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SubjectRe: [PATCH 1/6] PCI: Make pci_get_new_domain_nr static
On Tue, Apr 24, 2018 at 05:13:37PM +0200, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
>
> The only user of that function is of_pci_bus_find_domain_nr. Pure
> cleanup.

"The only user of pci_get_new_domain_nr() is of_pci_bus_find_domain_nr().
Since they are defined in the same compilation unit,
pci_get_new_domain_nr() can be made static, which also simplifies
preprocessor conditionals.

No functional change intended."

> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> ---
> drivers/pci/pci.c | 6 ++----
> include/linux/pci.h | 3 ---
> 2 files changed, 2 insertions(+), 7 deletions(-)

Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index e597655a5643..695c2bb4e853 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -5702,15 +5702,14 @@ static void pci_no_domains(void)
> #endif
> }
>
> -#ifdef CONFIG_PCI_DOMAINS
> +#ifdef CONFIG_PCI_DOMAINS_GENERIC
> static atomic_t __domain_nr = ATOMIC_INIT(-1);
>
> -int pci_get_new_domain_nr(void)
> +static int pci_get_new_domain_nr(void)
> {
> return atomic_inc_return(&__domain_nr);
> }
>
> -#ifdef CONFIG_PCI_DOMAINS_GENERIC
> static int of_pci_bus_find_domain_nr(struct device *parent)
> {
> static int use_dt_domains = -1;
> @@ -5765,7 +5764,6 @@ int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent)
> acpi_pci_bus_find_domain_nr(bus);
> }
> #endif
> -#endif
>
> /**
> * pci_ext_cfg_avail - can we access extended PCI config space?
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index 73178a2fcee0..963232a6cd2e 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -1510,12 +1510,10 @@ void pci_cfg_access_unlock(struct pci_dev *dev);
> */
> #ifdef CONFIG_PCI_DOMAINS
> extern int pci_domains_supported;
> -int pci_get_new_domain_nr(void);
> #else
> enum { pci_domains_supported = 0 };
> static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
> static inline int pci_proc_domain(struct pci_bus *bus) { return 0; }
> -static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
> #endif /* CONFIG_PCI_DOMAINS */
>
> /*
> @@ -1670,7 +1668,6 @@ static inline struct pci_dev *pci_get_domain_bus_and_slot(int domain,
>
> static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
> static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
> -static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
>
> #define dev_is_pci(d) (false)
> #define dev_is_pf(d) (false)
> --
> 2.13.6
>

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