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vdso: Automatically select HAVE_GENERIC_VDSO if necessary

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gettimeofday() and getrandom() in the vDSO require the vDSO datastore.

Enable it automatically if either one of them is enabled so the
architecture code doesn't need to know this.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Link: https://patch.msgid.link/20260709-vdso-have_generic_vdso-v1-4-d2e1061f268b@linutronix.de
This commit is contained in:
Thomas Weißschuh
2026-07-15 10:49:02 +02:00
committed by Thomas Gleixner
parent 8c0015572c
commit faeff8d416
1 changed files with 2 additions and 4 deletions
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lib/vdso/Kconfig
+2 -4
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@@ -3,10 +3,9 @@
config HAVE_GENERIC_VDSO config HAVE_GENERIC_VDSO
bool bool
if HAVE_GENERIC_VDSO
config GENERIC_GETTIMEOFDAY config GENERIC_GETTIMEOFDAY
bool bool
select HAVE_GENERIC_VDSO
help help
This is a generic implementation of gettimeofday vdso. This is a generic implementation of gettimeofday vdso.
Each architecture that enables this feature has to Each architecture that enables this feature has to
@@ -21,7 +20,6 @@ config GENERIC_VDSO_OVERFLOW_PROTECT
config VDSO_GETRANDOM config VDSO_GETRANDOM
bool bool
select HAVE_GENERIC_VDSO
help help
Selected by architectures that support vDSO getrandom(). Selected by architectures that support vDSO getrandom().
endif