Re: [PATCH v8 01/20] kasan, mm: change hooks signatures

From: kbuild test robot <lkp@intel.com>
To: Andrey Konovalov <andreyknvl@google.com>
Cc: kbuild-all@01.org, Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Alexander Potapenko <glider@google.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Christoph Lameter <cl@linux.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Dave Martin <dave.martin@arm.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	"Eric W . Biederman" <ebiederm@xmission.com>,
	Ingo Molnar <mingo@kernel.org>,
	Paul Lawrence <paullawrence@google.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Arnd Bergmann <arnd@arndb.de>,
	"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kate Stewart <kstewart@linuxfoundation.org>,
	Mike Rapoport <rppt@linux.vnet.ibm.com>,
	kasan-dev@googlegroups.com, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sparse@vger.kernel.org, linux-mm@kvack.org,
	linux-kbuild@vger.kernel.org, Kostya Serebryany <kcc@google.com>,
	Evgeniy Stepanov <eugenis@google.com>,
	Lee Smith <Lee.Smith@arm.com>,
	Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
	Jacob Bramley <Jacob.Bramley@arm.com>,
	Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
	Jann Horn <jannh@google.com>, Mark Brand <markbrand@google.com>,
	Chintan Pandya <cpandya@codeaurora.org>,
	Vishwath Mohan <vishwath@google.com>,
	Andrey Konovalov <andreyknvl@google.com>
Subject: Re: [PATCH v8 01/20] kasan, mm: change hooks signatures
Date: Fri, 21 Sep 2018 12:05:01 +0800	[thread overview]
Message-ID: <201809211218.10PA6RGy%fengguang.wu@intel.com> (raw)
In-Reply-To: <8b30f2d3e325de843f892e32f076fe9cc726191d.1537383101.git.andreyknvl@google.com>

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Hi Andrey,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.19-rc4 next-20180919]
[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/Andrey-Konovalov/kasan-add-software-tag-based-mode-for-arm64/20180920-172444
config: x86_64-randconfig-x013-201837 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   In file included from include/linux/slab.h:129:0,
                    from include/linux/crypto.h:24,
                    from arch/x86/kernel/asm-offsets.c:9:
   include/linux/kasan.h: In function 'kasan_init_slab_obj':
>> include/linux/kasan.h:111:9: error: 'ptr' undeclared (first use in this function)
     return ptr;
            ^~~
   include/linux/kasan.h:111:9: note: each undeclared identifier is reported only once for each function it appears in
   make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +/ptr +111 include/linux/kasan.h

   102	
   103	static inline void kasan_poison_slab(struct page *page) {}
   104	static inline void kasan_unpoison_object_data(struct kmem_cache *cache,
   105						void *object) {}
   106	static inline void kasan_poison_object_data(struct kmem_cache *cache,
   107						void *object) {}
   108	static inline void *kasan_init_slab_obj(struct kmem_cache *cache,
   109					const void *object)
   110	{
 > 111		return ptr;
   112	}
   113	

---
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