linux-kernel - [PATCH v2 3/4] PCI: Use align and resource helpers, and SZ_* in quirk_s3

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Date: Fri, 14 Jun 2024 13:06:05 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: linux-pci@...r.kernel.org,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Philipp Stanner <pstanner@...hat.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	linux-kernel@...r.kernel.org
Cc: Jonathan Hunter <jonathanh@...dia.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-tegra@...r.kernel.org,
	Robert Richter <rric@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH v2 3/4] PCI: Use align and resource helpers, and SZ_* in quirk_s3_64M()

Use IS_ALIGNED(), resource_size(), and SZ_* defines in quirk_s3_64M().

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
---
 drivers/pci/quirks.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index bde0f5388d06..125fc1cbad95 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -12,6 +12,7 @@
  * file, where their drivers can use them.
  */
 
+#include <linux/align.h>
 #include <linux/bitfield.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -591,7 +592,7 @@ static void quirk_s3_64M(struct pci_dev *dev)
 {
 	struct resource *r = &dev->resource[0];
 
-	if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) {
+	if (!IS_ALIGNED(r->start, SZ_64M) || resource_size(r) != SZ_64M) {
 		r->flags |= IORESOURCE_UNSET;
 		resource_set_range(r, 0, SZ_64M);
 	}
-- 
2.39.2