So even if the correspondong syscall are disabled and the
corresponding clocks too, you should return an -ENOSYS from the
do_adjtimex helper, in case that another component tries to use it in
the kernel, right ?
Regards,
Romain
2017-11-20 17:08 GMT+01:00 Alan Cox <[email protected]>:
> On Mon, 20 Nov 2017 16:22:06 +0100
> peter enderborg <[email protected]> wrote:
>
>> On 11/20/2017 04:00 PM, Romain Perier wrote:
>> > Hi,
>> >
>> > 2017-11-20 15:10 GMT+01:00 peter enderborg <[email protected]>:
>> >> I think it should return a error code at least.
>> > In which case ? The idea was to don't change the behaviour of these
>> > functions (from the "API" point of view) and to avoid regressions in
>> > the kernel components that depend on these NTP feature.
>> > (so be transparent the most as possible)
>> >
>> > Thanks,
>> > Romain
>> >
>>
>> do_adjtimex should return -ENOSYS in my opinion, however it is not in the manual
>> that it can return ENOSYS.
>
> The standards specifications state what must be returned for certain
> error cases, they don't forbid other errors being added.
>
> Old old Linx will of course already return -1,ENOSYS to this call.
>
> Alan
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