[PATCH v11 5/8] clocksource/drivers/arm_arch_timer: Simplify ACPI support code.

Fu Wei fu.wei at linaro.org
Tue Sep 13 02:22:42 PDT 2016


Hi Thomas, Daniel,

For these  arm_arch_timer patches, do you have any other suggestion or comment?
I have deleted "skipping" in the error message.

I have prepared v12 (rebase to rc6 and on the top of IORT v11),
should I send it now (if you are OK with my arm_arch_timer patches ),
or anything I can do to improve this patchset ?

Thanks.

On 7 September 2016 at 17:23, Fu Wei <fu.wei at linaro.org> wrote:
> Hi Thomas
>
> On 6 September 2016 at 22:36, Thomas Gleixner <tglx at linutronix.de> wrote:
>> On Tue, 6 Sep 2016, fu.wei at linaro.org wrote:
>>> +     if (timer_count < 0)
>>> +             pr_err("Failed to get platform timer info, skipping.\n");
>>
>> So this prints something about skipping. But then it continues as if
>> nothing went wrong. That's either wrong or confusing or both.
>
> yes, you are right, this info is confusing.
> maybe we just delete the "skipping" ?
>
> “timer_count < 0” is caused by some firmware bug, in gtdt.c:
> ----
> int __init acpi_gtdt_init(struct acpi_table_header *table)
> {
> ......
>         if (start < (void *)table + sizeof(struct acpi_table_gtdt)) {
>         pr_err(FW_BUG "Failed to retrieve timer info from firmware:
> invalid data.\n");
>         return -EINVAL;
> ......
> }
> ----
>
> But in this situation( without platform timers ), system still can work.
> So I thing we just need to print a error.
>
>>
>>> -     arch_timer_init();
>>> -     return 0;
>>> +     return arch_timer_init();
>>
>> Thanks,
>>
>>         tglx
>
>
>
> --
> Best regards,
>
> Fu Wei
> Software Engineer
> Red Hat



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat



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