From: "Mauro S. M. Rodrigues" <maur...@linux.vnet.ibm.com>

There are several uses of hw_dbg in the code, producing no output. This
patch implements it using pr_debug.

Initially the intention was to implement it using netdev_dbg, analogously
to what is done in ixgbe for instance. That approach was avoided due to
some early usages of hw_dbg, like i40e_pf_reset, before the VSI structure
initialization causing NULL pointer dereference during the driver probe if
the dbg messages were turned on as soon as the module is probed.

Signed-off-by: "Mauro S. M. Rodrigues" <maur...@linux.vnet.ibm.com>
Tested-by: Andrew Bowers <andrewx.bow...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c | 1 +
 drivers/net/ethernet/intel/i40e/i40e_hmc.c    | 1 +
 drivers/net/ethernet/intel/i40e/i40e_osdep.h  | 7 ++++++-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c 
b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 46e649c09f72..d37c6e0e5f08 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright(c) 2013 - 2018 Intel Corporation. */
 
+#include "i40e.h"
 #include "i40e_type.h"
 #include "i40e_adminq.h"
 #include "i40e_prototype.h"
diff --git a/drivers/net/ethernet/intel/i40e/i40e_hmc.c 
b/drivers/net/ethernet/intel/i40e/i40e_hmc.c
index 19ce93d7fd0a..163ee8c6311c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_hmc.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_hmc.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright(c) 2013 - 2018 Intel Corporation. */
 
+#include "i40e.h"
 #include "i40e_osdep.h"
 #include "i40e_register.h"
 #include "i40e_status.h"
diff --git a/drivers/net/ethernet/intel/i40e/i40e_osdep.h 
b/drivers/net/ethernet/intel/i40e/i40e_osdep.h
index a07574bff550..c0c9ce3eab23 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_osdep.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_osdep.h
@@ -18,7 +18,12 @@
  * actual OS primitives
  */
 
-#define hw_dbg(hw, S, A...)    do {} while (0)
+#define hw_dbg(hw, S, A...)                                                    
\
+do {                                                                           
\
+       int domain = pci_domain_nr(((struct i40e_pf *)(hw)->back)->pdev->bus);  
\
+       pr_debug("i40e %04x:%02x:%02x.%x " S, domain, (hw)->bus.bus_id,         
\
+                (hw)->bus.device, (hw)->bus.func, ## A);                       
\
+} while (0)
 
 #define wr32(a, reg, value)    writel((value), ((a)->hw_addr + (reg)))
 #define rd32(a, reg)           readl((a)->hw_addr + (reg))
-- 
2.21.0

Reply via email to