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| author | Florian Fainelli <f.fainelli@gmail.com> | 2020-01-28 22:22:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-21 10:15:55 +0300 |
| commit | 7b81a551f594371dcb2f2952b5f699fd782a9e6e (patch) | |
| tree | e19dcd9a180883e3d5c56e413f3d1faed456f756 | |
| parent | 56b1d6bd414fd245af236eb511323aa6158361a7 (diff) | |
| download | linux-7b81a551f594371dcb2f2952b5f699fd782a9e6e.tar.xz | |
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 c89ac1b9d28b..e0330a25e1c6 100644 --- a/arch/arm/kernel/vdso.c +++ b/arch/arm/kernel/vdso.c @@ -95,6 +95,8 @@ 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")) |