[PATCH 5/6] PCI: don't reassign resources that are already aligned

Stewart Hildebrand
2024-07-09T13:36:55Z

As a follow-up to commit 0dde1c08d1b9 ("PCI: Don't reassign resources
that are already aligned"), don't reassign already aligned resources
that have requested alignment without resizing.

Signed-off-by: Stewart Hildebrand <stewart.hildebrand@amd.com>
---
drivers/pci/pci.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7953e75b9129..9f7894538334 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -6553,6 +6553,9 @@ static void pci_request_resource_alignment(struct pci_dev *dev, int bar,
if (size >= align)
return;

+ if (!resize && (r->start > align) && !(r->start & (align - 1)))
+ return;
+
/*
* Increase the alignment of the resource. There are two ways we
* can do this:
--
2.45.2