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crypto: lib/mpi - Use swap() in mpi_ec_mul_point()

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Use existing swap() function rather than duplicating its implementation.

./lib/crypto/mpi/ec.c:1291:20-21: WARNING opportunity for swap().
./lib/crypto/mpi/ec.c:1292:20-21: WARNING opportunity for swap().

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9328
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jiapeng Chong 2024-06-14 11:09:11 +08:00 committed by Herbert Xu
parent 5ca95a9079
commit f0da7a231c
1 changed files with 2 additions and 4 deletions
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6
lib/crypto/mpi/ec.c
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@ -1285,14 +1285,12 @@ void mpi_ec_mul_point(MPI_POINT result,
sum = &p2_;
for (j = nbits-1; j >= 0; j--) {
MPI_POINT t;
sw = mpi_test_bit(scalar, j);
point_swap_cond(q1, q2, sw, ctx);
montgomery_ladder(prd, sum, q1, q2, point->x, ctx);
point_swap_cond(prd, sum, sw, ctx);
t = q1; q1 = prd; prd = t;
t = q2; q2 = sum; sum = t;
swap(q1, prd);
swap(q2, sum);
}
mpi_clear(result->y);