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Message-ID: <xnsvk5wlfuxomr3aayz6essyzgofux5orj366cizh5525ygbbx@tpdunjmf53m7>
Date: Thu, 23 May 2024 13:34:23 +0800
From: Coiby Xu <coxu@...hat.com>
To: Baoquan He <bhe@...hat.com>, kernel test robot <lkp@...el.com>
Cc: kexec@...ts.infradead.org, oe-kbuild-all@...ts.linux.dev, 
	Ondrej Kozina <okozina@...hat.com>, Milan Broz <gmazyland@...il.com>, 
	Thomas Staudt <tstaudt@...ibm.com>, Daniel P . Berrangé <berrange@...hat.com>, 
	Kairui Song <ryncsn@...il.com>, Jan Pazdziora <jpazdziora@...hat.com>, 
	Pingfan Liu <kernelfans@...il.com>, Dave Young <dyoung@...hat.com>, linux-kernel@...r.kernel.org, 
	x86@...nel.org, Dave Hansen <dave.hansen@...el.com>, 
	Vitaly Kuznetsov <vkuznets@...hat.com>, Vivek Goyal <vgoyal@...hat.com>, 
	Kees Cook <keescook@...omium.org>, "Gustavo A. R. Silva" <gustavoars@...nel.org>, 
	"(open list:KERNEL HARDENING (not covered by other areas):Keyword:b__counted_byb)" <linux-hardening@...r.kernel.org>
Subject: Re: [PATCH v3 2/7] crash_dump: make dm crypt keys persist for the
 kdump kernel

On Tue, May 21, 2024 at 11:20:35AM +0800, Baoquan He wrote:
>On 04/26/24 at 09:10pm, kernel test robot wrote:
>> Hi Coiby,
>>
>> kernel test robot noticed the following build warnings:
>>
>> [auto build test WARNING on linus/master]
>> [also build test WARNING on v6.9-rc5 next-20240426]
>> [cannot apply to tip/x86/core]
>> [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/Coiby-Xu/kexec_file-allow-to-place-kexec_buf-randomly/20240425-180836
>> base:   linus/master
>> patch link:    https://lore.kernel.org/r/20240425100434.198925-3-coxu%40redhat.com
>> patch subject: [PATCH v3 2/7] crash_dump: make dm crypt keys persist for the kdump kernel
>> config: x86_64-randconfig-r113-20240426 (https://download.01.org/0day-ci/archive/20240426/202404262003.qsWvGwZU-lkp@intel.com/config)
>> compiler: gcc-10 (Ubuntu 10.5.0-1ubuntu1) 10.5.0
>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240426/202404262003.qsWvGwZU-lkp@intel.com/reproduce)
>
>
>Please respond to the lkp report in time whether it's a problem or not,
>otherwise the link will be unavailable.

Thanks for the reminder! I've fixed the reported problem in v4.

>
>>
>> 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@...el.com>
>> | Closes: https://lore.kernel.org/oe-kbuild-all/202404262003.qsWvGwZU-lkp@intel.com/
>>
>> sparse warnings: (new ones prefixed by >>)
>> >> kernel/crash_dump_dm_crypt.c:31:3: sparse: sparse: symbol 'keys_header' was not declared. Should it be static?

Yes, symbol 'keys_header' should be static! Thanks for the report!

>>
>> vim +/keys_header +31 kernel/crash_dump_dm_crypt.c
>>
>>     27	
>>     28	struct keys_header {
>>     29		unsigned int key_count;
>>     30		struct dm_crypt_key keys[] __counted_by(key_count);
>>   > 31	} *keys_header;
>>     32	
>>
>> --
>> 0-DAY CI Kernel Test Service
>> https://github.com/intel/lkp-tests/wiki
>>
>

-- 
Best regards,
Coiby


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