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| author |   Rick Wertenbroek <rick.wertenbroek@gmail.com> | 2024-11-14 17:10:32 +0100 |
|---|---|---|
| committer |   Krzysztof Wilczyński <kwilczynski@kernel.org> | 2024-11-18 17:18:21 +0000 |
| commit | 28b6acd75e3cefbe746ec7402c7ff4fdb114f327 (patch) | |
| tree | 141e4f2a921d4b69843c71029ea659bb280158da | |
| parent | PCI: endpoint: Clear secondary (not primary) EPC in pci_epc_remove_epf() (diff) | |
| download | wireguard-linux-28b6acd75e3cefbe746ec7402c7ff4fdb114f327.tar.xz wireguard-linux-28b6acd75e3cefbe746ec7402c7ff4fdb114f327.zip | |
PCI: endpoint: Fix pci_epc_map map_size kerneldoc string
Because some endpoint controllers have requirements on the alignment of
the controller physical memory address that must be used to map a RC PCI
address region, the map PCI start address is not necessarily the desired
PCI base address to be mapped. This can result in map_pci_addr being
lower than pci_addr as documented. This results in map_size covering the
range map_pci_addr..pci_addr+pci_size.
The old text had the pci_addr twice instead of map_pci_addr..pci_addr,
so replace the erroneous kerneldoc string to reflect the actual range.
Link: https://lore.kernel.org/r/20241114161032.3046202-1-rick.wertenbroek@gmail.com
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/pci-epc.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index de8cc3658220..e818e3fdcded 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -40,7 +40,7 @@ pci_epc_interface_string(enum pci_epc_interface_type type) * @map_pci_addr: RC PCI address used as the first address mapped (may be lower * than @pci_addr) * @map_size: size of the controller memory needed for mapping the RC PCI address - * range @pci_addr..@pci_addr+@pci_size + * range @map_pci_addr..@pci_addr+@pci_size * @phys_base: base physical address of the allocated EPC memory for mapping the * RC PCI address range * @phys_addr: physical address at which @pci_addr is mapped |