From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 23 Jul 2020 17:50:48 +1000 Subject: [PATCH] crypto: x86/curve25519 - Remove unused carry variables commit 054a5540fb8f7268e2c79e9deab4242db15c8cba upstream. The carry variables are assigned but never used, which upsets the compiler. This patch removes them. Signed-off-by: Herbert Xu Reviewed-by: Karthikeyan Bhargavan Acked-by: Jason A. Donenfeld Signed-off-by: Herbert Xu Signed-off-by: Jason A. Donenfeld --- arch/x86/crypto/curve25519-x86_64.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) --- a/arch/x86/crypto/curve25519-x86_64.c +++ b/arch/x86/crypto/curve25519-x86_64.c @@ -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];