Re: [PATCH v2 3/4] input: Deprecate real timestamps beyond year 2106

From: Deepa Dinamani
Date: Fri Oct 28 2016 - 11:19:52 EST


On Fri, Oct 28, 2016 at 5:43 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> On Monday, October 17, 2016 8:27:32 PM CEST Deepa Dinamani wrote:
>> @@ -55,24 +60,24 @@ struct ff_effect_compat {
>>
>> static inline size_t input_event_size(void)
>> {
>> - return (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) ?
>> - sizeof(struct input_event_compat) : sizeof(struct input_event);
>> + return in_compat_syscall() ? sizeof(struct raw_input_event_compat) :
>> + sizeof(struct raw_input_event);
>> }
>
> I think the COMPAT_USE_64BIT_TIME check has to stay here,
> it's needed for x32 mode on x86-64.

There is no time_t anymore in the raw_input_event structure.
The struct uses __kernel_ulong_t type.
This should take care of x32 support.

>From this cover letter:
https://www.spinics.net/lists/linux-arch/msg16356.html

I see that that the __kernel types were introduced to address the ABI
issues for x32.

-Deepa