net: neterion: s2io: Use linux/io-64-nonatomic-lo-hi.h

This patch replace the custom definition of writeq/read and use ones
defined in linux/io-64-nonatomic-lo-hi.h.
Signed-off-by: NCorentin Labbe <clabbe@baylibre.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/neterion/s2io.c

@@ -75,6 +75,7 @@
 #include <linux/tcp.h>
 #include <linux/uaccess.h>
 #include <linux/io.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
 #include <linux/slab.h>
 #include <linux/prefetch.h>
 #include <net/tcp.h>

drivers/net/ethernet/neterion/s2io.h

@@ -10,6 +10,7 @@
  * system is licensed under the GPL.
  * See the file COPYING in this distribution for more information.
  ************************************************************************/
+#include <linux/io-64-nonatomic-lo-hi.h>
 #ifndef _S2IO_H
 #define _S2IO_H
 
@@ -970,27 +971,6 @@ struct s2io_nic {
 #define RESET_ERROR 1
 #define CMD_ERROR   2
 
-/*  OS related system calls */
-#ifndef readq
-static inline u64 readq(void __iomem *addr)
-{
-	u64 ret = 0;
-	ret = readl(addr + 4);
-	ret <<= 32;
-	ret |= readl(addr);
-
-	return ret;
-}
-#endif
-
-#ifndef writeq
-static inline void writeq(u64 val, void __iomem *addr)
-{
-	writel((u32) (val), addr);
-	writel((u32) (val >> 32), (addr + 4));
-}
-#endif
-
 /*
  * Some registers have to be written in a particular order to
  * expect correct hardware operation. The macro SPECIAL_REG_WRITE