From: kernel test robot <lkp@intel.com>
To: Kees Cook <keescook@chromium.org>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Linux Memory Management List <linux-mm@kvack.org>
Subject: lib/crypto/curve25519-hacl64.c:601:1: warning: the frame size of 3168 bytes is larger than 2048 bytes
Date: Thu, 19 Nov 2020 12:36:13 +0800 [thread overview]
Message-ID: <202011191208.csAQP6ac-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c2e7554e1b85935d962127efa3c2a76483b0b3b6
commit: 8d58f222e85f01da0c0e1fc1e77986c86de889e2 ubsan: disable UBSAN_ALIGNMENT under COMPILE_TEST
date: 7 months ago
config: arm64-randconfig-r024-20201119 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
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/torvalds/linux.git/commit/?id=8d58f222e85f01da0c0e1fc1e77986c86de889e2
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 8d58f222e85f01da0c0e1fc1e77986c86de889e2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
lib/crypto/curve25519-hacl64.c: In function 'ladder_cmult.constprop':
>> lib/crypto/curve25519-hacl64.c:601:1: warning: the frame size of 3168 bytes is larger than 2048 bytes [-Wframe-larger-than=]
601 | }
| ^
lib/crypto/curve25519-hacl64.c: In function 'curve25519_generic':
lib/crypto/curve25519-hacl64.c:788:1: warning: the frame size of 2704 bytes is larger than 2048 bytes [-Wframe-larger-than=]
788 | }
| ^
vim +601 lib/crypto/curve25519-hacl64.c
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 589
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 590 static void ladder_cmult(u64 *result, u8 *n1, u64 *q)
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 591 {
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 592 u64 point_buf[40] = { 0 };
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 593 u64 *nq = point_buf;
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 594 u64 *nqpq = point_buf + 10;
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 595 u64 *nq2 = point_buf + 20;
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 596 u64 *nqpq2 = point_buf + 30;
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 597 point_copy(nqpq, q);
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 598 nq[0] = 1;
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 599 ladder_bigloop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, 32);
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 600 point_copy(result, nq);
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 @601 }
0ed42a6f431e930 Jason A. Donenfeld 2019-11-08 602
:::::: The code at line 601 was first introduced by commit
:::::: 0ed42a6f431e930b2e8fae21955406e09fe75d70 crypto: curve25519 - generic C library implementations
:::::: TO: Jason A. Donenfeld <Jason@zx2c4.com>
:::::: CC: Herbert Xu <herbert@gondor.apana.org.au>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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reply other threads:[~2020-11-19 4:36 UTC|newest]
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