Re: [PATCH] [4.11 regression] cpsw/netcp: refine cpts dependency

[David Miller]

From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Fri, 28 Apr 2017 17:03:58 +0200

> Tony Lindgren reports a kernel oops that resulted from my compile-time
> fix on the default config. This shows two problems:
> 
> a) configurations that did not already enable PTP_1588_CLOCK will
>    now miss the cpts driver
> 
> b) when cpts support is disabled, the driver crashes. This is a
>    preexisting problem that we did not notice before my patch.
> 
> While the second problem is still being investigated, this modifies
> the dependencies again, getting us back to the original state, with
> another 'select NET_PTP_CLASSIFY' added in to avoid the original
> link error we got, and the 'depends on POSIX_TIMERS' to hide
> the CPTS support when turning it on would be useless.
> 
> Cc: stable@xxxxxxxxxxxxxxx # 4.11 needs this
> Fixes: 07fef3623407 ("cpsw/netcp: cpts depends on posix_timers")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Applied, thanks Arnd.