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Date: Wed, 10 Jun 2015 07:06:16 -0500 From: Josh Poimboeuf <jpoimboe@...hat.com> To: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com> Cc: Michal Marek <mmarek@...e.cz>, Peter Zijlstra <peterz@...radead.org>, Andy Lutomirski <luto@...nel.org>, Borislav Petkov <bp@...en8.de>, Linus Torvalds <torvalds@...ux-foundation.org>, Andi Kleen <andi@...stfloor.org>, x86@...nel.org, live-patching@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v5 08/10] x86/asm/head: Fix asmvalidate warnings for head_64.S Fix the following asmvalidate warnings: asmvalidate: arch/x86/kernel/head_64.o: start_cpu0(): unsupported fallthrough at end of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x4: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xd: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x16: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x1f: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x28: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x31: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x3a: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x43: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x4a: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x55: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x5c: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x65: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x6e: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x77: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x80: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x8b: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x94: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x9b: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xa6: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xaf: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xb8: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xc1: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xca: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xd3: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xdc: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xe5: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xee: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0xf7: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x100: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x109: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x112: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array()+0x11b: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_array(): unsupported fallthrough at end of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_common()+0xbb: unsupported jump to outside of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_common(): unsupported fallthrough at end of function asmvalidate: arch/x86/kernel/head_64.o: early_idt_handler_common(): missing FP_SAVE/RESTORE macros 1. start_cpu0() isn't a normal callable function because it doesn't return to its caller. Change ENDPROC -> END accordingly. 2. early_idt_handler_array() and early_idt_handler_common() aren't callable functions. Change ENDPROC -> END accordingly. Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com> --- arch/x86/kernel/head_64.S | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index e5c27f7..8ba22cf 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -20,6 +20,7 @@ #include <asm/processor-flags.h> #include <asm/percpu.h> #include <asm/nops.h> +#include <asm/func.h> #ifdef CONFIG_PARAVIRT #include <asm/asm-offsets.h> @@ -301,7 +302,7 @@ ENTRY(start_cpu0) pushq $__KERNEL_CS # set correct cs pushq %rax # target address in negative space lretq -ENDPROC(start_cpu0) +END(start_cpu0) #endif /* SMP bootup changes these two */ @@ -336,7 +337,7 @@ ENTRY(early_idt_handler_array) i = i + 1 .fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc .endr -ENDPROC(early_idt_handler_array) +END(early_idt_handler_array) early_idt_handler_common: /* @@ -414,7 +415,7 @@ early_idt_handler_common: .Lis_nmi: addq $16,%rsp # drop vector number and error code INTERRUPT_RETURN -ENDPROC(early_idt_handler_common) +END(early_idt_handler_common) __INITDATA -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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