linux-kernel - Re: [PATCH v10 10/25] crypto: iaa - Rearchitect the iaa_crypto driver to be usable by zswap and zram.

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Message-ID: <202507050102.v288TUAS-lkp@intel.com>
Date: Fri, 4 Jul 2025 23:56:53 +0800
From: kernel test robot <lkp@...el.com>
To: Kanchana P Sridhar <kanchana.p.sridhar@...el.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	hannes@...xchg.org, yosry.ahmed@...ux.dev, nphamcs@...il.com,
	chengming.zhou@...ux.dev, usamaarif642@...il.com,
	ryan.roberts@....com, 21cnbao@...il.com,
	ying.huang@...ux.alibaba.com, akpm@...ux-foundation.org,
	senozhatsky@...omium.org, linux-crypto@...r.kernel.org,
	herbert@...dor.apana.org.au, davem@...emloft.net,
	clabbe@...libre.com, ardb@...nel.org, ebiggers@...gle.com,
	surenb@...gle.com, kristen.c.accardi@...el.com,
	vinicius.gomes@...el.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	wajdi.k.feghali@...el.com, vinodh.gopal@...el.com,
	kanchana.p.sridhar@...el.com
Subject: Re: [PATCH v10 10/25] crypto: iaa - Rearchitect the iaa_crypto
 driver to be usable by zswap and zram.

Hi Kanchana,

kernel test robot noticed the following build warnings:

[auto build test WARNING on herbert-cryptodev-2.6/master]
[also build test WARNING on herbert-crypto-2.6/master akpm-mm/mm-everything linus/master v6.16-rc4 next-20250704]
[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/Kanchana-P-Sridhar/crypto-iaa-Reorganize-the-iaa_crypto-driver-code/20250704-122613
base:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
patch link:    https://lore.kernel.org/r/20250704042323.10318-11-kanchana.p.sridhar%40intel.com
patch subject: [PATCH v10 10/25] crypto: iaa - Rearchitect the iaa_crypto driver to be usable by zswap and zram.
config: x86_64-randconfig-004-20250704 (https://download.01.org/0day-ci/archive/20250705/202507050102.v288TUAS-lkp@intel.com/config)
compiler: clang version 20.1.7 (https://github.com/llvm/llvm-project 6146a88f60492b520a36f8f8f3231e15f3cc6082)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250705/202507050102.v288TUAS-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507050102.v288TUAS-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/crypto/intel/iaa/iaa_crypto_main.c:2347:30: warning: variable 'ctx' set but not used [-Wunused-but-set-variable]
    2347 |         struct iaa_compression_ctx *ctx = crypto_tfm_ctx(tfm);
         |                                     ^
   1 warning generated.

vim +/ctx +2347 drivers/crypto/intel/iaa/iaa_crypto_main.c

4d9d295bdce222 Kanchana P Sridhar 2025-07-03  2343  
2ec6761df889fd Tom Zanussi        2023-12-05  2344  static int iaa_comp_init_fixed(struct crypto_acomp *acomp_tfm)
2ec6761df889fd Tom Zanussi        2023-12-05  2345  {
2ec6761df889fd Tom Zanussi        2023-12-05  2346  	struct crypto_tfm *tfm = crypto_acomp_tfm(acomp_tfm);
2ec6761df889fd Tom Zanussi        2023-12-05 @2347  	struct iaa_compression_ctx *ctx = crypto_tfm_ctx(tfm);
2ec6761df889fd Tom Zanussi        2023-12-05  2348  
4d9d295bdce222 Kanchana P Sridhar 2025-07-03  2349  	ctx = iaa_ctx[IAA_MODE_FIXED];
0ece0d4e1175a0 Kanchana P Sridhar 2025-07-03  2350  
2ec6761df889fd Tom Zanussi        2023-12-05  2351  	return 0;
2ec6761df889fd Tom Zanussi        2023-12-05  2352  }
2ec6761df889fd Tom Zanussi        2023-12-05  2353  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki