From c84d6af881be84687fa924f16b2f4b4690354165 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 30 Jan 2008 13:33:25 +0100 Subject: x86: reboot: remove inb_p usage We are driving a motherboard port so use a 2uS explicit delay at this point. Signed-off-by: Alan Cox Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/reboot.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/x86/kernel/reboot.c') diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 5b32f0b4d133..5818dc28167d 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -319,9 +319,11 @@ static inline void kb_wait(void) { int i; - for (i = 0; i < 0x10000; i++) - if ((inb_p(0x64) & 0x02) == 0) + for (i = 0; i < 0x10000; i++) { + if ((inb(0x64) & 0x02) == 0) break; + udelay(2); + } } void machine_emergency_restart(void) -- cgit v1.2.3-55-g7522