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authorSean V Kelley <sean.v.kelley@intel.com>2020-11-21 03:10:27 +0300
committerBjorn Helgaas <bhelgaas@google.com>2020-12-04 20:18:58 +0300
commit480ef7cb9fcebda7b28cbed4f6cdcf0a02f4a6ca (patch)
tree7fcea99854eb67100e8a2172341d8ab27e325eec /drivers/pci/pcie
parent5d69dcc9f839bd2d5cac7a098712f52149e1673f (diff)
downloadlinux-480ef7cb9fcebda7b28cbed4f6cdcf0a02f4a6ca.tar.xz
PCI/ERR: Simplify by computing pci_pcie_type() once
Instead of calling pci_pcie_type(dev) twice, call it once and save the result. No functional change intended. Link: https://lore.kernel.org/r/20201121001036.8560-7-sean.v.kelley@intel.com Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # non-native/no RCEC Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/pci/pcie')
-rw-r--r--drivers/pci/pcie/aer.c5
-rw-r--r--drivers/pci/pcie/err.c5
-rw-r--r--drivers/pci/pcie/portdrv_pci.c9
3 files changed, 11 insertions, 8 deletions
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index 6fe2d4ef0635..0ba0b47ae751 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -1034,6 +1034,7 @@ EXPORT_SYMBOL_GPL(aer_recover_queue);
*/
int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
{
+ int type = pci_pcie_type(dev);
int aer = dev->aer_cap;
int temp;
@@ -1052,8 +1053,8 @@ int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
&info->mask);
if (!(info->status & ~info->mask))
return 0;
- } else if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT ||
- pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM ||
+ } else if (type == PCI_EXP_TYPE_ROOT_PORT ||
+ type == PCI_EXP_TYPE_DOWNSTREAM ||
info->severity == AER_NONFATAL) {
/* Link is still healthy for IO reads */
diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
index 05f61da5ed9d..7a5af873d8bc 100644
--- a/drivers/pci/pcie/err.c
+++ b/drivers/pci/pcie/err.c
@@ -150,6 +150,7 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
pci_channel_state_t state,
pci_ers_result_t (*reset_subordinates)(struct pci_dev *pdev))
{
+ int type = pci_pcie_type(dev);
pci_ers_result_t status = PCI_ERS_RESULT_CAN_RECOVER;
struct pci_bus *bus;
@@ -157,8 +158,8 @@ pci_ers_result_t pcie_do_recovery(struct pci_dev *dev,
* Error recovery runs on all subordinates of the first downstream port.
* If the downstream port detected the error, it is cleared at the end.
*/
- if (!(pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT ||
- pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM))
+ if (!(type == PCI_EXP_TYPE_ROOT_PORT ||
+ type == PCI_EXP_TYPE_DOWNSTREAM))
dev = pci_upstream_bridge(dev);
bus = dev->subordinate;
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 4d880679b9b1..ff9517ee92b3 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -101,13 +101,14 @@ static const struct dev_pm_ops pcie_portdrv_pm_ops = {
static int pcie_portdrv_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
+ int type = pci_pcie_type(dev);
int status;
if (!pci_is_pcie(dev) ||
- ((pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT) &&
- (pci_pcie_type(dev) != PCI_EXP_TYPE_UPSTREAM) &&
- (pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM) &&
- (pci_pcie_type(dev) != PCI_EXP_TYPE_RC_EC)))
+ ((type != PCI_EXP_TYPE_ROOT_PORT) &&
+ (type != PCI_EXP_TYPE_UPSTREAM) &&
+ (type != PCI_EXP_TYPE_DOWNSTREAM) &&
+ (type != PCI_EXP_TYPE_RC_EC)))
return -ENODEV;
status = pcie_port_device_register(dev);