linux-kernel - Re: [PATCH v1] x86, kasan, ftrace: Put APIC interrupt handlers into .irqentry.text

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Date:	Fri, 15 Jul 2016 17:19:46 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Alexander Potapenko <glider@...gle.com>
Cc:	kbuild-all@...org, dvyukov@...gle.com, kcc@...gle.com,
	aryabinin@...tuozzo.com, x86@...nel.org, rostedt@...dmis.org,
	mingo@...hat.com, kasan-dev@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] x86, kasan, ftrace: Put APIC interrupt handlers into
 .irqentry.text

Hi,

[auto build test WARNING on tip/x86/core]
[also build test WARNING on v4.7-rc7 next-20160714]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Alexander-Potapenko/x86-kasan-ftrace-Put-APIC-interrupt-handlers-into-irqentry-text/20160715-152601
config: x86_64-acpi-redef (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> arch/x86/entry/entry_64.S:674:15: warning: extra tokens at end of #ifdef directive
    #ifdef defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN)
                  ^

vim +674 arch/x86/entry/entry_64.S

   658	END(\sym)
   659	.endm
   660	
   661	#ifdef CONFIG_TRACING
   662	#define trace(sym) trace_##sym
   663	#define smp_trace(sym) smp_trace_##sym
   664	
   665	.macro trace_apicinterrupt num sym
   666	apicinterrupt3 \num trace(\sym) smp_trace(\sym)
   667	.endm
   668	#else
   669	.macro trace_apicinterrupt num sym do_sym
   670	.endm
   671	#endif
   672	
   673	/* Make sure APIC interrupt handlers end up in the irqentry section. */
 > 674	#ifdef defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN)
   675	#define PUSH_SECTION_IRQENTRY	.pushsection .irqentry.text, "ax"
   676	#define POP_SECTION_IRQENTRY	.popsection
   677	#else
   678	#define PUSH_SECTION_IRQENTRY
   679	#define POP_SECTION_IRQENTRY
   680	#endif
   681	
   682	.macro apicinterrupt num sym do_sym

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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