Re: [PATCH v3 2/7] crash_dump: make dm crypt keys persist for the kdump kernel

From: kernel test robot <lkp@intel.com>
To: Coiby Xu <coxu@redhat.com>, kexec@lists.infradead.org
Cc: oe-kbuild-all@lists.linux.dev,
	"Ondrej Kozina" <okozina@redhat.com>,
	"Milan Broz" <gmazyland@gmail.com>,
	"Thomas Staudt" <tstaudt@de.ibm.com>,
	"Daniel P . Berrangé" <berrange@redhat.com>,
	"Kairui Song" <ryncsn@gmail.com>,
	dm-devel@redhat.com, "Jan Pazdziora" <jpazdziora@redhat.com>,
	"Pingfan Liu" <kernelfans@gmail.com>,
	"Baoquan He" <bhe@redhat.com>, "Dave Young" <dyoung@redhat.com>,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	"Dave Hansen" <dave.hansen@intel.com>,
	"Vitaly Kuznetsov" <vkuznets@redhat.com>,
	"Vivek Goyal" <vgoyal@redhat.com>,
	"Kees Cook" <keescook@chromium.org>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	"(open list:KERNEL HARDENING (not covered by other
	areas):Keyword:b__counted_byb)" <linux-hardening@vger.kernel.org>
Subject: Re: [PATCH v3 2/7] crash_dump: make dm crypt keys persist for the kdump kernel
Date: Fri, 26 Apr 2024 21:10:43 +0800	[thread overview]
Message-ID: <202404262003.qsWvGwZU-lkp@intel.com> (raw)
In-Reply-To: <20240425100434.198925-3-coxu@redhat.com>

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)

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/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?

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

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