PCI: endpoint: Allow only_64bit on BAR_RESERVED

Remove the documentation that forbids setting only_64bit on a BAR of type
BAR_RESERVED.

When a reserved BAR is 64-bit by default, setting only_64bit is the most
accurate description. If we later add support to disable a reserved BAR
(e.g. disable_bar() for BARs that were never set via set_bar()), the
implementation will need to clear the adjacent BAR (upper 32 bits) as well;
having only_64bit set documents that requirement.

Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20260312130229.2282001-14-cassel@kernel.org

diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
index c981ea7d52c02924426630f2507cf2747ed016d4..5c59f560686934f3db758e3656cf437b2f5ae341 100644 (file)
--- a/include/linux/pci-epc.h
+++ b/include/linux/pci-epc.h
@@ -207,11 +207,6 @@ enum pci_epc_bar_type {
  * @only_64bit: if true, an EPF driver is not allowed to choose if this BAR
  *             should be configured as 32-bit or 64-bit, the EPF driver must
  *             configure this BAR as 64-bit.
- *
- *             only_64bit should not be set on a BAR of type BAR_RESERVED.
- *             (If BARx is a 64-bit BAR that an EPF driver is not allowed to
- *             touch, then both BARx and BARx+1 must be set to type
- *             BAR_RESERVED.)
  */
 struct pci_epc_bar_desc {
        enum pci_epc_bar_type type;