Re: [PATCH] fixup! efi: clocksoure: add EFI event timer

[Sascha Hauer <s.hauer@pengutronix.de>]

On Mon, Mar 13, 2017 at 02:16:06PM +0100, Michael Olbrich wrote:
> ---
> 
> I played with the numbers a bit. This hardware has a 18 Hz tick :-/.
> That's not really useful so just skipping the clocksource is probably the
> best solution.
> 
> Michael
> 
>  drivers/clocksource/efi.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/clocksource/efi.c b/drivers/clocksource/efi.c
> index 89906c452eb7..fb5b7ca63de9 100644
> --- a/drivers/clocksource/efi.c
> +++ b/drivers/clocksource/efi.c
> @@ -71,6 +71,10 @@ static int efi_cs_init(struct clocksource *cs)
>  		uint64_t nb_100ns;
>  
>  		freq = ticks_freq_x86();
> +		if (freq == 0) {
> +			BS->close_event(efi_cs_evt);
> +			return -ENODEV;
> +		}
>  		nb_100ns = 10 * 1000 * 1000 / freq;
>  		pr_warn("EFI Event timer too slow freq = %llu Hz\n", freq);
>  		efiret = BS->set_timer(efi_cs_evt, EFI_TIMER_PERIODIC, nb_100ns);

Since the patch this fixup is for is already in master: Can you provide
a proper, non-fixup patch?

Sascha


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