[tip: timers/vdso] vdso/gettimeofday: Define fallback __arch_get_vdso_u_time_data() in gettimeofday.c

[tip-bot2 for Thomas Weißschuh]

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

Commit-ID:     4fba7bb3e73a8087c353a6679a49ad81579114bc
Gitweb:        https://git.kernel.org/tip/4fba7bb3e73a8087c353a6679a49ad81579114bc
Author:        Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
AuthorDate:    Wed, 09 Sep 2026 10:51:15 +02:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxx>
CommitterDate: Thu, 15 Oct 2026 17:33:19 +02:00

vdso/gettimeofday: Define fallback __arch_get_vdso_u_time_data() in gettimeofday.c

__arch_get_vdso_u_time_data() is only used in gettimeofday.c. vsyscall.h
has become a dumping ground for different kinds of fallbacks.

Move the fallback function definition into gettimeofday.c,
similar to other fallbacks.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
Link: https://patch.msgid.link/20260909-vdso-asm-generic-vsyscall-h-v1-2-63ae856cc659@xxxxxxxxxxxxx
---
 include/asm-generic/vdso/vsyscall.h | 7 -------
 lib/vdso/gettimeofday.c             | 7 +++++++
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/asm-generic/vdso/vsyscall.h b/include/asm-generic/vdso/vsyscall.h
index a6b03cf..fe12fb1 100644
--- a/include/asm-generic/vdso/vsyscall.h
+++ b/include/asm-generic/vdso/vsyscall.h
@@ -4,13 +4,6 @@
 
 #ifndef __ASSEMBLER__
 
-#ifndef __arch_get_vdso_u_time_data
-static __always_inline const struct vdso_time_data *__arch_get_vdso_u_time_data(void)
-{
-	return &vdso_u_time_data;
-}
-#endif
-
 #ifndef __arch_get_vdso_u_rng_data
 static __always_inline const struct vdso_rng_data *__arch_get_vdso_u_rng_data(void)
 {
diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index f7a591a..b867c23 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -93,6 +93,13 @@ static inline bool vdso_cycles_ok(u64 cycles)
 }
 #endif
 
+#ifndef __arch_get_vdso_u_time_data
+static __always_inline const struct vdso_time_data *__arch_get_vdso_u_time_data(void)
+{
+	return &vdso_u_time_data;
+}
+#endif
+
 static __always_inline bool vdso_clockid_valid(clockid_t clock)
 {
 	/* Check for negative values or invalid clocks */