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dfb073d32c
ptp_clock should never be registered unless it stubs one of gettimex64() or gettime64() and settime64(). WARN_ON_ONCE and error out if either set of function pointers is null. For consistency, n_alarm validation is also folded into the WARN_ON_ONCE. Suggested-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by: Tim Hostetler <thostet@google.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Link: https://patch.msgid.link/20251104225915.2040080-1-thostet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.