@@ -39,7 +39,6 @@ struct vdso_data *arch_get_vdso_data(void *vvar_page)
#undef EMIT_VVAR
DEFINE_VVAR(struct vdso_data, _vdso_data);
-DEFINE_VVAR_SINGLE(struct vdso_rng_data, _vdso_rng_data);
unsigned int vclocks_used __read_mostly;
@@ -22,7 +22,7 @@ struct vdso_data *__x86_get_k_vdso_data(void)
static __always_inline
struct vdso_rng_data *__x86_get_k_vdso_rng_data(void)
{
- return &_vdso_rng_data;
+ return (void *)&__vvar_page + __VDSO_RND_DATA_OFFSET;
}
#define __arch_get_k_vdso_rng_data __x86_get_k_vdso_rng_data
@@ -19,6 +19,8 @@
#ifndef _ASM_X86_VVAR_H
#define _ASM_X86_VVAR_H
+#define __VDSO_RND_DATA_OFFSET 640
+
#ifdef EMIT_VVAR
/*
* EMIT_VVAR() is used by the kernel linker script to put vvars in the
@@ -62,7 +64,7 @@ DECLARE_VVAR(0, struct vdso_data, _vdso_data)
#if !defined(_SINGLE_DATA)
#define _SINGLE_DATA
-DECLARE_VVAR_SINGLE(640, struct vdso_rng_data, _vdso_rng_data)
+DECLARE_VVAR_SINGLE(__VDSO_RND_DATA_OFFSET, struct vdso_rng_data, _vdso_rng_data)
#endif
#undef DECLARE_VVAR
Remove the usage of the vvar _vdso_rng_data from the kernel-space code, as the x86 vvar machinery is about to be removed. The definition of the structure is unnecessary, as the data lives in a page pre-allocated by the linker anyways. The vdso user-space access to the rng data will be switched soon. DEFINE_VVAR_SINGLE() is now unused. It will be removed later togehter with the rest of vvar.h. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> --- arch/x86/entry/vdso/vma.c | 1 - arch/x86/include/asm/vdso/vsyscall.h | 2 +- arch/x86/include/asm/vvar.h | 4 +++- 3 files changed, 4 insertions(+), 3 deletions(-)