Re: [PATCH 3/4] dm crypt: switch to EBOIV crypto API template

kernel test robot
2020-10-26T18:19:29Z

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Hi Gilad,

I love your patch! Perhaps something to improve:

[auto build test WARNING on cryptodev/master]
[also build test WARNING on crypto/master]
[cannot apply to dm/for-next v5.10-rc1 next-20201026]
[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]

url: https://github.com/0day-ci/linux/commits/Gilad-Ben-Yossef/crypto-switch-to-crypto-API-for-EBOIV-generation/20201026-210817
base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
config: xtensa-allyesconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/740a3c74568afb5bb9e1383d1e7597bf4c1cfd9d
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Gilad-Ben-Yossef/crypto-switch-to-crypto-API-for-EBOIV-generation/20201026-210817
git checkout 740a3c74568afb5bb9e1383d1e7597bf4c1cfd9d
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

drivers/md/dm-crypt.c: In function 'crypt_iv_elephant_ctr':
>> drivers/md/dm-crypt.c:745:6: warning: variable 'r' set but not used [-Wunused-but-set-variable]
745 | int r;
| ^

vim +/r +745 drivers/md/dm-crypt.c

bbb1658461ac85e Milan Broz 2020-01-03 740
bbb1658461ac85e Milan Broz 2020-01-03 741 static int crypt_iv_elephant_ctr(struct crypt_config *cc, struct dm_target *ti,
bbb1658461ac85e Milan Broz 2020-01-03 742 const char *opts)
bbb1658461ac85e Milan Broz 2020-01-03 743 {
bbb1658461ac85e Milan Broz 2020-01-03 744 struct iv_elephant_private *elephant = &cc->iv_gen_private.elephant;
bbb1658461ac85e Milan Broz 2020-01-03 @745 int r;
bbb1658461ac85e Milan Broz 2020-01-03 746
bbb1658461ac85e Milan Broz 2020-01-03 747 elephant->tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0);
bbb1658461ac85e Milan Broz 2020-01-03 748 if (IS_ERR(elephant->tfm)) {
bbb1658461ac85e Milan Broz 2020-01-03 749 r = PTR_ERR(elephant->tfm);
bbb1658461ac85e Milan Broz 2020-01-03 750 elephant->tfm = NULL;
bbb1658461ac85e Milan Broz 2020-01-03 751 }
bbb1658461ac85e Milan Broz 2020-01-03 752
740a3c74568afb5 Gilad Ben-Yossef 2020-10-26 753 return 0;
bbb1658461ac85e Milan Broz 2020-01-03 754 }
bbb1658461ac85e Milan Broz 2020-01-03 755

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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