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Vincenzo Frascino a67de48b30 clocksource/drivers/arm_arch_timer: Fix vDSO clockmode when vDSO disabled
The arm_arch_timer requires VDSO_CLOCKMODE_ARCHTIMER to be defined to
compile correctly. On ARM the vDSO can be disabled and when this is the
case the compilation ends prematurely with an error:

 $ make ARCH=arm multi_v7_defconfig
 $ ./scripts/config -d VDSO
 $ make

drivers/clocksource/arm_arch_timer.c:73:44: error:
‘VDSO_CLOCKMODE_ARCHTIMER’ undeclared here (not in a function)
  static enum vdso_clock_mode vdso_default = VDSO_CLOCKMODE_ARCHTIMER;

Make the usage of VDSO_CLOCKMODE_ARCHTIMER depend on the VDSO enablement
and initialize the vdso clockmode variable with VDSO_CLOCKMODE_NONE
otherwise.

[ tglx: Match changelog and patch content. ]

Fixes: 5e3c6a312a ("ARM/arm64: vdso: Use common vdso clock mode storage")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200224151552.57274-1-vincenzo.frascino@arm.com
2020-02-25 22:08:39 +01:00
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drivers clocksource/drivers/arm_arch_timer: Fix vDSO clockmode when vDSO disabled 2020-02-25 22:08:39 +01:00
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kernel posix-timers: Pass lockdep expression to RCU lists 2020-02-17 20:12:19 +01:00
lib lib/vdso: Allow architectures to provide the vdso data pointer 2020-02-17 20:12:18 +01:00
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