From 70c71606190e9115e5f8363bfcd164c582eb314a Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Sun, 22 May 2011 16:47:17 -0400
Subject: [PATCH] Add appropriate <linux/prefetch.h> include for prefetch users

After discovering that wide use of prefetch on modern CPUs
could be a net loss instead of a win, net drivers which were
relying on the implicit inclusion of prefetch.h via the list
headers showed up in the resulting cleanup fallout.  Give
them an explicit include via the following $0.02 script.

 =========================================
 #!/bin/bash
 MANUAL=""
 for i in `git grep -l 'prefetch(.*)' .` ; do
 	grep -q '<linux/prefetch.h>' $i
 	if [ $? = 0 ] ; then
 		continue
 	fi

 	(	echo '?^#include <linux/?a'
 		echo '#include <linux/prefetch.h>'
 		echo .
 		echo w
 		echo q
 	) | ed -s $i > /dev/null 2>&1
 	if [ $? != 0 ]; then
 		echo $i needs manual fixup
 		MANUAL="$i $MANUAL"
 	fi
 done
 echo ------------------- 8\<----------------------
 echo vi $MANUAL
 =========================================

Signed-off-by: Paul <paul.gortmaker@windriver.com>
[ Fixed up some incorrect #include placements, and added some
  non-network drivers and the fib_trie.c case    - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/block/drbd/drbd_int.h       | 1 +
 drivers/dma/ioat/dma.c              | 1 +
 drivers/dma/ioat/dma_v2.c           | 1 +
 drivers/dma/ioat/dma_v3.c           | 1 +
 drivers/infiniband/hw/amso1100/c2.c | 1 +
 drivers/net/benet/be_main.c         | 1 +
 drivers/net/bna/bnad.c              | 1 +
 drivers/net/bnx2x/bnx2x_cmn.c       | 1 +
 drivers/net/chelsio/sge.c           | 1 +
 drivers/net/cnic.c                  | 1 +
 drivers/net/cxgb3/sge.c             | 1 +
 drivers/net/cxgb4/sge.c             | 1 +
 drivers/net/cxgb4vf/sge.c           | 1 +
 drivers/net/e1000/e1000_main.c      | 1 +
 drivers/net/e1000e/netdev.c         | 1 +
 drivers/net/ehea/ehea_qmr.h         | 1 +
 drivers/net/enic/enic_main.c        | 1 +
 drivers/net/forcedeth.c             | 1 +
 drivers/net/igb/igb_main.c          | 1 +
 drivers/net/igbvf/netdev.c          | 1 +
 drivers/net/ixgb/ixgb_main.c        | 1 +
 drivers/net/ixgbe/ixgbe_main.c      | 1 +
 drivers/net/ixgbevf/ixgbevf_main.c  | 1 +
 drivers/net/myri10ge/myri10ge.c     | 1 +
 drivers/net/pasemi_mac.c            | 1 +
 drivers/net/pch_gbe/pch_gbe_main.c  | 1 +
 drivers/net/qla3xxx.c               | 1 +
 drivers/net/qlge/qlge_main.c        | 1 +
 drivers/net/r8169.c                 | 1 +
 drivers/net/s2io.c                  | 1 +
 drivers/net/sb1250-mac.c            | 1 +
 drivers/net/sfc/rx.c                | 1 +
 drivers/net/skge.c                  | 1 +
 drivers/net/stmmac/stmmac_main.c    | 1 +
 drivers/net/tc35815.c               | 1 +
 drivers/net/vxge/vxge-main.c        | 1 +
 drivers/net/vxge/vxge-traffic.c     | 1 +
 net/ipv4/fib_trie.c                 | 1 +
 38 files changed, 38 insertions(+)

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index b2699bb2e530..d871b14ed5a1 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -42,6 +42,7 @@
 #include <linux/genhd.h>
 #include <net/tcp.h>
 #include <linux/lru_cache.h>
+#include <linux/prefetch.h>
 
 #ifdef __CHECKER__
 # define __protected_by(x)       __attribute__((require_context(x,1,999,"rdwr")))
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index c9213ead4a26..a4d6cb0c0343 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -34,6 +34,7 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/workqueue.h>
+#include <linux/prefetch.h>
 #include <linux/i7300_idle.h>
 #include "dma.h"
 #include "registers.h"
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index effd140fc042..f4a51d4d0349 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -34,6 +34,7 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/workqueue.h>
+#include <linux/prefetch.h>
 #include <linux/i7300_idle.h>
 #include "dma.h"
 #include "dma_v2.h"
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index d0f499098479..d845dc4b7103 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -60,6 +60,7 @@
 #include <linux/gfp.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
+#include <linux/prefetch.h>
 #include "registers.h"
 #include "hw.h"
 #include "dma.h"
diff --git a/drivers/infiniband/hw/amso1100/c2.c b/drivers/infiniband/hw/amso1100/c2.c
index dc85d777578e..0cfc455630d0 100644
--- a/drivers/infiniband/hw/amso1100/c2.c
+++ b/drivers/infiniband/hw/amso1100/c2.c
@@ -47,6 +47,7 @@
 #include <linux/init.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/prefetch.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 4b5e0ed49ed8..a485f7fdaf37 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -15,6 +15,7 @@
  * Costa Mesa, CA 92626
  */
 
+#include <linux/prefetch.h>
 #include "be.h"
 #include "be_cmds.h"
 #include <asm/div64.h>
diff --git a/drivers/net/bna/bnad.c b/drivers/net/bna/bnad.c
index e588511f47fb..7d25a97d33f6 100644
--- a/drivers/net/bna/bnad.c
+++ b/drivers/net/bna/bnad.c
@@ -23,6 +23,7 @@
 #include <linux/if_vlan.h>
 #include <linux/if_ether.h>
 #include <linux/ip.h>
+#include <linux/prefetch.h>
 
 #include "bnad.h"
 #include "bna.h"
diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c
index ca2bbc0e5d48..64d01e728a9d 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/bnx2x/bnx2x_cmn.c
@@ -21,6 +21,7 @@
 #include <net/ipv6.h>
 #include <net/ip6_checksum.h>
 #include <linux/firmware.h>
+#include <linux/prefetch.h>
 #include "bnx2x_cmn.h"
 
 #include "bnx2x_init.h"
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index b948ea737550..58380d240619 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -54,6 +54,7 @@
 #include <linux/in.h>
 #include <linux/if_arp.h>
 #include <linux/slab.h>
+#include <linux/prefetch.h>
 
 #include "cpl5_cmd.h"
 #include "sge.h"
diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index cde59b4e5ef8..11a92afdf982 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -27,6 +27,7 @@
 #include <linux/delay.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
+#include <linux/prefetch.h>
 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
 #define BCM_VLAN 1
 #endif
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index cba1401377ab..3f562ba2f0c9 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -37,6 +37,7 @@
 #include <linux/tcp.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/prefetch.h>
 #include <net/arp.h>
 #include "common.h"
 #include "regs.h"
diff --git a/drivers/net/cxgb4/sge.c b/drivers/net/cxgb4/sge.c
index 75a4b0fa19ee..56adf448b9fe 100644
--- a/drivers/net/cxgb4/sge.c
+++ b/drivers/net/cxgb4/sge.c
@@ -39,6 +39,7 @@
 #include <linux/ip.h>
 #include <linux/dma-mapping.h>
 #include <linux/jiffies.h>
+#include <linux/prefetch.h>
 #include <net/ipv6.h>
 #include <net/tcp.h>
 #include "cxgb4.h"
diff --git a/drivers/net/cxgb4vf/sge.c b/drivers/net/cxgb4vf/sge.c
index 5182960e29fd..5fd75fdaa631 100644
--- a/drivers/net/cxgb4vf/sge.c
+++ b/drivers/net/cxgb4vf/sge.c
@@ -41,6 +41,7 @@
 #include <net/ipv6.h>
 #include <net/tcp.h>
 #include <linux/dma-mapping.h>
+#include <linux/prefetch.h>
 
 #include "t4vf_common.h"
 #include "t4vf_defs.h"
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index c18cb8e883dd..76e8af00d86d 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -29,6 +29,7 @@
 #include "e1000.h"
 #include <net/ip6_checksum.h>
 #include <linux/io.h>
+#include <linux/prefetch.h>
 
 /* Intel Media SOC GbE MDIO physical base address */
 static unsigned long ce4100_gbe_mdio_base_phy;
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 0939040305fa..d9600566a1fc 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -49,6 +49,7 @@
 #include <linux/pm_qos_params.h>
 #include <linux/pm_runtime.h>
 #include <linux/aer.h>
+#include <linux/prefetch.h>
 
 #include "e1000.h"
 
diff --git a/drivers/net/ehea/ehea_qmr.h b/drivers/net/ehea/ehea_qmr.h
index 38104734a3be..fddff8ec8cfd 100644
--- a/drivers/net/ehea/ehea_qmr.h
+++ b/drivers/net/ehea/ehea_qmr.h
@@ -29,6 +29,7 @@
 #ifndef __EHEA_QMR_H__
 #define __EHEA_QMR_H__
 
+#include <linux/prefetch.h>
 #include "ehea.h"
 #include "ehea_hw.h"
 
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 3d99b0f1a236..2f433fbfca0c 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -35,6 +35,7 @@
 #include <linux/ipv6.h>
 #include <linux/tcp.h>
 #include <linux/rtnetlink.h>
+#include <linux/prefetch.h>
 #include <net/ip6_checksum.h>
 
 #include "cq_enet_desc.h"
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index d09e8b0add01..537b6957bb79 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -64,6 +64,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
+#include <linux/prefetch.h>
 #include  <linux/io.h>
 
 #include <asm/irq.h>
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index ce7838e55827..18fccf913635 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -45,6 +45,7 @@
 #include <linux/interrupt.h>
 #include <linux/if_ether.h>
 #include <linux/aer.h>
+#include <linux/prefetch.h>
 #ifdef CONFIG_IGB_DCA
 #include <linux/dca.h>
 #endif
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index 1d04ca6fdaea..1c77fb3bf4ae 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -41,6 +41,7 @@
 #include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
+#include <linux/prefetch.h>
 
 #include "igbvf.h"
 
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 0f681ac2da8d..6a130eb51cfa 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -28,6 +28,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/prefetch.h>
 #include "ixgb.h"
 
 char ixgb_driver_name[] = "ixgb";
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index fa01b0b03b77..08e8e25c159d 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -41,6 +41,7 @@
 #include <net/ip6_checksum.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
+#include <linux/prefetch.h>
 #include <scsi/fc/fc_fcoe.h>
 
 #include "ixgbe.h"
diff --git a/drivers/net/ixgbevf/ixgbevf_main.c b/drivers/net/ixgbevf/ixgbevf_main.c
index d7ab202fb95c..28d3cb21d376 100644
--- a/drivers/net/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ixgbevf/ixgbevf_main.c
@@ -44,6 +44,7 @@
 #include <net/ip6_checksum.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
+#include <linux/prefetch.h>
 
 #include "ixgbevf.h"
 
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index b1358f79ba0a..bf84849600ce 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -65,6 +65,7 @@
 #include <linux/io.h>
 #include <linux/log2.h>
 #include <linux/slab.h>
+#include <linux/prefetch.h>
 #include <net/checksum.h>
 #include <net/ip.h>
 #include <net/tcp.h>
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index 828e97cacdbf..9ec112ca62e4 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -35,6 +35,7 @@
 #include <linux/tcp.h>
 #include <net/checksum.h>
 #include <linux/inet_lro.h>
+#include <linux/prefetch.h>
 
 #include <asm/irq.h>
 #include <asm/firmware.h>
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
index c2476fd96573..eac3c5ca9731 100644
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/pch_gbe/pch_gbe_main.c
@@ -20,6 +20,7 @@
 
 #include "pch_gbe.h"
 #include "pch_gbe_api.h"
+#include <linux/prefetch.h>
 
 #define DRV_VERSION     "1.00"
 const char pch_driver_version[] = DRV_VERSION;
diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index d495a6859fd9..771bb614ccc9 100644
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -35,6 +35,7 @@
 #include <linux/if_vlan.h>
 #include <linux/delay.h>
 #include <linux/mm.h>
+#include <linux/prefetch.h>
 
 #include "qla3xxx.h"
 
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 6c9d124cfc76..930ae45457bb 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -38,6 +38,7 @@
 #include <linux/delay.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
+#include <linux/prefetch.h>
 #include <net/ip6_checksum.h>
 
 #include "qlge.h"
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 04f4e6086cd0..ef1ce2ebeb4a 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -26,6 +26,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/firmware.h>
 #include <linux/pci-aspm.h>
+#include <linux/prefetch.h>
 
 #include <asm/system.h>
 #include <asm/io.h>
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 89cfee7e8643..a9a5f5ed19c6 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -78,6 +78,7 @@
 #include <linux/uaccess.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/prefetch.h>
 #include <net/tcp.h>
 
 #include <asm/system.h>
diff --git a/drivers/net/sb1250-mac.c b/drivers/net/sb1250-mac.c
index d96d2f7a3f14..68d50429ddf3 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -43,6 +43,7 @@
 #include <linux/mii.h>
 #include <linux/phy.h>
 #include <linux/platform_device.h>
+#include <linux/prefetch.h>
 
 #include <asm/cache.h>
 #include <asm/io.h>
diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c
index b7dc891b4461..62e43649466e 100644
--- a/drivers/net/sfc/rx.c
+++ b/drivers/net/sfc/rx.c
@@ -14,6 +14,7 @@
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
+#include <linux/prefetch.h>
 #include <net/ip.h>
 #include <net/checksum.h>
 #include "net_driver.h"
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index 52a48cb75440..f4be5c78ebfd 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -44,6 +44,7 @@
 #include <linux/mii.h>
 #include <linux/slab.h>
 #include <linux/dmi.h>
+#include <linux/prefetch.h>
 #include <asm/irq.h>
 
 #include "skge.h"
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index e15c4a0bb96d..e25e44a45c28 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -45,6 +45,7 @@
 #include <linux/if_vlan.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/prefetch.h>
 #include "stmmac.h"
 
 #define STMMAC_RESOURCE_NAME	"stmmaceth"
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index 7ca51cebcddd..4a55a162dfe6 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -47,6 +47,7 @@ static const char *version = "tc35815.c:v" DRV_VERSION "\n";
 #include <linux/phy.h>
 #include <linux/workqueue.h>
 #include <linux/platform_device.h>
+#include <linux/prefetch.h>
 #include <asm/io.h>
 #include <asm/byteorder.h>
 
diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c
index fc837cf6bd4d..8ab870a2ad02 100644
--- a/drivers/net/vxge/vxge-main.c
+++ b/drivers/net/vxge/vxge-main.c
@@ -52,6 +52,7 @@
 #include <linux/etherdevice.h>
 #include <linux/firmware.h>
 #include <linux/net_tstamp.h>
+#include <linux/prefetch.h>
 #include "vxge-main.h"
 #include "vxge-reg.h"
 
diff --git a/drivers/net/vxge/vxge-traffic.c b/drivers/net/vxge/vxge-traffic.c
index 2638b8d97b8f..f93517055162 100644
--- a/drivers/net/vxge/vxge-traffic.c
+++ b/drivers/net/vxge/vxge-traffic.c
@@ -12,6 +12,7 @@
  * Copyright(c) 2002-2010 Exar Corp.
  ******************************************************************************/
 #include <linux/etherdevice.h>
+#include <linux/prefetch.h>
 
 #include "vxge-traffic.h"
 #include "vxge-config.h"
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index c779ce96e5b5..58c25ea5a5c1 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -72,6 +72,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/slab.h>
+#include <linux/prefetch.h>
 #include <net/net_namespace.h>
 #include <net/ip.h>
 #include <net/protocol.h>
-- 
2.20.1