linux-kernel - [tip: timers/vdso] arm64: vdso32: Provide clock_getres

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Message-ID: <176831205420.510.16851151516374277758.tip-bot2@tip-bot2>
Date: Tue, 13 Jan 2026 13:47:34 -0000
From: tip-bot2 for Thomas Weißschuh <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: thomas.weissschuh@...utronix.de, Thomas Gleixner <tglx@...nel.org>,
 Will Deacon <will@...nel.org>, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: timers/vdso] arm64: vdso32: Provide clock_getres_time64()

The following commit has been merged into the timers/vdso branch of tip:

Commit-ID:     f10c2e72b5dea0bc7485a05da8e21781b69d5508
Gitweb:        https://git.kernel.org/tip/f10c2e72b5dea0bc7485a05da8e21781b69d5508
Author:        Thomas Weißschuh <thomas.weissschuh@...utronix.de>
AuthorDate:    Tue, 23 Dec 2025 07:59:19 +01:00
Committer:     Thomas Gleixner <tglx@...nel.org>
CommitterDate: Tue, 13 Jan 2026 14:42:23 +01:00

arm64: vdso32: Provide clock_getres_time64()

For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...nel.org>
Acked-by: Will Deacon <will@...nel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-8-97ea7a06a543@linutronix.de
---
 arch/arm64/kernel/vdso32/vdso.lds.S      | 1 +
 arch/arm64/kernel/vdso32/vgettimeofday.c | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/arch/arm64/kernel/vdso32/vdso.lds.S b/arch/arm64/kernel/vdso32/vdso.lds.S
index e02b274..c374fb0 100644
--- a/arch/arm64/kernel/vdso32/vdso.lds.S
+++ b/arch/arm64/kernel/vdso32/vdso.lds.S
@@ -86,6 +86,7 @@ VERSION
 		__vdso_gettimeofday;
 		__vdso_clock_getres;
 		__vdso_clock_gettime64;
+		__vdso_clock_getres_time64;
 	local: *;
 	};
 }
diff --git a/arch/arm64/kernel/vdso32/vgettimeofday.c b/arch/arm64/kernel/vdso32/vgettimeofday.c
index 29b4d8f..0c6998e 100644
--- a/arch/arm64/kernel/vdso32/vgettimeofday.c
+++ b/arch/arm64/kernel/vdso32/vgettimeofday.c
@@ -32,6 +32,11 @@ int __vdso_clock_getres(clockid_t clock_id,
 	return __cvdso_clock_getres_time32(clock_id, res);
 }
 
+int __vdso_clock_getres_time64(clockid_t clock_id, struct __kernel_timespec *res)
+{
+	return __cvdso_clock_getres(clock_id, res);
+}
+
 /* Avoid unresolved references emitted by GCC */
 
 void __aeabi_unwind_cpp_pr0(void)