For the same reason as commit e876f0b69d ("lib/vdso: Allow
architectures to provide the vdso data pointer"), powerpc wants to
avoid calculation of relative position to code.
As the timens_vdso_data is next page to vdso_data, provide
vdso_data pointer to __arch_get_timens_vdso_data() in order
to ease the calculation on powerpc in following patches.
Signed-off-by: Christophe Leroy <firstname.lastname@example.org>
Reviewed-by: Thomas Gleixner <email@example.com>
Reviewed-by: Vincenzo Frascino <firstname.lastname@example.org>
Acked-by: Andrei Vagin <email@example.com>
Signed-off-by: Michael Ellerman <firstname.lastname@example.org>