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path: root/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
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Diffstat (limited to 'drivers/staging/brcm80211/brcmfmac/dhd_linux.c')
-rw-r--r--drivers/staging/brcm80211/brcmfmac/dhd_linux.c58
1 files changed, 0 insertions, 58 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
index 0d86819..07ceaf9 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
@@ -143,64 +143,6 @@ static int brcmf_host_event(struct brcmf_info *drvr_priv, int *ifidx, void *pktd
struct brcmf_event_msg *event_ptr,
void **data_ptr);
-/*
- * Generalized timeout mechanism. Uses spin sleep with exponential
- * back-off until
- * the sleep time reaches one jiffy, then switches over to task delay. Usage:
- *
- * brcmf_timeout_start(&tmo, usec);
- * while (!brcmf_timeout_expired(&tmo))
- * if (poll_something())
- * break;
- * if (brcmf_timeout_expired(&tmo))
- * fatal();
- */
-
-void brcmf_timeout_start(struct brcmf_timeout *tmo, uint usec)
-{
- tmo->limit = usec;
- tmo->increment = 0;
- tmo->elapsed = 0;
- tmo->tick = 1000000 / HZ;
-}
-
-int brcmf_timeout_expired(struct brcmf_timeout *tmo)
-{
- /* Does nothing the first call */
- if (tmo->increment == 0) {
- tmo->increment = 1;
- return 0;
- }
-
- if (tmo->elapsed >= tmo->limit)
- return 1;
-
- /* Add the delay that's about to take place */
- tmo->elapsed += tmo->increment;
-
- if (tmo->increment < tmo->tick) {
- udelay(tmo->increment);
- tmo->increment *= 2;
- if (tmo->increment > tmo->tick)
- tmo->increment = tmo->tick;
- } else {
- wait_queue_head_t delay_wait;
- DECLARE_WAITQUEUE(wait, current);
- int pending;
- init_waitqueue_head(&delay_wait);
- add_wait_queue(&delay_wait, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(1);
- pending = signal_pending(current);
- remove_wait_queue(&delay_wait, &wait);
- set_current_state(TASK_RUNNING);
- if (pending)
- return 1; /* Interrupted */
- }
-
- return 0;
-}
-
static int brcmf_net2idx(struct brcmf_info *drvr_priv, struct net_device *net)
{
int i = 0;
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