linux-kernel - [PATCH 3/3] PCI: Use reverse logic in pci_read_bridge

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Message-Id: <20241017141111.44612-3-ilpo.jarvinen@linux.intel.com>
Date: Thu, 17 Oct 2024 17:11:10 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 3/3] PCI: Use reverse logic in pci_read_bridge_bases()

Use reverse logic combined with return and continue to allow
significant reduction in indentation level in pci_read_bridge_bases().

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/pci/probe.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 4243b1e6ece2..cc97dbda7e76 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -543,14 +543,15 @@ void pci_read_bridge_bases(struct pci_bus *child)
 	pci_read_bridge_mmio(child->self, child->resource[1], false);
 	pci_read_bridge_mmio_pref(child->self, child->resource[2], false);
 
-	if (dev->transparent) {
-		pci_bus_for_each_resource(child->parent, res) {
-			if (res && res->flags) {
-				pci_bus_add_resource(child, res);
-				pci_info(dev, "  bridge window %pR (subtractive decode)\n",
-					   res);
-			}
-		}
+	if (!dev->transparent)
+		return;
+
+	pci_bus_for_each_resource(child->parent, res) {
+		if (!res || !res->flags)
+			continue;
+
+		pci_bus_add_resource(child, res);
+		pci_info(dev, "  bridge window %pR (subtractive decode)\n", res);
 	}
 }
 
-- 
2.39.5