linux-kernel - lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of 1120 bytes is larger than 1024 bytes

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Message-ID: <202211072109.qvrnjNKo-lkp@intel.com>
Date:   Mon, 7 Nov 2022 21:18:05 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Jason A. Donenfeld" <zx2c4@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Herbert Xu <herbert@...dor.apana.org.au>
Subject: lib/crypto/blake2s-selftest.c:632:1: warning: the frame size of 1120
 bytes is larger than 1024 bytes

Hi Jason,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f0c4d9fc9cc9462659728d168387191387e903cc
commit: 2d16803c562ecc644803d42ba98a8e0aef9c014e crypto: blake2s - remove shash module
date:   5 months ago
config: i386-buildonly-randconfig-r006-20221107
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2d16803c562ecc644803d42ba98a8e0aef9c014e
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 2d16803c562ecc644803d42ba98a8e0aef9c014e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 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 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
     632 | }
         | ^


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

2d16803c562ecc Jason A. Donenfeld 2022-05-28  614  
2d16803c562ecc Jason A. Donenfeld 2022-05-28  615  		memcpy(&state1, &state, sizeof(state1));
2d16803c562ecc Jason A. Donenfeld 2022-05-28  616  		blake2s_compress(&state1, blocks, 1, BLAKE2S_BLOCK_SIZE);
2d16803c562ecc Jason A. Donenfeld 2022-05-28  617  		for (l = 1; l < TEST_ALIGNMENT; ++l) {
2d16803c562ecc Jason A. Donenfeld 2022-05-28  618  			memcpy(unaligned_block + l, blocks,
2d16803c562ecc Jason A. Donenfeld 2022-05-28  619  			       BLAKE2S_BLOCK_SIZE);
2d16803c562ecc Jason A. Donenfeld 2022-05-28  620  			memcpy(&state2, &state, sizeof(state2));
2d16803c562ecc Jason A. Donenfeld 2022-05-28  621  			blake2s_compress(&state2, unaligned_block + l, 1,
2d16803c562ecc Jason A. Donenfeld 2022-05-28  622  					 BLAKE2S_BLOCK_SIZE);
2d16803c562ecc Jason A. Donenfeld 2022-05-28  623  			if (memcmp(&state1, &state2, sizeof(state1))) {
2d16803c562ecc Jason A. Donenfeld 2022-05-28  624  				pr_err("blake2s random compress align %d self-test %d: FAIL\n",
2d16803c562ecc Jason A. Donenfeld 2022-05-28  625  				       l, i + 1);
2d16803c562ecc Jason A. Donenfeld 2022-05-28  626  				success = false;
2d16803c562ecc Jason A. Donenfeld 2022-05-28  627  			}
2d16803c562ecc Jason A. Donenfeld 2022-05-28  628  		}
2d16803c562ecc Jason A. Donenfeld 2022-05-28  629  	}
2d16803c562ecc 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>

-- 
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