From 3f992e1bb7eab7b7af2b9ea46d2b80b1fed84845 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sun, 30 Oct 2005 15:03:32 -0800 Subject: [PATCH] [PATCH] hpet: remove superfluous register reads This patch removes several reads of a timer's config register that serve no purpose whatsoever. Signed-off-by: Clemens Ladisch Acked-by: Bob Picco Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/hpet.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index bf2f5a51c6..e3c7c0096e 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -367,7 +367,6 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp) if (!devp->hd_ireqfreq) return -EIO; - v = readq(&timer->hpet_config); spin_lock_irq(&hpet_lock); if (devp->hd_flags & HPET_IE) { @@ -378,7 +377,6 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp) devp->hd_flags |= HPET_IE; spin_unlock_irq(&hpet_lock); - t = readq(&timer->hpet_config); irq = devp->hd_hdwirq; if (irq) { @@ -855,11 +853,9 @@ int hpet_alloc(struct hpet_data *hdp) } for (i = 0, devp = hpetp->hp_dev; i < hpetp->hp_ntimer; i++, devp++) { - unsigned long v; struct hpet_timer __iomem *timer; timer = &hpet->hpet_timers[devp - hpetp->hp_dev]; - v = readq(&timer->hpet_config); devp->hd_hpets = hpetp; devp->hd_hpet = hpet; -- 2.39.5