Thread (9 messages) 9 messages, 3 authors, 2019-07-23

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

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From: Lukas Bulwahn <hidden>
Date: 2019-07-16 04:58:31
Also in: linux-pci, lkml


On Mon, 15 Jul 2019, Kelsey Skunberg wrote:
quoted hunk ↗ jump to hunk
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 at 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 at gmail.com>

Lukas
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