[Linux-kernel-mentees] [PATCH v2] PCI: Remove functions not called in include/linux/pci.h

Lukas Bulwahn lukas.bulwahn at gmail.com
Mon Jul 15 19:42:47 UTC 2019



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 patch 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 at gmail.com>
> ---
> 

Nice finding. How did you discover this issue? Did you use a tool to find 
this ununsed code or stumble over it during your code review?

Also note that commits are referred to with this format:

commit <12-character sha prefix> ("<commit message>")

So, you need to change patch to commit and include brackets around your
quoted commit message.

Lukas

> Changes since v1:
>   - Fixed Signed-off-by line to show full name
> 
>  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
> 
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