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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2008-01-30 13:33:25 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:25 +0100 |
| commit | c84d6af881be84687fa924f16b2f4b4690354165 (patch) | |
| tree | b0e2d7a170cf622e424dac7fad94e43353e74050 /arch/x86/kernel/reboot.c | |
| parent | xen: fix section usage in xen-head.S and setup.c (diff) | |
| download | linux-c84d6af881be84687fa924f16b2f4b4690354165.tar.xz linux-c84d6af881be84687fa924f16b2f4b4690354165.zip | |
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 <alan@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/reboot.c')
| -rw-r--r-- | arch/x86/kernel/reboot.c | 6 |
1 files changed, 4 insertions, 2 deletions
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) |