Messages in this thread | | | Date | Sun, 1 Dec 2019 05:54:53 +0800 | From | kbuild test robot <> | Subject | crypto/blake2b_generic.c:245:1: warning: the frame size of 1220 bytes is larger than 1024 bytes |
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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
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