change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/arch/x86/include/asm/vvar.h
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@@ -1,7 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * vvar.h: Shared vDSO/kernel variable declarations
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  * Copyright (c) 2011 Andy Lutomirski
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- * Subject to the GNU General Public License, version 2
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  *
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  * A handful of variables are accessible (read-only) from userspace
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  * code in the vsyscall page and the vdso.  They are declared here.
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@@ -19,10 +19,10 @@
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 #ifndef _ASM_X86_VVAR_H
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 #define _ASM_X86_VVAR_H
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-#if defined(__VVAR_KERNEL_LDS)
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-
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-/* The kernel linker script defines its own magic to put vvars in the
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- * right place.
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+#ifdef EMIT_VVAR
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+/*
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+ * EMIT_VVAR() is used by the kernel linker script to put vvars in the
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+ * right place. Also, it's used by kernel code to import offsets values.
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  */
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 #define DECLARE_VVAR(offset, type, name) \
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 	EMIT_VVAR(name, offset)
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@@ -33,9 +33,12 @@
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 #define DECLARE_VVAR(offset, type, name)				\
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 	extern type vvar_ ## name[CS_BASES]				\
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-	__attribute__((visibility("hidden")));
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+	__attribute__((visibility("hidden")));				\
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+	extern type timens_ ## name[CS_BASES]				\
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+	__attribute__((visibility("hidden")));				\
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 #define VVAR(name) (vvar_ ## name)
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+#define TIMENS(name) (timens_ ## name)
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 #define DEFINE_VVAR(type, name)						\
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 	type name[CS_BASES]						\