staging: lustre: libcfs: remove NULL comparisons in headers

Remove the NULL comparisions in the libcfs headers.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h

@@ -818,7 +818,7 @@ cfs_hash_djb2_hash(const void *key, size_t size, unsigned int mask)
 {
 	unsigned int i, hash = 5381;
 
-	LASSERT(key != NULL);
+	LASSERT(key);
 
 	for (i = 0; i < size; i++)
 		hash = hash * 33 + ((char *)key)[i];

drivers/staging/lustre/include/linux/libcfs/libcfs_private.h

@@ -96,7 +96,7 @@ do {									    \
 
 #define LIBCFS_ALLOC_POST(ptr, size)					    \
 do {									    \
-	if (unlikely((ptr) == NULL)) {					    \
+	if (!unlikely((ptr))) {						    \
 		CERROR("LNET: out of memory at %s:%d (tried to alloc '"	    \
 		       #ptr "' = %d)\n", __FILE__, __LINE__, (int)(size));  \
 	} else {							    \
@@ -147,7 +147,7 @@ do {									    \
 
 #define LIBCFS_FREE(ptr, size)					  \
 do {								    \
-	if (unlikely((ptr) == NULL)) {				  \
+	if (!unlikely((ptr))) {						\
 		CERROR("LIBCFS: free NULL '" #ptr "' (%d bytes) at "    \
 		       "%s:%d\n", (int)(size), __FILE__, __LINE__);	\
 		break;						  \