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Date:   Wed, 29 May 2019 20:02:39 -0700
From:   Greg Kroah-Hartman <>
Cc:     Greg Kroah-Hartman <>,, kbuild test robot <>,
        "Steven Rostedt (VMware)" <>
Subject: [PATCH 4.19 001/276] x86: Hide the int3_emulate_call/jmp functions from UML

From: Steven Rostedt (VMware) <>

commit 693713cbdb3a4bda5a8a678c31f06560bbb14657 upstream.

User Mode Linux does not have access to the ip or sp fields of the pt_regs,
and accessing them causes UML to fail to build. Hide the int3_emulate_jmp()
and int3_emulate_call() instructions from UML, as it doesn't need them

Reported-by: kbuild test robot <>
Signed-off-by: Steven Rostedt (VMware) <>
Signed-off-by: Greg Kroah-Hartman <>

 arch/x86/include/asm/text-patching.h |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/arch/x86/include/asm/text-patching.h
+++ b/arch/x86/include/asm/text-patching.h
@@ -39,6 +39,7 @@ extern int poke_int3_handler(struct pt_r
 extern void *text_poke_bp(void *addr, const void *opcode, size_t len, void *handler);
 extern int after_bootmem;
+#ifndef CONFIG_UML_X86
 static inline void int3_emulate_jmp(struct pt_regs *regs, unsigned long ip)
 	regs->ip = ip;
@@ -65,6 +66,7 @@ static inline void int3_emulate_call(str
 	int3_emulate_push(regs, regs->ip - INT3_INSN_SIZE + CALL_INSN_SIZE);
 	int3_emulate_jmp(regs, func);
+#endif /* CONFIG_X86_64 */
+#endif /* !CONFIG_UML_X86 */
 #endif /* _ASM_X86_TEXT_PATCHING_H */

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