Re: [PATCH 4/5] Handle both ISO 8601 encodings of midnight in mktime64()

From: Arnd Bergmann
Date: Fri Dec 18 2015 - 04:15:34 EST


On Friday 18 December 2015 00:02:17 David Howells wrote:
> ISO 8601 format dates permit two different encodings of midnight - 00:00:00
> and 24:00:00 - the first is midnight today and the second is midnight
> tomorrow and is exactly equivalent to the first with tomorrow's date.
>
> Note that the implementation of mktime64() doesn't actually need to be
> changed to handle this - the multiplication by 3600 of the hour will take
> care of it automatically. However, we should document that this handling
> is done in mktime64() and is thus in a common place in the kernel.
>
> This handling is required for X.509 certificate parsing which can be given
> ISO 8601 dates.
>
> Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
> cc: John Stultz <john.stultz@xxxxxxxxxx>
> cc: Arnd Bergmann <arnd@xxxxxxxx>
> cc: stable@xxxxxxxxxxxxxxx
>

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
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