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authorIlpo Järvinen <ilpo.jarvinen@linux.intel.com>2024-10-17 17:11:08 +0300
committerBjorn Helgaas <bhelgaas@google.com>2024-10-18 13:34:59 -0500
commit6eaa83ec229b1e99130456c4f6658430d509c76c (patch)
treef439d0baf055705be3232438260010cc46a731cf /include/linux/pci.h
parent9852d85ec9d492ebef56dc5f229416c925758edc (diff)
PCI: Remove unused PCI_SUBTRACTIVE_DECODE
2fe2abf896c1 ("PCI: augment bus resource table with a list") added PCI_SUBTRACTIVE_DECODE which is put into the struct pci_bus_resource flags field but is never read. There seems to never have been users for it. Remove both PCI_SUBTRACTIVE_DECODE and the flags field from the struct pci_bus_resource. Link: https://lore.kernel.org/r/20241017141111.44612-1-ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r--include/linux/pci.h12
1 files changed, 1 insertions, 11 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 573b4c4c2be6..6a9cf80d0d4b 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -633,18 +633,9 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge);
* Use pci_bus_for_each_resource() to iterate through all the resources.
*/
-/*
- * PCI_SUBTRACTIVE_DECODE means the bridge forwards the window implicitly
- * and there's no way to program the bridge with the details of the window.
- * This does not apply to ACPI _CRS windows, even with the _DEC subtractive-
- * decode bit set, because they are explicit and can be programmed with _SRS.
- */
-#define PCI_SUBTRACTIVE_DECODE 0x1
-
struct pci_bus_resource {
struct list_head list;
struct resource *res;
- unsigned int flags;
};
#define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */
@@ -1498,8 +1489,7 @@ void pci_add_resource(struct list_head *resources, struct resource *res);
void pci_add_resource_offset(struct list_head *resources, struct resource *res,
resource_size_t offset);
void pci_free_resource_list(struct list_head *resources);
-void pci_bus_add_resource(struct pci_bus *bus, struct resource *res,
- unsigned int flags);
+void pci_bus_add_resource(struct pci_bus *bus, struct resource *res);
struct resource *pci_bus_resource_n(const struct pci_bus *bus, int n);
void pci_bus_remove_resources(struct pci_bus *bus);
void pci_bus_remove_resource(struct pci_bus *bus, struct resource *res);