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Subjectcrypto/blake2b_generic.c:245:1: warning: the frame size of 1220 bytes is larger than 1024 bytes
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 32ef9553635ab1236c33951a8bd9b5af1c3b1646
commit: 91d689337fe8b7703608a2ec39aae700b99f3933 crypto: blake2b - add blake2b generic implementation
date: 4 weeks ago
config: arc-randconfig-a0031-20191201 (attached as .config)
compiler: arc-elf-gcc (GCC) 7.4.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 91d689337fe8b7703608a2ec39aae700b99f3933
# save the attached .config to linux build tree
GCC_VERSION=7.4.0 make.cross ARCH=arc

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

crypto/blake2b_generic.c: In function 'blake2b_compress':
>> crypto/blake2b_generic.c:245:1: warning: the frame size of 1220 bytes is larger than 1024 bytes [-Wframe-larger-than=]
}
^

vim +245 crypto/blake2b_generic.c

183
184 #define G(r,i,a,b,c,d) \
185 do { \
186 a = a + b + m[blake2b_sigma[r][2*i+0]]; \
187 d = ror64(d ^ a, 32); \
188 c = c + d; \
189 b = ror64(b ^ c, 24); \
190 a = a + b + m[blake2b_sigma[r][2*i+1]]; \
191 d = ror64(d ^ a, 16); \
192 c = c + d; \
193 b = ror64(b ^ c, 63); \
194 } while (0)
195
196 #define ROUND(r) \
197 do { \
198 G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \
199 G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \
200 G(r,2,v[ 2],v[ 6],v[10],v[14]); \
201 G(r,3,v[ 3],v[ 7],v[11],v[15]); \
202 G(r,4,v[ 0],v[ 5],v[10],v[15]); \
203 G(r,5,v[ 1],v[ 6],v[11],v[12]); \
204 G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \
205 G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \
206 } while (0)
207
208 static void blake2b_compress(struct blake2b_state *S,
209 const u8 block[BLAKE2B_BLOCKBYTES])
210 {
211 u64 m[16];
212 u64 v[16];
213 size_t i;
214
215 for (i = 0; i < 16; ++i)
216 m[i] = get_unaligned_le64(block + i * sizeof(m[i]));
217
218 for (i = 0; i < 8; ++i)
219 v[i] = S->h[i];
220
221 v[ 8] = blake2b_IV[0];
222 v[ 9] = blake2b_IV[1];
223 v[10] = blake2b_IV[2];
224 v[11] = blake2b_IV[3];
225 v[12] = blake2b_IV[4] ^ S->t[0];
226 v[13] = blake2b_IV[5] ^ S->t[1];
227 v[14] = blake2b_IV[6] ^ S->f[0];
228 v[15] = blake2b_IV[7] ^ S->f[1];
229
230 ROUND(0);
231 ROUND(1);
232 ROUND(2);
233 ROUND(3);
234 ROUND(4);
235 ROUND(5);
236 ROUND(6);
237 ROUND(7);
238 ROUND(8);
239 ROUND(9);
240 ROUND(10);
241 ROUND(11);
242
243 for (i = 0; i < 8; ++i)
244 S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
> 245 }
246

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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