PCI: Return u16 from pci_find_ext_capability() and similar

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PCI Express Extended Capabilities are in config space between offsets 256
and 4K.  These offsets all fit in 16 bits.

Change the return type of pci_find_ext_capability() and supporting
functions from int to u16 to match the specification.  Many callers use
"int", which is fine, but there's no need to store more than a u16.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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This commit is contained in:

Bjorn Helgaas 2020-12-04 15:14:07 -06:00

parent f646c2a0a6

commit ee8b1c478a

2 changed files with 6 additions and 6 deletions

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6

drivers/pci/pci.c

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6

include/linux/pci.h

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