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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/x86/include/asm/jump_label.h
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@@ -2,6 +2,8 @@
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 #ifndef _ASM_X86_JUMP_LABEL_H
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 #define _ASM_X86_JUMP_LABEL_H
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+#define HAVE_JUMP_LABEL_BATCH
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+
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 #define JUMP_LABEL_NOP_SIZE 5
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 #ifdef CONFIG_X86_64
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@@ -24,7 +26,8 @@
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 		".byte " __stringify(STATIC_KEY_INIT_NOP) "\n\t"
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 		".pushsection __jump_table,  \"aw\" \n\t"
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 		_ASM_ALIGN "\n\t"
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-		_ASM_PTR "1b, %l[l_yes], %c0 + %c1 \n\t"
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+		".long 1b - ., %l[l_yes] - . \n\t"
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+		_ASM_PTR "%c0 + %c1 - .\n\t"
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 		".popsection \n\t"
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 		: :  "i" (key), "i" (branch) : : l_yes);
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@@ -40,7 +43,8 @@
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 		"2:\n\t"
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 		".pushsection __jump_table,  \"aw\" \n\t"
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 		_ASM_ALIGN "\n\t"
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-		_ASM_PTR "1b, %l[l_yes], %c0 + %c1 \n\t"
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+		".long 1b - ., %l[l_yes] - . \n\t"
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+		_ASM_PTR "%c0 + %c1 - .\n\t"
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 		".popsection \n\t"
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 		: :  "i" (key), "i" (branch) : : l_yes);
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@@ -48,18 +52,6 @@
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 l_yes:
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 	return true;
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 }
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-
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-#ifdef CONFIG_X86_64
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-typedef u64 jump_label_t;
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-#else
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-typedef u32 jump_label_t;
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-#endif
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-
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-struct jump_entry {
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-	jump_label_t code;
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-	jump_label_t target;
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-	jump_label_t key;
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-};
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 #else	/* __ASSEMBLY__ */
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@@ -75,7 +67,8 @@
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 	.endif
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 	.pushsection __jump_table, "aw"
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 	_ASM_ALIGN
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-	_ASM_PTR	.Lstatic_jump_\@, \target, \key
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+	.long		.Lstatic_jump_\@ - ., \target - .
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+	_ASM_PTR	\key - .
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 	.popsection
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 .endm
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@@ -91,7 +84,8 @@
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 	.endif
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 	.pushsection __jump_table, "aw"
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 	_ASM_ALIGN
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-	_ASM_PTR	.Lstatic_jump_\@, \target, \key + 1
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+	.long		.Lstatic_jump_\@ - ., \target - .
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+	_ASM_PTR	\key + 1 - .
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 	.popsection
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 .endm
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