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SubjectRe: [Linux-kernel-mentees] [PATCH v3] PCI: Remove functions not called in include/linux/pci.h


On Mon, 15 Jul 2019, Kelsey Skunberg wrote:

> Remove the following uncalled functions from include/linux/pci.h:
>
> pci_block_cfg_access()
> pci_block_cfg_access_in_atomic()
> pci_unblock_cfg_access()
>
> Functions were added in commit fb51ccbf217c ("PCI: Rework config space
> blocking services"), though no callers were added. Code continues to be
> unused and should be removed.
>
> Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
> ---
>
> Changes since v1:
> - Fixed Signed-off-by line to show full name
>
> Changes since v2:
> - Change commit message to reference prior commit properly with the
> following format:
> commit <12-character sha prefix> ("<commit message>")
>
> include/linux/pci.h | 5 -----
> 1 file changed, 5 deletions(-)
>
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index cf380544c700..3c9ba6133bea 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -1656,11 +1656,6 @@ static inline void pci_release_regions(struct pci_dev *dev) { }
>
> static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
>
> -static inline void pci_block_cfg_access(struct pci_dev *dev) { }
> -static inline int pci_block_cfg_access_in_atomic(struct pci_dev *dev)
> -{ return 0; }
> -static inline void pci_unblock_cfg_access(struct pci_dev *dev) { }
> -
> static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from)
> { return NULL; }
> static inline struct pci_dev *pci_get_slot(struct pci_bus *bus,
> --
> 2.20.1

I just checked with elixir on v5.2 that all three identifiers are never
referenced beyond its definition in pci.h:

https://elixir.bootlin.com/linux/v5.2/ident/pci_block_cfg_access
https://elixir.bootlin.com/linux/v5.2/ident/pci_block_cfg_access_in_atomic
https://elixir.bootlin.com/linux/v5.2/ident/pci_unblock_cfg_access

So, what it is worth:

Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>

Lukas

>
> _______________________________________________
> Linux-kernel-mentees mailing list
> Linux-kernel-mentees@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees
>

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