linux-kernel - [PATCH v2 2/3] PCI: Move pci_[get|set]_resource_alignment

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Date:   Thu, 22 Aug 2019 10:10:12 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Logan Gunthorpe <logang@...tatee.com>
Subject: [PATCH v2 2/3] PCI: Move pci_[get|set]_resource_alignment_param() into their callers

Both the functions pci_get_resource_alignment_param() and
pci_set_resource_alignment_param() are now only called in one place:
resource_alignment_show() and resource_alignment_store() respectively.

There is no value in this extra set of functions so we move both into
their callers respectively.

Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
---
 drivers/pci/pci.c | 30 ++++++++++--------------------
 1 file changed, 10 insertions(+), 20 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 489fff757833..5e00371149b1 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -6108,39 +6108,29 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev)
 	}
 }
 
-static ssize_t pci_set_resource_alignment_param(const char *buf, size_t count)
-{
-	spin_lock(&resource_alignment_lock);
-
-	kfree(resource_alignment_param);
-	resource_alignment_param = kstrndup(buf, count, GFP_KERNEL);
-
-	spin_unlock(&resource_alignment_lock);
-
-	return resource_alignment_param ? count : -ENOMEM;
-}
-
-static ssize_t pci_get_resource_alignment_param(char *buf, size_t size)
+static ssize_t resource_alignment_show(struct bus_type *bus, char *buf)
 {
 	size_t count = 0;
 
 	spin_lock(&resource_alignment_lock);
 	if (resource_alignment_param)
-		count = snprintf(buf, size, "%s", resource_alignment_param);
+		count = snprintf(buf, PAGE_SIZE, "%s", resource_alignment_param);
 	spin_unlock(&resource_alignment_lock);
 
 	return count;
 }
 
-static ssize_t resource_alignment_show(struct bus_type *bus, char *buf)
-{
-	return pci_get_resource_alignment_param(buf, PAGE_SIZE);
-}
-
 static ssize_t resource_alignment_store(struct bus_type *bus,
 					const char *buf, size_t count)
 {
-	return pci_set_resource_alignment_param(buf, count);
+	spin_lock(&resource_alignment_lock);
+
+	kfree(resource_alignment_param);
+	resource_alignment_param = kstrndup(buf, count, GFP_KERNEL);
+
+	spin_unlock(&resource_alignment_lock);
+
+	return resource_alignment_param ? count : -ENOMEM;
 }
 
 static BUS_ATTR_RW(resource_alignment);
-- 
2.20.1