From: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Date: Fri, 15 May 2020 17:36:35 -0700
Subject: ice: Fix bad register reads
Patch-mainline: v5.8-rc1
Git-commit: 1fba4a8a92706c89716449b1aab1b6879f438d34
References: jsc#SLE-12878

The "ethtool -d" handler reads registers in the ice_regs_dump_list array
and returns read values back to the userspace.

The register offsets PFINT0_ITR* are not valid as per the specification
and reading these causes a "unable to handle kernel paging request" bug
in the driver. Remove these registers from ice_regs_dump_list.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_ethtool.c    |    3 ---
 drivers/net/ethernet/intel/ice/ice_hw_autogen.h |    3 ---
 2 files changed, 6 deletions(-)

--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -142,9 +142,6 @@ static const u32 ice_regs_dump_list[] =
 	QINT_RQCTL(0),
 	PFINT_OICR_ENA,
 	QRX_ITR(0),
-	PF0INT_ITR_0(0),
-	PF0INT_ITR_1(0),
-	PF0INT_ITR_2(0),
 };
 
 struct ice_priv_flag {
--- a/drivers/net/ethernet/intel/ice/ice_hw_autogen.h
+++ b/drivers/net/ethernet/intel/ice/ice_hw_autogen.h
@@ -6,9 +6,6 @@
 #ifndef _ICE_HW_AUTOGEN_H_
 #define _ICE_HW_AUTOGEN_H_
 
-#define PF0INT_ITR_0(_i)			(0x03000004 + ((_i) * 4096))
-#define PF0INT_ITR_1(_i)			(0x03000008 + ((_i) * 4096))
-#define PF0INT_ITR_2(_i)			(0x0300000C + ((_i) * 4096))
 #define QTX_COMM_DBELL(_DBQM)			(0x002C0000 + ((_DBQM) * 4))
 #define QTX_COMM_HEAD(_DBQM)			(0x000E0000 + ((_DBQM) * 4))
 #define QTX_COMM_HEAD_HEAD_S			0