From: "Borislav Petkov (AMD)" bp@alien8.de
The Link tag has all the details but basically due to missing upstream commits, the header which contains __text_gen_insn() is not in the includes in paravirt.c, leading to:
arch/x86/kernel/paravirt.c: In function 'paravirt_patch_call': arch/x86/kernel/paravirt.c:65:9: error: implicit declaration of function '__text_gen_insn' \ [-Werror=implicit-function-declaration] 65 | __text_gen_insn(insn_buff, CALL_INSN_OPCODE, | ^~~~~~~~~~~~~~~
Add the missing include.
Reported-by: Omar Sandoval osandov@osandov.com Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Link: https://lore.kernel.org/r/ZeYXvd1-rVkPGvvW@telecaster Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/kernel/paravirt.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 5bea8d93883a2..f0e4ad8595ca7 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -31,6 +31,7 @@ #include <asm/special_insns.h> #include <asm/tlb.h> #include <asm/io_bitmap.h> +#include <asm/text-patching.h>
/* * nop stub, which must not clobber anything *including the stack* to