linux-kernel - [PATCH v2 1/1] PCI: Improve printout in pdev_sort

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Message-Id: <20241017095545.1424-1-ilpo.jarvinen@linux.intel.com>
Date: Thu, 17 Oct 2024 12:55:45 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Philipp Stanner <pstanner@...hat.com>,
	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 v2 1/1] PCI: Improve printout in pdev_sort_resources()

Use pci_resource_name() helper in pdev_sort_resources() to print
resources in user-friendly format. Also replace the vague "bogus
alignment" with a more precise explanation of the problem.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---

v2:
- Place colon after %s %pR to be consistent with other printouts
- Replace vague "bogus alignment" with the exact cause

 drivers/pci/setup-bus.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 23082bc0ca37..0fd286f79674 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -134,6 +134,7 @@ static void pdev_sort_resources(struct pci_dev *dev, struct list_head *head)
 	int i;
 
 	pci_dev_for_each_resource(dev, r, i) {
+		const char *r_name = pci_resource_name(dev, i);
 		struct pci_dev_resource *dev_res, *tmp;
 		resource_size_t r_align;
 		struct list_head *n;
@@ -146,8 +147,8 @@ static void pdev_sort_resources(struct pci_dev *dev, struct list_head *head)
 
 		r_align = pci_resource_alignment(dev, r);
 		if (!r_align) {
-			pci_warn(dev, "BAR %d: %pR has bogus alignment\n",
-				 i, r);
+			pci_warn(dev, "%s %pR: alignment must not be zero\n",
+				 r_name, r);
 			continue;
 		}
 
-- 
2.39.5