vdso/gettimeofday: Avoid runtime conditional in do_hres_timens()

Currently the derivation of the non-namespaced clock from its namespaced
sibling uses a runtime conditional. This conditional mirrors the
VDSO_RAW check in __cvdso_clock_gettime_common(), in a non-obvious way.

Replace the runtime conditional with unconditional pointer arithmetic,
which removes the duplication of logic and also is smaller and faster.
Also get rid of the weird double use of the 'vc' variable, pointing both
to the array of clocks and later to one specific one.

This saves 31 bytes of .text on x86_64.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260921-vdso-timens-conditional-v1-1-eac173f8bd92@weissschuh.net

0 files changed, 0 insertions, 0 deletions