remove return value from HOST_c2l/l2c macros

These macros and asm inlines simulate a function returning a value, but
nothing ever uses this return value. Remove the pseudo-returns and
(void) casts discarding the unused values.

This, maybe unsurprisingly, speeds things up a bit. It also removes the
GCC 4.9 warnings about unused values.

ok miod@ deraadt@

1 files changed, 4 insertions, 4 deletions

diff --git a/src/lib/libcrypto/sha/sha256.c b/src/lib/libcrypto/sha/sha256.c
index a4c259dab7..c5ab56852f 100644
--- a/src/lib/libcrypto/sha/sha256.c
+++ b/src/lib/libcrypto/sha/sha256.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: sha256.c,v 1.7 2014/07/10 22:45:58 jsing Exp $ */
+/* $OpenBSD: sha256.c,v 1.8 2014/08/18 19:11:48 bcook Exp $ */
 /* ====================================================================
  * Copyright (c) 2004 The OpenSSL Project.  All rights reserved
  * according to the OpenSSL license [found in ../../LICENSE].
@@ -90,17 +90,17 @@ int SHA224_Final (unsigned char *md, SHA256_CTX *c)
         switch ((c)->md_len)            \
         {   case SHA224_DIGEST_LENGTH:  \
                 for (nn=0;nn<SHA224_DIGEST_LENGTH/4;nn++)       \
-                {   ll=(c)->h[nn]; (void)HOST_l2c(ll,(s));   }  \
+                {   ll=(c)->h[nn]; HOST_l2c(ll,(s));   }        \
                 break;                  \
             case SHA256_DIGEST_LENGTH:  \
                 for (nn=0;nn<SHA256_DIGEST_LENGTH/4;nn++)       \
-                {   ll=(c)->h[nn]; (void)HOST_l2c(ll,(s));   }  \
+                {   ll=(c)->h[nn]; HOST_l2c(ll,(s));   }        \
                 break;                  \
             default:                    \
                 if ((c)->md_len > SHA256_DIGEST_LENGTH) \
                     return 0;                           \
                 for (nn=0;nn<(c)->md_len/4;nn++)                \
-                {   ll=(c)->h[nn]; (void)HOST_l2c(ll,(s));   }  \
+                {   ll=(c)->h[nn]; HOST_l2c(ll,(s));   }        \
                 break;                  \
         }                               \
         } while (0)