Re: [PATCH v2 4/9] kasan: sw_tags: Support tag widths less than 8 bits

From: kernel test robot <lkp@intel.com>
To: Samuel Holland <samuel.holland@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	linux-riscv@lists.infradead.org,
	Andrey Ryabinin <ryabinin.a.a@gmail.com>,
	Alexander Potapenko <glider@google.com>,
	Andrey Konovalov <andreyknvl@gmail.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	kasan-dev@googlegroups.com
Cc: oe-kbuild-all@lists.linux.dev, llvm@lists.linux.dev,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Alexandre Ghiti <alexghiti@rivosinc.com>,
	Will Deacon <will@kernel.org>,
	Evgenii Stepanov <eugenis@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-arm-kernel@lists.infradead.org,
	Samuel Holland <samuel.holland@sifive.com>
Subject: Re: [PATCH v2 4/9] kasan: sw_tags: Support tag widths less than 8 bits
Date: Wed, 23 Oct 2024 03:30:45 +0800	[thread overview]
Message-ID: <202410230354.sjewoFxA-lkp@intel.com> (raw)
In-Reply-To: <20241022015913.3524425-5-samuel.holland@sifive.com>

Hi Samuel,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on arm64/for-next/core masahiroy-kbuild/for-next masahiroy-kbuild/fixes linus/master v6.12-rc4 next-20241022]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Samuel-Holland/kasan-sw_tags-Use-arithmetic-shift-for-shadow-computation/20241022-100129
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20241022015913.3524425-5-samuel.holland%40sifive.com
patch subject: [PATCH v2 4/9] kasan: sw_tags: Support tag widths less than 8 bits
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20241023/202410230354.sjewoFxA-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241023/202410230354.sjewoFxA-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410230354.sjewoFxA-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/kasan.h:7,
                    from include/linux/mm.h:31,
                    from arch/sh/kernel/asm-offsets.c:14:
>> include/linux/kasan-tags.h:5:10: fatal error: asm/kasan.h: No such file or directory
       5 | #include <asm/kasan.h>
         |          ^~~~~~~~~~~~~
   compilation terminated.
   make[3]: *** [scripts/Makefile.build:102: arch/sh/kernel/asm-offsets.s] Error 1
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1203: prepare0] Error 2
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:224: __sub-make] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:224: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

vim +5 include/linux/kasan-tags.h

     4	
   > 5	#include <asm/kasan.h>
     6	

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