From 09977dd095f3c655c99b9e1810a213f7eafa7364 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Thu, 25 Feb 2016 23:19:06 +0000 Subject: [PATCH] RT4347: Fix GCC unused-value warnings with HOST_c2l() The HOST_c2l() macro assigns the value to the specified variable, but also evaluates to the same value. Which we ignore, triggering a warning. To fix this, just cast it to void like we did in commit 08e553644 ("Fix some clang warnings.") for a bunch of other instances. Signed-off-by: Rich Salz Reviewed-by: Andy Polyakov --- crypto/md5/md5_dgst.c | 32 ++++++++++++++++---------------- crypto/sha/sha256.c | 34 +++++++++++++++++----------------- crypto/sha/sha_locl.h | 2 +- 3 files changed, 34 insertions(+), 34 deletions(-) diff --git a/crypto/md5/md5_dgst.c b/crypto/md5/md5_dgst.c index 18a3262d23..37b0d31160 100644 --- a/crypto/md5/md5_dgst.c +++ b/crypto/md5/md5_dgst.c @@ -102,52 +102,52 @@ void md5_block_data_order(MD5_CTX *c, const void *data_, size_t num) D = c->D; for (; num--;) { - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(0) = l; - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(1) = l; /* Round 0 */ R0(A, B, C, D, X(0), 7, 0xd76aa478L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(2) = l; R0(D, A, B, C, X(1), 12, 0xe8c7b756L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(3) = l; R0(C, D, A, B, X(2), 17, 0x242070dbL); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(4) = l; R0(B, C, D, A, X(3), 22, 0xc1bdceeeL); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(5) = l; R0(A, B, C, D, X(4), 7, 0xf57c0fafL); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(6) = l; R0(D, A, B, C, X(5), 12, 0x4787c62aL); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(7) = l; R0(C, D, A, B, X(6), 17, 0xa8304613L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(8) = l; R0(B, C, D, A, X(7), 22, 0xfd469501L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(9) = l; R0(A, B, C, D, X(8), 7, 0x698098d8L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(10) = l; R0(D, A, B, C, X(9), 12, 0x8b44f7afL); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(11) = l; R0(C, D, A, B, X(10), 17, 0xffff5bb1L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(12) = l; R0(B, C, D, A, X(11), 22, 0x895cd7beL); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(13) = l; R0(A, B, C, D, X(12), 7, 0x6b901122L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(14) = l; R0(D, A, B, C, X(13), 12, 0xfd987193L); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X(15) = l; R0(C, D, A, B, X(14), 17, 0xa679438eL); R0(B, C, D, A, X(15), 22, 0x49b40821L); diff --git a/crypto/sha/sha256.c b/crypto/sha/sha256.c index d7d33d524c..53b6054122 100644 --- a/crypto/sha/sha256.c +++ b/crypto/sha/sha256.c @@ -181,7 +181,7 @@ static void sha256_block_data_order(SHA256_CTX *ctx, const void *in, h = ctx->h[7]; for (i = 0; i < 16; i++) { - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[i] = l; T1 += h + Sigma1(e) + Ch(e, f, g) + K256[i]; T2 = Sigma0(a) + Maj(a, b, c); @@ -305,52 +305,52 @@ static void sha256_block_data_order(SHA256_CTX *ctx, const void *in, } else { SHA_LONG l; - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[0] = l; ROUND_00_15(0, a, b, c, d, e, f, g, h); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[1] = l; ROUND_00_15(1, h, a, b, c, d, e, f, g); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[2] = l; ROUND_00_15(2, g, h, a, b, c, d, e, f); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[3] = l; ROUND_00_15(3, f, g, h, a, b, c, d, e); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[4] = l; ROUND_00_15(4, e, f, g, h, a, b, c, d); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[5] = l; ROUND_00_15(5, d, e, f, g, h, a, b, c); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[6] = l; ROUND_00_15(6, c, d, e, f, g, h, a, b); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[7] = l; ROUND_00_15(7, b, c, d, e, f, g, h, a); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[8] = l; ROUND_00_15(8, a, b, c, d, e, f, g, h); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[9] = l; ROUND_00_15(9, h, a, b, c, d, e, f, g); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[10] = l; ROUND_00_15(10, g, h, a, b, c, d, e, f); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[11] = l; ROUND_00_15(11, f, g, h, a, b, c, d, e); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[12] = l; ROUND_00_15(12, e, f, g, h, a, b, c, d); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[13] = l; ROUND_00_15(13, d, e, f, g, h, a, b, c); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[14] = l; ROUND_00_15(14, c, d, e, f, g, h, a, b); - HOST_c2l(data, l); + (void)HOST_c2l(data, l); T1 = X[15] = l; ROUND_00_15(15, b, c, d, e, f, g, h, a); } diff --git a/crypto/sha/sha_locl.h b/crypto/sha/sha_locl.h index 87e69d8984..649cdeda09 100644 --- a/crypto/sha/sha_locl.h +++ b/crypto/sha/sha_locl.h @@ -430,7 +430,7 @@ static void HASH_BLOCK_DATA_ORDER(SHA_CTX *c, const void *p, size_t num) for (;;) { for (i = 0; i < 16; i++) { - HOST_c2l(data, l); + (void)HOST_c2l(data, l); X[i] = l; BODY_00_15(X[i]); }