9:01 a.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 9317f948b0b188b8d2fded75957e6d42c460df1b
commit: bd06731ef42b0b0fb321a06c182ffd83029f69f5 [12693/13311] ubsan: enable for
all*config builds
config: powerpc-randconfig-r006-20201216 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
a29ecca7819a6ed4250d3689b12b1f664bb790d7)
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
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi...
git remote add linux-next
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout bd06731ef42b0b0fb321a06c182ffd83029f69f5
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
> lib/crypto/blake2s-generic.c:40:6: warning: stack frame size of
4288 bytes in function 'blake2s_compress_generic' [-Wframe-larger-than=]
void blake2s_compress_generic(struct blake2s_state *state,const u8 *block,
^
1 warning generated.
vim +/blake2s_compress_generic +40 lib/crypto/blake2s-generic.c
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 39
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 @40 void blake2s_compress_generic(struct
blake2s_state *state,const u8 *block,
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 41 size_t nblocks, const u32
inc)
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 42 {
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 43 u32 m[16];
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 44 u32 v[16];
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 45 int i;
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 46
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 47 WARN_ON(IS_ENABLED(DEBUG) &&
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 48 (nblocks > 1 && inc !=
BLAKE2S_BLOCK_SIZE));
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 49
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 50 while (nblocks > 0) {
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 51 blake2s_increment_counter(state,
inc);
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 52 memcpy(m, block,
BLAKE2S_BLOCK_SIZE);
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 53 le32_to_cpu_array(m, ARRAY_SIZE(m));
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 54 memcpy(v, state->h, 32);
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 55 v[ 8] = BLAKE2S_IV0;
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 56 v[ 9] = BLAKE2S_IV1;
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 57 v[10] = BLAKE2S_IV2;
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 58 v[11] = BLAKE2S_IV3;
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 59 v[12] = BLAKE2S_IV4 ^
state->t[0];
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 60 v[13] = BLAKE2S_IV5 ^
state->t[1];
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 61 v[14] = BLAKE2S_IV6 ^
state->f[0];
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 62 v[15] = BLAKE2S_IV7 ^
state->f[1];
66d7fb94e4ffe5a Jason A. Donenfeld 2019-11-08 63
:::::: The code at line 40 was first introduced by commit
:::::: 66d7fb94e4ffe5acc589e0b2b4710aecc1f07a28 crypto: blake2s - generic C library
implementation and selftest
:::::: TO: Jason A. Donenfeld <Jason(a)zx2c4.com>
:::::: CC: Herbert Xu <herbert(a)gondor.apana.org.au>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org