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crypto: x86/curve25519 - Remove unused carry variables

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The carry variables are assigned but never used, which upsets
the compiler.  This patch removes them.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Karthikeyan Bhargavan <karthik.bhargavan@gmail.com>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2020-07-23 17:50:48 +10:00
parent 190873a0ea
commit 054a5540fb
1 changed files with 2 additions and 4 deletions
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6
arch/x86/crypto/curve25519-x86_64.c
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@ -948,10 +948,8 @@ static void store_felem(u64 *b, u64 *f)
{
u64 f30 = f[3U];
u64 top_bit0 = f30 >> (u32)63U;
u64 carry0;
u64 f31;
u64 top_bit;
u64 carry;
u64 f0;
u64 f1;
u64 f2;
@ -970,11 +968,11 @@ static void store_felem(u64 *b, u64 *f)
u64 o2;
u64 o3;
f[3U] = f30 & (u64)0x7fffffffffffffffU;
carry0 = add_scalar(f, f, (u64)19U * top_bit0);
add_scalar(f, f, (u64)19U * top_bit0);
f31 = f[3U];
top_bit = f31 >> (u32)63U;
f[3U] = f31 & (u64)0x7fffffffffffffffU;
carry = add_scalar(f, f, (u64)19U * top_bit);
add_scalar(f, f, (u64)19U * top_bit);
f0 = f[0U];
f1 = f[1U];
f2 = f[2U];