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Donenfeld" Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, 0day robot Subject: lib/crypto/blake2s-selftest.c:548:13: warning: stack frame size (1128) exceeds limit (1024) in 'blake2s_selftest' Message-ID: <202205282100.bU9SnP9m-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://github.com/intel-lab-lkp/linux/commits/UPDATE-20220528-180939/Jason-A-Donenfeld/crypto-blake2s-remove-shash-module/20220526-172214 head: 54e31fb223170c2e7f3a6c3b1f3b438e32788f43 commit: 54e31fb223170c2e7f3a6c3b1f3b438e32788f43 crypto: blake2s - remove shash module date: 3 hours ago config: hexagon-randconfig-r041-20220527 (https://download.01.org/0day-ci/archive/20220528/202205282100.bU9SnP9m-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0fbe3f3f486e01448121f7931a4ca29fac1504ab) 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/intel-lab-lkp/linux/commit/54e31fb223170c2e7f3a6c3b1f3b438e32788f43 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review UPDATE-20220528-180939/Jason-A-Donenfeld/crypto-blake2s-remove-shash-module/20220526-172214 git checkout 54e31fb223170c2e7f3a6c3b1f3b438e32788f43 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash lib/crypto/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> lib/crypto/blake2s-selftest.c:548:13: warning: stack frame size (1128) exceeds limit (1024) in 'blake2s_selftest' [-Wframe-larger-than] bool __init blake2s_selftest(void) ^ 1 warning generated. vim +/blake2s_selftest +548 lib/crypto/blake2s-selftest.c 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 547 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 @548 bool __init blake2s_selftest(void) 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 549 { 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 550 u8 key[BLAKE2S_KEY_SIZE]; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 551 u8 buf[ARRAY_SIZE(blake2s_testvecs)]; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 552 u8 hash[BLAKE2S_HASH_SIZE]; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 553 struct blake2s_state state; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 554 bool success = true; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 555 int i, l; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 556 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 557 key[0] = key[1] = 1; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 558 for (i = 2; i < sizeof(key); ++i) 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 559 key[i] = key[i - 2] + key[i - 1]; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 560 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 561 for (i = 0; i < sizeof(buf); ++i) 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 562 buf[i] = (u8)i; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 563 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 564 for (i = l = 0; i < ARRAY_SIZE(blake2s_testvecs); l = (l + 37) % ++i) { 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 565 int outlen = 1 + i % BLAKE2S_HASH_SIZE; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 566 int keylen = (13 * i) % (BLAKE2S_KEY_SIZE + 1); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 567 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 568 blake2s(hash, buf, key + BLAKE2S_KEY_SIZE - keylen, outlen, i, 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 569 keylen); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 570 if (memcmp(hash, blake2s_testvecs[i], outlen)) { 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 571 pr_err("blake2s self-test %d: FAIL\n", i + 1); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 572 success = false; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 573 } 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 574 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 575 if (!keylen) 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 576 blake2s_init(&state, outlen); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 577 else 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 578 blake2s_init_key(&state, outlen, 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 579 key + BLAKE2S_KEY_SIZE - keylen, 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 580 keylen); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 581 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 582 blake2s_update(&state, buf, l); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 583 blake2s_update(&state, buf + l, i - l); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 584 blake2s_final(&state, hash); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 585 if (memcmp(hash, blake2s_testvecs[i], outlen)) { 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 586 pr_err("blake2s init/update/final self-test %d: FAIL\n", 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 587 i + 1); 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 588 success = false; 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 589 } 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 590 } 66d7fb94e4ffe5 Jason A. Donenfeld 2019-11-08 591 54e31fb223170c Jason A. Donenfeld 2022-05-28 592 for (i = 0; i < 100; ++i) { 54e31fb223170c Jason A. Donenfeld 2022-05-28 593 u8 unaligned_block[BLAKE2S_BLOCK_SIZE + sizeof(long) - 1] 54e31fb223170c Jason A. Donenfeld 2022-05-28 594 __aligned(sizeof(long)); 54e31fb223170c Jason A. Donenfeld 2022-05-28 595 u8 blocks[BLAKE2S_BLOCK_SIZE * 4]; 54e31fb223170c Jason A. Donenfeld 2022-05-28 596 struct blake2s_state state1, state2; 54e31fb223170c Jason A. Donenfeld 2022-05-28 597 54e31fb223170c Jason A. Donenfeld 2022-05-28 598 get_random_bytes(blocks, sizeof(blocks)); 54e31fb223170c Jason A. Donenfeld 2022-05-28 599 get_random_bytes(&state, sizeof(state)); 54e31fb223170c Jason A. Donenfeld 2022-05-28 600 -- 0-DAY CI Kernel Test Service https://01.org/lkp