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| author | Florian Fainelli <f.fainelli@gmail.com> | 2020-01-28 20:22:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-20 11:55:59 +0100 |
| commit | 8cf58ea4abd3debe79c714400232f1e312dec621 (patch) | |
| tree | a489297df00ccc2ef5f3a3280433b7d2209777f6 | |
| parent | bc97a345d97556dea71f0748acb5d9ea413c7cc7 (diff) | |
ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional()
commit 45939ce292b4b11159719faaf60aba7d58d5fe33 upstream.
It is possible for a system with an ARMv8 timer to run a 32-bit kernel.
When this happens we will unconditionally have the vDSO code remove the
__vdso_gettimeofday and __vdso_clock_gettime symbols because
cntvct_functional() returns false since it does not match that
compatibility string.
Fixes: ecf99a439105 ("ARM: 8331/1: VDSO initialization, mapping, and synchronization")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/arm/kernel/vdso.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c index e8cda5e02b4e..a51b7ff0a85f 100644 --- a/arch/arm/kernel/vdso.c +++ b/arch/arm/kernel/vdso.c @@ -104,6 +104,8 @@ static bool __init cntvct_functional(void) */ np = of_find_compatible_node(NULL, NULL, "arm,armv7-timer"); if (!np) + np = of_find_compatible_node(NULL, NULL, "arm,armv8-timer"); + if (!np) goto out_put; if (of_property_read_bool(np, "arm,cpu-registers-not-fw-configured")) |