diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2023-09-19 15:56:46 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-10-17 20:10:31 -0500 |
| commit | d1f9b39da4a5347150246871325190018cda8cb3 (patch) | |
| tree | a34c1e3cb38fa7ae51f6e4925c43b0976baa6cd3 /drivers/pci/pci-sysfs.c | |
| parent | 408599ec561ad5862cda4f107626009f6fa97a74 (diff) | |
PCI: Use FIELD_GET() to extract Link Width
Use FIELD_GET() to extract PCIe Negotiated and Maximum Link Width fields
instead of custom masking and shifting.
Link: https://lore.kernel.org/r/20230919125648.1920-7-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
[bhelgaas: drop duplicate include of <linux/bitfield.h>]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/pci/pci-sysfs.c')
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index d9eede2dbc0e..5a6241044c3c 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -12,7 +12,7 @@ * Modeled after usb's driverfs.c */ - +#include <linux/bitfield.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/pci.h> @@ -230,8 +230,7 @@ static ssize_t current_link_width_show(struct device *dev, if (err) return -EINVAL; - return sysfs_emit(buf, "%u\n", - (linkstat & PCI_EXP_LNKSTA_NLW) >> PCI_EXP_LNKSTA_NLW_SHIFT); + return sysfs_emit(buf, "%u\n", FIELD_GET(PCI_EXP_LNKSTA_NLW, linkstat)); } static DEVICE_ATTR_RO(current_link_width); |