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| author | Puranjay Mohan <puranjay12@gmail.com> | 2020-11-29 22:16:26 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-12-04 15:00:17 -0600 |
| commit | f646c2a0a6685a8a30a150509b112c911b8feff3 (patch) | |
| tree | 974d5618fd35266a9102937c4a66474f7f6790db /include/linux/pci.h | |
| parent | 3853f9123c185eb4018f5ccd3cdda5968efb5e10 (diff) | |
| download | lwn-f646c2a0a6685a8a30a150509b112c911b8feff3.tar.gz lwn-f646c2a0a6685a8a30a150509b112c911b8feff3.zip | |
PCI: Return u8 from pci_find_capability() and similar
PCI Capabilities are linked in a list that must appear in the first 256
bytes of config space. Each capabilities list pointer is 8 bits.
Change the return type of pci_find_capability() and supporting functions
from int to u8 to match the specification.
[bhelgaas: change other related interfaces, fix HyperTransport typos]
Link: https://lore.kernel.org/r/20201129164626.12887-1-puranjay12@gmail.com
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index e007bc3e8b6e..e615f8abdd79 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1064,12 +1064,13 @@ void pci_sort_breadthfirst(void); /* Generic PCI functions exported to card drivers */ -int pci_find_capability(struct pci_dev *dev, int cap); -int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap); +u8 pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap); +u8 pci_find_capability(struct pci_dev *dev, int cap); +u8 pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap); +u8 pci_find_ht_capability(struct pci_dev *dev, int ht_cap); +u8 pci_find_next_ht_capability(struct pci_dev *dev, u8 pos, int ht_cap); int pci_find_ext_capability(struct pci_dev *dev, int cap); int pci_find_next_ext_capability(struct pci_dev *dev, int pos, int cap); -int pci_find_ht_capability(struct pci_dev *dev, int ht_cap); -int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap); struct pci_bus *pci_find_next_bus(const struct pci_bus *from); u64 pci_get_dsn(struct pci_dev *dev); @@ -1280,7 +1281,6 @@ void set_pcie_port_type(struct pci_dev *pdev); void set_pcie_hotplug_bridge(struct pci_dev *pdev); /* Functions for PCI Hotplug drivers to use */ -int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap); unsigned int pci_rescan_bus_bridge_resize(struct pci_dev *bridge); unsigned int pci_rescan_bus(struct pci_bus *bus); void pci_lock_rescan_remove(void); @@ -1720,7 +1720,7 @@ static inline int __pci_register_driver(struct pci_driver *drv, static inline int pci_register_driver(struct pci_driver *drv) { return 0; } static inline void pci_unregister_driver(struct pci_driver *drv) { } -static inline int pci_find_capability(struct pci_dev *dev, int cap) +static inline u8 pci_find_capability(struct pci_dev *dev, int cap) { return 0; } static inline int pci_find_next_capability(struct pci_dev *dev, u8 post, int cap) |