Commit 4f601167 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by Tony Nguyen
Browse files

igb: Use FIELD_GET() to extract Link Width 



Use FIELD_GET() to extract PCIe Negotiated Link Width field instead of
custom masking and shifting.

Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent 609c767f

drivers/net/ethernet/intel/igb/e1000_mac.c

+3 −3
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/* Copyright(c) 2007 - 2018 Intel Corporation. */



#include <linux/bitfield.h>

#include <linux/if_ether.h>

#include <linux/delay.h>

#include <linux/pci.h>
@@ -50,9 +51,8 @@ s32 igb_get_bus_info_pcie(struct e1000_hw *hw) 
			break;

		}



		bus->width = (enum e1000_bus_width)((pcie_link_status &

						     PCI_EXP_LNKSTA_NLW) >>

						     PCI_EXP_LNKSTA_NLW_SHIFT);

		bus->width = (enum e1000_bus_width)FIELD_GET(PCI_EXP_LNKSTA_NLW,

							     pcie_link_status);

	}



	reg = rd32(E1000_STATUS);