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tls: P256: do not open-code copying of struct variables

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function                                             old     new   delta
sp_256_ecc_mulmod_8                                  536     534      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2021-11-27 15:00:14 +01:00
parent 446d136109
commit 26c8522522
1 changed files with 2 additions and 2 deletions
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4
networking/tls_sp_c32.c
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@ -1361,13 +1361,13 @@ static void sp_256_ecc_mulmod_8(sp_point* r, const sp_point* g, const sp_digit*
dump_512("t[1].y %s\n", t[1].y); dump_512("t[1].y %s\n", t[1].y);
dump_512("t[1].z %s\n", t[1].z); dump_512("t[1].z %s\n", t[1].z);
dbg("t[2] = t[%d]\n", y); dbg("t[2] = t[%d]\n", y);
memcpy(&t[2], &t[y], sizeof(sp_point)); t[2] = t[y]; /* struct copy */
dbg("t[2] *= 2\n"); dbg("t[2] *= 2\n");
sp_256_proj_point_dbl_8(&t[2], &t[2]); sp_256_proj_point_dbl_8(&t[2], &t[2]);
dump_512("t[2].x %s\n", t[2].x); dump_512("t[2].x %s\n", t[2].x);
dump_512("t[2].y %s\n", t[2].y); dump_512("t[2].y %s\n", t[2].y);
dump_512("t[2].z %s\n", t[2].z); dump_512("t[2].z %s\n", t[2].z);
memcpy(&t[y], &t[2], sizeof(sp_point)); t[y] = t[2]; /* struct copy */
n <<= 1; n <<= 1;
c--; c--;