staging: lustre: lnet: remove dead code and useless wrapper

After removing commented out code, ksocknal_csum() becomes a useless
wrapper for crc32_le(). Remove it, and instead call crc32_le() directly.

Fixes the following checkpatch warning:

WARNING: space prohibited before semicolon
Signed-off-by: Dmitriy Cherkasov <dmitriy@oss-tech.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h

@@ -519,17 +519,6 @@ extern struct ksock_proto ksocknal_protocol_v3x;
 #define CPU_MASK_NONE   0UL
 #endif
 
-static inline __u32 ksocknal_csum(__u32 crc, unsigned char const *p, size_t len)
-{
-#if 1
-	return crc32_le(crc, p, len);
-#else
-	while (len-- > 0)
-		crc = ((crc + 0x100) & ~0xff) | ((crc + *p++) & 0xff) ;
-	return crc;
-#endif
-}
-
 static inline int
 ksocknal_route_mask(void)
 {

drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c

@@ -201,9 +201,9 @@ ksocknal_lib_recv_iov(struct ksock_conn *conn)
 			if (fragnob > sum)
 				fragnob = sum;
 
-			conn->ksnc_rx_csum = ksocknal_csum(conn->ksnc_rx_csum,
-							   iov[i].iov_base,
-							   fragnob);
+			conn->ksnc_rx_csum = crc32_le(conn->ksnc_rx_csum,
+						      iov[i].iov_base,
+						      fragnob);
 		}
 		conn->ksnc_msg.ksm_csum = saved_csum;
 	}
@@ -243,8 +243,8 @@ ksocknal_lib_recv_kiov(struct ksock_conn *conn)
 			if (fragnob > sum)
 				fragnob = sum;
 
-			conn->ksnc_rx_csum = ksocknal_csum(conn->ksnc_rx_csum,
-							   base, fragnob);
+			conn->ksnc_rx_csum = crc32_le(conn->ksnc_rx_csum,
+						      base, fragnob);
 
 			kunmap(kiov[i].bv_page);
 		}
@@ -265,22 +265,22 @@ ksocknal_lib_csum_tx(struct ksock_tx *tx)
 
 	tx->tx_msg.ksm_csum = 0;
 
-	csum = ksocknal_csum(~0, tx->tx_iov[0].iov_base,
-			     tx->tx_iov[0].iov_len);
+	csum = crc32_le(~0, tx->tx_iov[0].iov_base,
+			tx->tx_iov[0].iov_len);
 
 	if (tx->tx_kiov) {
 		for (i = 0; i < tx->tx_nkiov; i++) {
 			base = kmap(tx->tx_kiov[i].bv_page) +
 			       tx->tx_kiov[i].bv_offset;
 
-			csum = ksocknal_csum(csum, base, tx->tx_kiov[i].bv_len);
+			csum = crc32_le(csum, base, tx->tx_kiov[i].bv_len);
 
 			kunmap(tx->tx_kiov[i].bv_page);
 		}
 	} else {
 		for (i = 1; i < tx->tx_niov; i++)
-			csum = ksocknal_csum(csum, tx->tx_iov[i].iov_base,
-					     tx->tx_iov[i].iov_len);
+			csum = crc32_le(csum, tx->tx_iov[i].iov_base,
+					tx->tx_iov[i].iov_len);
 	}
 
 	if (*ksocknal_tunables.ksnd_inject_csum_error) {