diff options
| author | Bolarinwa O. Saheed <refactormyself@gmail.com> | 2021-11-19 22:37:29 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-11-20 01:15:43 +0300 |
| commit | 43262f001b318a0c0531e252b47bc6b07794f356 (patch) | |
| tree | d6de2e4e963e2a6e3357a4498aac225ce3cd1b1e /drivers/pci/pcie | |
| parent | fa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf (diff) | |
| download | linux-43262f001b318a0c0531e252b47bc6b07794f356.tar.xz | |
PCI/ASPM: Move pci_function_0() upward
Move pci_function_0() earlier so we can use it from other functions.
Link: https://lore.kernel.org/r/20211119193732.12343-2-refactormyself@gmail.com
Signed-off-by: Bolarinwa O. Saheed <refactormyself@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 52c74682601a..6f128b654730 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -105,6 +105,20 @@ static const char *policy_str[] = { #define LINK_RETRAIN_TIMEOUT HZ +/* + * The L1 PM substate capability is only implemented in function 0 in a + * multi function device. + */ +static struct pci_dev *pci_function_0(struct pci_bus *linkbus) +{ + struct pci_dev *child; + + list_for_each_entry(child, &linkbus->devices, bus_list) + if (PCI_FUNC(child->devfn) == 0) + return child; + return NULL; +} + static int policy_to_aspm_state(struct pcie_link_state *link) { switch (aspm_policy) { @@ -423,20 +437,6 @@ static void pcie_aspm_check_latency(struct pci_dev *endpoint) } } -/* - * The L1 PM substate capability is only implemented in function 0 in a - * multi function device. - */ -static struct pci_dev *pci_function_0(struct pci_bus *linkbus) -{ - struct pci_dev *child; - - list_for_each_entry(child, &linkbus->devices, bus_list) - if (PCI_FUNC(child->devfn) == 0) - return child; - return NULL; -} - static void pci_clear_and_set_dword(struct pci_dev *pdev, int pos, u32 clear, u32 set) { |