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authorClemens Ladisch <clemens@ladisch.de>2005-10-30 15:03:32 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-30 17:37:29 -0800
commit3f992e1bb7eab7b7af2b9ea46d2b80b1fed84845 (patch)
tree9e6ab94a66064227adfc8b13cc07ad33fdee2bb5 /drivers/char
parent642d30bbc73512269de1524251ccc378d7782b85 (diff)
[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 <clemens@ladisch.de> Acked-by: Bob Picco <bob.picco@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/hpet.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index bf2f5a51c687..e3c7c0096e17 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;