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

From: kernel test robot
Date: Sun Aug 14 2022 - 05:00:13 EST


Hi Jason,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: aea23e7c464bfdec04b52cf61edb62030e9e0d0a
commit: 2d16803c562ecc644803d42ba98a8e0aef9c014e crypto: blake2s - remove shash module
date: 9 weeks ago
config: i386-buildonly-randconfig-r002-20220808 (https://download.01.org/0day-ci/archive/20220814/202208141644.7UxLWkan-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-3) 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@xxxxxxxxx>

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@xxxxxxxxx>
:::::: CC: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

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