diff --git a/cpucount.c b/cpucount.c
index 16982a8..20462da 100644
--- a/cpucount.c
+++ b/cpucount.c
@@ -109,7 +109,7 @@ static int parsecpuinfo()
 }
 #endif
 
-int cpucount()
+int cpucount(void)
 {
 	int ncpu;
 #ifdef _SC_NPROCESSORS_ONLN
diff --git a/cpucount.h b/cpucount.h
index daf79d8..1ba492b 100644
--- a/cpucount.h
+++ b/cpucount.h
@@ -1 +1 @@
-int cpucount();
+int cpucount(void);
diff --git a/keccak.c b/keccak.c
index 4f9df1b..8f172f3 100644
--- a/keccak.c
+++ b/keccak.c
@@ -22,7 +22,7 @@ static void KeccakF1600(void *s)
         /*ι*/ FOR(j,7) if (LFSR86540(&R)) XL(0,0,(u64)1<<((1<<j)-1));
     }
 }
-void Keccak(u32 r, u32 c, const u8 *in, u64 inLen, u8 sfx, u8 *out, u64 outLen)
+void Keccak(u32 r, const u8 *in, u64 inLen, u8 sfx, u8 *out, u64 outLen)
 {
     /*initialize*/ u8 s[200]; ui R=r/8; ui i,b=0; FOR(i,200) s[i]=0;
     /*absorb*/ while(inLen>0) { b=(inLen<R)?inLen:R; FOR(i,b) s[i]^=in[i]; in+=b; inLen-=b; if (b==R) { KeccakF1600(s); b=0; } }
diff --git a/keccak.h b/keccak.h
index 55c8bdb..6b4809d 100644
--- a/keccak.h
+++ b/keccak.h
@@ -1,14 +1,14 @@
 
-void Keccak(u32 r, u32 c, const u8 *in, u64 inLen, u8 sfx, u8 *out, u64 outLen);
+void Keccak(u32 r, const u8 *in, u64 inLen, u8 sfx, u8 *out, u64 outLen);
 
 #define FIPS202_SHA3_224_LEN 28
 #define FIPS202_SHA3_256_LEN 32
 #define FIPS202_SHA3_384_LEN 48
 #define FIPS202_SHA3_512_LEN 64
 
-static inline void FIPS202_SHAKE128(const u8 *in, u64 inLen, u8 *out, u64 outLen) { Keccak(1344, 256, in, inLen, 0x1F, out, outLen); }
-static inline void FIPS202_SHAKE256(const u8 *in, u64 inLen, u8 *out, u64 outLen) { Keccak(1088, 512, in, inLen, 0x1F, out, outLen); }
-static inline void FIPS202_SHA3_224(const u8 *in, u64 inLen, u8 *out) { Keccak(1152, 448, in, inLen, 0x06, out, 28); }
-static inline void FIPS202_SHA3_256(const u8 *in, u64 inLen, u8 *out) { Keccak(1088, 512, in, inLen, 0x06, out, 32); }
-static inline void FIPS202_SHA3_384(const u8 *in, u64 inLen, u8 *out) { Keccak(832, 768, in, inLen, 0x06, out, 48); }
-static inline void FIPS202_SHA3_512(const u8 *in, u64 inLen, u8 *out) { Keccak(576, 1024, in, inLen, 0x06, out, 64); }
+static inline void FIPS202_SHAKE128(const u8 *in, u64 inLen, u8 *out, u64 outLen) { Keccak(1344, in, inLen, 0x1F, out, outLen); }
+static inline void FIPS202_SHAKE256(const u8 *in, u64 inLen, u8 *out, u64 outLen) { Keccak(1088, in, inLen, 0x1F, out, outLen); }
+static inline void FIPS202_SHA3_224(const u8 *in, u64 inLen, u8 *out) { Keccak(1152, in, inLen, 0x06, out, 28); }
+static inline void FIPS202_SHA3_256(const u8 *in, u64 inLen, u8 *out) { Keccak(1088, in, inLen, 0x06, out, 32); }
+static inline void FIPS202_SHA3_384(const u8 *in, u64 inLen, u8 *out) { Keccak(832, in, inLen, 0x06, out, 48); }
+static inline void FIPS202_SHA3_512(const u8 *in, u64 inLen, u8 *out) { Keccak(576, in, inLen, 0x06, out, 64); }