diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2023-10-18 14:32:51 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2023-10-24 10:54:04 -0500 |
| commit | 9a9eec4765737b9b2a8d6ae03de6480a5f12dd5c (patch) | |
| tree | 16be8c879c2301d02da4326852228ed8773797ce /drivers/pci/pcie | |
| parent | abaaac4845a0d6f39f83cbaba4c3b46ba5f93170 (diff) | |
PCI/DPC: Use FIELD_GET()
Use FIELD_GET() to remove dependencies on the field position, i.e., the
shift value. No functional change intended.
Link: https://lore.kernel.org/r/20231018113254.17616-5-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/dpc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c index 3ceed8e3de41..a5c259ada9ea 100644 --- a/drivers/pci/pcie/dpc.c +++ b/drivers/pci/pcie/dpc.c @@ -9,6 +9,7 @@ #define dev_fmt(fmt) "DPC: " fmt #include <linux/aer.h> +#include <linux/bitfield.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/init.h> @@ -202,7 +203,7 @@ static void dpc_process_rp_pio_error(struct pci_dev *pdev) /* Get First Error Pointer */ pci_read_config_word(pdev, cap + PCI_EXP_DPC_STATUS, &dpc_status); - first_error = (dpc_status & 0x1f00) >> 8; + first_error = FIELD_GET(PCI_EXP_DPC_RP_PIO_FEP, dpc_status); for (i = 0; i < ARRAY_SIZE(rp_pio_error_string); i++) { if ((status & ~mask) & (1 << i)) @@ -338,7 +339,7 @@ void pci_dpc_init(struct pci_dev *pdev) /* Quirks may set dpc_rp_log_size if device or firmware is buggy */ if (!pdev->dpc_rp_log_size) { pdev->dpc_rp_log_size = - (cap & PCI_EXP_DPC_RP_PIO_LOG_SIZE) >> 8; + FIELD_GET(PCI_EXP_DPC_RP_PIO_LOG_SIZE, cap); if (pdev->dpc_rp_log_size < 4 || pdev->dpc_rp_log_size > 9) { pci_err(pdev, "RP PIO log size %u is invalid\n", pdev->dpc_rp_log_size); |