[PATCH v11 5/8] clocksource/drivers/arm_arch_timer: Simplify ACPI support code.
Fu Wei
fu.wei at linaro.org
Wed Sep 7 02:23:43 PDT 2016
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
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