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PCI: Convert pci_resource_alignment() input parameters to const

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pci_resource_alignment() calculates resource alignment and should not alter
its input structs. Make its input parameters const.

It requires making also pci_cardbus_resource_alignment() input const.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260429122617.7324-9-ilpo.jarvinen@linux.intel.com
This commit is contained in:
Ilpo Järvinen 2026-04-29 15:26:14 +03:00 committed by Bjorn Helgaas
parent 79a648209d
commit 1845201aa5
2 changed files with 5 additions and 5 deletions
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8
drivers/pci/pci.h
View File

@ -419,7 +419,7 @@ static inline bool pci_is_cardbus_bridge(struct pci_dev *dev)
return dev->hdr_type == PCI_HEADER_TYPE_CARDBUS;
}
#ifdef CONFIG_CARDBUS
unsigned long pci_cardbus_resource_alignment(struct resource *res);
unsigned long pci_cardbus_resource_alignment(const struct resource *res);
int pci_bus_size_cardbus_bridge(struct pci_bus *bus,
struct list_head *realloc_head);
int pci_cardbus_scan_bridge_extend(struct pci_bus *bus, struct pci_dev *dev,
@ -428,7 +428,7 @@ int pci_cardbus_scan_bridge_extend(struct pci_bus *bus, struct pci_dev *dev,
int pci_setup_cardbus(char *str);
#else
static inline unsigned long pci_cardbus_resource_alignment(struct resource *res)
static inline unsigned long pci_cardbus_resource_alignment(const struct resource *res)
{
return 0;
}
@ -1044,8 +1044,8 @@ static inline void pci_suspend_ptm(struct pci_dev *dev) { }
static inline void pci_resume_ptm(struct pci_dev *dev) { }
#endif
static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
struct resource *res)
static inline resource_size_t pci_resource_alignment(const struct pci_dev *dev,
const struct resource *res)
{
int resno = pci_resource_num(dev, res);

2
drivers/pci/setup-cardbus.c
View File

@ -22,7 +22,7 @@
static unsigned long pci_cardbus_io_size = DEFAULT_CARDBUS_IO_SIZE;
static unsigned long pci_cardbus_mem_size = DEFAULT_CARDBUS_MEM_SIZE;
unsigned long pci_cardbus_resource_alignment(struct resource *res)
unsigned long pci_cardbus_resource_alignment(const struct resource *res)
{
if (res->flags & IORESOURCE_IO)
return pci_cardbus_io_size;