[PATCH] small sha512 cleanup

[Denis Vlasenko]

Looks like open-coded be_to_cpu.
GCC produces rather poor code for this.
be_to_cpu produces asm()s which are ~4 times shorter.

Compile-tested only.

I am not sure whether input can be 64bit-unaligned.
If it indeed can be, replace:

((u64*)(input))[I]  ->  get_unaligned( ((u64*)(input))+I )
--
vda
Replaces tons of GCC-produced horror code
with nice small one.
While we're at it, fix whitespace.

--- linux-2.6.9-rc3/crypto/sha512.c.org	Thu Sep 30 07:09:44 2004
+++ linux-2.6.9-rc3/crypto/sha512.c	Thu Sep 30 07:10:36 2004
@@ -104,27 +104,12 @@
 
 static inline void LOAD_OP(int I, u64 *W, const u8 *input)
 {
-        u64 t1  = input[(8*I)  ] & 0xff;
-        t1 <<= 8;
-        t1 |= input[(8*I)+1] & 0xff;
-        t1 <<= 8;
-        t1 |= input[(8*I)+2] & 0xff;
-        t1 <<= 8;
-        t1 |= input[(8*I)+3] & 0xff;
-        t1 <<= 8;
-        t1 |= input[(8*I)+4] & 0xff;
-        t1 <<= 8;
-        t1 |= input[(8*I)+5] & 0xff;
-        t1 <<= 8;
-        t1 |= input[(8*I)+6] & 0xff;
-        t1 <<= 8;
-        t1 |= input[(8*I)+7] & 0xff;
-        W[I] = t1;
+	W[I] = __be64_to_cpu( ((u64*)(input))[I] );
 }
 
 static inline void BLEND_OP(int I, u64 *W)
 {
-        W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
+	W[I] = s1(W[I-2]) + W[I-7] + s0(W[I-15]) + W[I-16];
 }
 
 static void