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: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Ilpo Järvinen 2023-11-21 14:34:26 +02:00 • committed by Tony Nguyen
commit 4f6011678d