ffd8e1..42b64b5ad083 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -722,6 +722,8 @@ static int lbs_thread(void *data) set_freezable(); for (;;) { + int shouldsleep; + lbs_deb_thread( "main-thread 111: intcounter=%d currenttxskb=%p dnld_sent=%d\n", priv->intcounter, priv->currenttxskb, priv->dnld_sent); @@ -729,8 +731,22 @@ static int lbs_thread(void *data) set_current_state(TASK_INTERRUPTIBLE); spin_lock_irq(&priv->driver_lock); - if ((priv->psstate == PS_STATE_SLEEP) || - (!priv->intcounter && (priv->dnld_sent || priv->cur_cmd || list_empty(&priv->cmdpendingq)))) { + if (priv->surpriseremoved) + shouldsleep = 0; /* Bye */ + else if (priv->psstate == PS_STATE_SLEEP) + shouldsleep = 1; /* Sleep mode. Nothing we can do till it wakes */ + else if (priv->intcounter) + shouldsleep = 0; /* Interrupt pending. Deal with it now */ + else if (priv->dnld_sent) + shouldsleep = 1; /* Something is en route to the device already */ + else if (priv->cur_cmd) + shouldsleep = 1; /* Can't send a command; one already running */ + else if (!list_empty(&priv->cmdpendingq)) + shouldsleep = 0; /* We have a command to send */ + else + shouldsleep = 1; /* No command */ + + if (shouldsleep) { lbs_deb_thread("main-thread sleeping... Conn=%d IntC=%d PS_mode=%d PS_State=%d\n", priv->connect_status, priv->intcounter, priv->psmode, priv->psstate);