[PATCH] x86 reboot: Remove inb_p usage

From: Alan Cox
Date: Sat Jan 19 2008 - 10:47:21 EST


We are driving a motherboard port so use a 2uS explicit delay at this
point.

Signed-off-by: Alan Cox <alan@xxxxxxxxxx>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc8-mm1/arch/x86/kernel/reboot.c linux-2.6.24-rc8-mm1/arch/x86/kernel/reboot.c
--- linux.vanilla-2.6.24-rc8-mm1/arch/x86/kernel/reboot.c 2008-01-19 14:47:55.000000000 +0000
+++ linux-2.6.24-rc8-mm1/arch/x86/kernel/reboot.c 2008-01-19 14:53:58.000000000 +0000
@@ -319,9 +319,11 @@
{
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)
--
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