x86/vdso: Use __arch_get_vdso_data() to access vdso data

The implementation details of the vdso_data access will change.
Prepare for that by using the existing helper function.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-11-b64f0842d512@linutronix.de

diff --git a/arch/x86/include/asm/vdso/getrandom.h b/arch/x86/include/asm/vdso/getrandom.h
index ff5334ad32a0f56b2d4265fd38d9c287de3dfaa1..ecdcdbcd3392533e5619d7f09403d60a9810ceab 100644 (file)
--- a/arch/x86/include/asm/vdso/getrandom.h
+++ b/arch/x86/include/asm/vdso/getrandom.h
@@ -32,8 +32,8 @@ static __always_inline ssize_t getrandom_syscall(void *buffer, size_t len, unsig
 
 static __always_inline const struct vdso_rng_data *__arch_get_vdso_rng_data(void)
 {
-       if (IS_ENABLED(CONFIG_TIME_NS) && __vdso_data->clock_mode == VDSO_CLOCKMODE_TIMENS)
-               return (void *)&__vdso_rng_data + ((void *)&__timens_vdso_data - (void *)&__vdso_data);
+       if (IS_ENABLED(CONFIG_TIME_NS) && __arch_get_vdso_data()->clock_mode == VDSO_CLOCKMODE_TIMENS)
+               return (void *)&__vdso_rng_data + ((void *)&__timens_vdso_data - (void *)__arch_get_vdso_data());
        return &__vdso_rng_data;
 }