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Andrea Parri
0af3e137c1
hyperv_timer.c exports hyperv_cs, which is used by stimers and the timesync mechanism. However, the clocksource dependency is not needed: these mechanisms only depend on the partition reference counter (which can be read via a MSR or via the TSC Reference Page). Introduce the (function) pointer hv_read_reference_counter, as an embodiment of the partition reference counter read, and export it in place of the hyperv_cs pointer. The latter can be removed. This should clarify that there's no relationship between Hyper-V stimers & timesync and the Linux clocksource abstractions. No functional or semantic change. Suggested-by: Michael Kelley <[email protected]> Signed-off-by: Andrea Parri <[email protected]> Reviewed-by: Michael Kelley <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> Link: https://lore.kernel.org/r/[email protected]