linux-kernel - [linux-stable-rc:linux-5.15.y 9182/9999] lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of 1096 bytes is larger than 1024 bytes

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Message-ID: <202209191132.J3LdusQD-lkp@intel.com>
Date:   Mon, 19 Sep 2022 11:06:15 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Jason A. Donenfeld" <zx2c4@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Sasha Levin <sashal@...nel.org>
Subject: [linux-stable-rc:linux-5.15.y 9182/9999]
 lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of 1096 bytes
 is larger than 1024 bytes

Hi Jason,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
head:   d766f744e4827dc41ef6c01403a96b7bb3938132
commit: 3dd33a09f5dc12ccb0902923c4c784eb0f8c7554 [9182/9999] crypto: blake2s - remove shash module
config: mips-randconfig-r032-20220919 (https://download.01.org/0day-ci/archive/20220919/202209191132.J3LdusQD-lkp@intel.com/config)
compiler: mipsel-linux-gcc (GCC) 12.1.0
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://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=3dd33a09f5dc12ccb0902923c4c784eb0f8c7554
        git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
        git fetch --no-tags linux-stable-rc linux-5.15.y
        git checkout 3dd33a09f5dc12ccb0902923c4c784eb0f8c7554
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash lib/crypto/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   lib/crypto/blake2s-selftest.c: In function 'blake2s_selftest':
>> lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of 1096 bytes is larger than 1024 bytes [-Wframe-larger-than=]
     632 | }
         | ^


vim +632 lib/crypto/blake2s-selftest.c

3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  614  
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  615  		memcpy(&state1, &state, sizeof(state1));
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  616  		blake2s_compress(&state1, blocks, 1, BLAKE2S_BLOCK_SIZE);
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  617  		for (l = 1; l < TEST_ALIGNMENT; ++l) {
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  618  			memcpy(unaligned_block + l, blocks,
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  619  			       BLAKE2S_BLOCK_SIZE);
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  620  			memcpy(&state2, &state, sizeof(state2));
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  621  			blake2s_compress(&state2, unaligned_block + l, 1,
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  622  					 BLAKE2S_BLOCK_SIZE);
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  623  			if (memcmp(&state1, &state2, sizeof(state1))) {
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  624  				pr_err("blake2s random compress align %d self-test %d: FAIL\n",
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  625  				       l, i + 1);
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  626  				success = false;
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  627  			}
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  628  		}
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  629  	}
3dd33a09f5dc12 Jason A. Donenfeld 2022-05-28  630  
66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08  631  	return success;
66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 @632  }

:::::: The code at line 632 was first introduced by commit
:::::: 66d7fb94e4ffe5acc589e0b2b4710aecc1f07a28 crypto: blake2s - generic C library implementation and selftest

:::::: TO: Jason A. Donenfeld <Jason@...c4.com>
:::::: CC: Herbert Xu <herbert@...dor.apana.org.au>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp