linux-kernel - [PATCH v2 24/24] PCI: Alter misleading recursion to pci_bus_release_bridge

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Message-Id: <20250829131113.36754-25-ilpo.jarvinen@linux.intel.com>
Date: Fri, 29 Aug 2025 16:11:13 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-pci@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH v2 24/24] PCI: Alter misleading recursion to pci_bus_release_bridge_resources()

Recursing into pci_bus_release_bridge_resources() should not alter rel_type
because it makes no sense to change the release type within the recursion
call chain. A literal "whole_subtree" is passed into the recursion instead
of "rel_type" parameter which is misleading as the release type should
remain the same throughout the entire operation.

This is not a correctness issue because of the preceding if () that only
allows the recursion to happen if rel_type is "whole_subtree". Still,
replace the non-intuitive parameter with direct passing of "rel_type".

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/pci/setup-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 4ce747b5dea3..d264f16772b9 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1855,7 +1855,7 @@ static void pci_bus_release_bridge_resources(struct pci_bus *bus,
 			if (res->parent != b_win)
 				continue;

-			pci_bus_release_bridge_resources(b, res, whole_subtree);
+			pci_bus_release_bridge_resources(b, res, rel_type);
 		}
 	}

-- 
2.39.5