[PATCH-next] intel ethernet: fix s390 build failure due to implicit prefetch.h

[PATCH-next] intel ethernet: fix s390 build failure due to implicit prefetch.h

[Paul Gortmaker]

As of commit 7f12ad741a4870b8b6e3aafbcd868d0191770802 ("i40evf: transmit
and receive functionality") the s390 builds (allyesconfig) fail with:

drivers/net/ethernet/intel/i40evf/i40e_txrx.c: In function 'i40e_clean_rx_irq':
drivers/net/ethernet/intel/i40evf/i40e_txrx.c:818:3: error: implicit declaration of function 'prefetch'
make[5]: *** [drivers/net/ethernet/intel/i40evf/i40e_txrx.o] Error 1

due to an implicit assumption that the prototype from linux/prefetch.h
will be present.

Cc: Mitch Williams <mitch.a.williams@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Cc: Sibai Li <sibai.li@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 8f2b3b2..ffdb01d 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -21,6 +21,8 @@
  *
  ******************************************************************************/
 
+#include <linux/prefetch.h>
+
 #include "i40evf.h"
 
 static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
-- 
1.8.5.1


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Re: [PATCH-next] intel ethernet: fix s390 build failure due to implicit prefetch.h

[David Miller]

From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Fri, 10 Jan 2014 14:28:16 -0500

> As of commit 7f12ad741a4870b8b6e3aafbcd868d0191770802 ("i40evf: transmit
> and receive functionality") the s390 builds (allyesconfig) fail with:
> 
> drivers/net/ethernet/intel/i40evf/i40e_txrx.c: In function 'i40e_clean_rx_irq':
> drivers/net/ethernet/intel/i40evf/i40e_txrx.c:818:3: error: implicit declaration of function 'prefetch'
> make[5]: *** [drivers/net/ethernet/intel/i40evf/i40e_txrx.o] Error 1
> 
> due to an implicit assumption that the prototype from linux/prefetch.h
> will be present.
> 
> Cc: Mitch Williams <mitch.a.williams@intel.com>
> Cc: Greg Rose <gregory.v.rose@intel.com>
> Cc: Sibai Li <sibai.li@intel.com>
> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

I hope the Intel folks will pick this up quickly and push it to me.

Re: [PATCH-next] intel ethernet: fix s390 build failure due to implicit prefetch.h

[Jeff Kirsher]

[-- Attachment #1.1: Type: text/plain, Size: 1106 bytes --]

On Fri, 2014-01-10 at 14:52 -0500, David Miller wrote:
> From: Paul Gortmaker <paul.gortmaker@windriver.com>
> Date: Fri, 10 Jan 2014 14:28:16 -0500
> 
> > As of commit 7f12ad741a4870b8b6e3aafbcd868d0191770802 ("i40evf: transmit
> > and receive functionality") the s390 builds (allyesconfig) fail with:
> > 
> > drivers/net/ethernet/intel/i40evf/i40e_txrx.c: In function 'i40e_clean_rx_irq':
> > drivers/net/ethernet/intel/i40evf/i40e_txrx.c:818:3: error: implicit declaration of function 'prefetch'
> > make[5]: *** [drivers/net/ethernet/intel/i40evf/i40e_txrx.o] Error 1
> > 
> > due to an implicit assumption that the prototype from linux/prefetch.h
> > will be present.
> > 
> > Cc: Mitch Williams <mitch.a.williams@intel.com>
> > Cc: Greg Rose <gregory.v.rose@intel.com>
> > Cc: Sibai Li <sibai.li@intel.com>
> > Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> > Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
> 
> I hope the Intel folks will pick this up quickly and push it to me.

Yep, Aaron has it in the queue and it is being reviewed and tested
currently.

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