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(parent: f646c2a) | patch
PCI: Return u16 from pci_find_ext_capability() and similar
authorBjorn Helgaas <bhelgaas@google.com>
Fri, 4 Dec 2020 21:14:07 +0000 (15:14 -0600)
committerBjorn Helgaas <bhelgaas@google.com>
Fri, 4 Dec 2020 21:14:07 +0000 (15:14 -0600)
commitee8b1c478a9fbce9c64151ee561c124c4dcd66be
tree8334858dc67e42594063c7fa9b97887277a5a4ebtree | snapshot
parentf646c2a0a6685a8a30a150509b112c911b8feff3commit | diff
PCI: Return u16 from pci_find_ext_capability() and similar

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>
drivers/pci/pci.c diff | blob | history
include/linux/pci.h diff | blob | history
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