linux-kernel - [PATCH v2 03/22] PCI/P2PDMA: Cleanup type for return value of calc_map_type_and

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Date:   Thu, 13 May 2021 16:31:44 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
        linux-block@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-mm@...ck.org, iommu@...ts.linux-foundation.org
Cc:     Stephen Bates <sbates@...thlin.com>,
        Christoph Hellwig <hch@....de>,
        Dan Williams <dan.j.williams@...el.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Christian König <christian.koenig@....com>,
        John Hubbard <jhubbard@...dia.com>,
        Don Dutile <ddutile@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Jakowski Andrzej <andrzej.jakowski@...el.com>,
        Minturn Dave B <dave.b.minturn@...el.com>,
        Jason Ekstrand <jason@...kstrand.net>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Xiong Jianxin <jianxin.xiong@...el.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Ira Weiny <ira.weiny@...el.com>,
        Robin Murphy <robin.murphy@....com>,
        Logan Gunthorpe <logang@...tatee.com>
Subject: [PATCH v2 03/22] PCI/P2PDMA: Cleanup type for return value of calc_map_type_and_dist()

Instead of using an int for the return value of this function use the
correct enum pci_p2pdma_map_type.

Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
---
 drivers/pci/p2pdma.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 3a5fb63c5f2c..09c864f193d2 100644
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -544,11 +544,11 @@ calc_map_type_and_dist_warn(struct pci_dev *provider, struct pci_dev *client,
 int pci_p2pdma_distance_many(struct pci_dev *provider, struct device **clients,
 			     int num_clients, bool verbose)
 {
+	enum pci_p2pdma_map_type map;
 	bool not_supported = false;
 	struct pci_dev *pci_client;
 	int total_dist = 0;
-	int distance;
-	int i, ret;
+	int i, distance;
 
 	if (num_clients == 0)
 		return -1;
@@ -563,15 +563,15 @@ int pci_p2pdma_distance_many(struct pci_dev *provider, struct device **clients,
 		}
 
 		if (verbose)
-			ret = calc_map_type_and_dist_warn(provider, pci_client,
+			map = calc_map_type_and_dist_warn(provider, pci_client,
 							  &distance);
 		else
-			ret = calc_map_type_and_dist(provider, pci_client,
+			map = calc_map_type_and_dist(provider, pci_client,
 						     &distance, NULL, NULL);
 
 		pci_dev_put(pci_client);
 
-		if (ret == PCI_P2PDMA_MAP_NOT_SUPPORTED)
+		if (map == PCI_P2PDMA_MAP_NOT_SUPPORTED)
 			not_supported = true;
 
 		if (not_supported && !verbose)
-- 
2.20.1