Re: [PATCH 7/12] IPMI: add poll delay

From: Andrew Morton
Date: Sun Dec 03 2006 - 16:26:56 EST


On Fri, 1 Dec 2006 22:35:20 -0600
Corey Minyard <minyard@xxxxxxx> wrote:

> Make sure to delay a little in the IPMI poll routine so we can pass in
> a timeout time and thus time things out.
>
> Signed-off-by: Corey Minyard <minyard@xxxxxxx>
>
> Index: linux-2.6.19-rc6/drivers/char/ipmi/ipmi_si_intf.c
> ===================================================================
> --- linux-2.6.19-rc6.orig/drivers/char/ipmi/ipmi_si_intf.c
> +++ linux-2.6.19-rc6/drivers/char/ipmi/ipmi_si_intf.c
> @@ -807,7 +807,12 @@ static void poll(void *send_info)
> {
> struct smi_info *smi_info = send_info;
>
> - smi_event_handler(smi_info, 0);
> + /*
> + * Make sure there is some delay in the poll loop so we can
> + * drive time forward and timeout things.
> + */
> + udelay(10);
> + smi_event_handler(smi_info, 10);
> }

I don't understand what this patch is doing. It looks fishy. More
details, please?
-
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