linux-kernel - [PATCH] xen/pciback: Fix incorrect type warnings

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Date:   Fri, 26 Mar 2021 23:14:42 +0500
From:   Muhammad Usama Anjum <musamaanjum@...il.com>
To:     Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        "moderated list:XEN HYPERVISOR INTERFACE" 
        <xen-devel@...ts.xenproject.org>,
        open list <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org, colin.king@...onical.com,
        dan.carpenter@...cle.com
Cc:     musamaanjum@...il.com
Subject: [PATCH] xen/pciback: Fix incorrect type warnings

Correct enum pci_channel_io_normal should be used instead of putting
integer value 1.

Fix following smatch warnings:
drivers/xen/xen-pciback/pci_stub.c:805:40: warning: incorrect type in argument 2 (different base types)
drivers/xen/xen-pciback/pci_stub.c:805:40:    expected restricted pci_channel_state_t [usertype] state
drivers/xen/xen-pciback/pci_stub.c:805:40:    got int
drivers/xen/xen-pciback/pci_stub.c:862:40: warning: incorrect type in argument 2 (different base types)
drivers/xen/xen-pciback/pci_stub.c:862:40:    expected restricted pci_channel_state_t [usertype] state
drivers/xen/xen-pciback/pci_stub.c:862:40:    got int
drivers/xen/xen-pciback/pci_stub.c:973:31: warning: incorrect type in argument 2 (different base types)
drivers/xen/xen-pciback/pci_stub.c:973:31:    expected restricted pci_channel_state_t [usertype] state
drivers/xen/xen-pciback/pci_stub.c:973:31:    got int

Signed-off-by: Muhammad Usama Anjum <musamaanjum@...il.com>
---
 drivers/xen/xen-pciback/pci_stub.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index cb904ac83006..f8e4faa96ad6 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -802,7 +802,7 @@ static pci_ers_result_t xen_pcibk_slot_reset(struct pci_dev *dev)
 			"guest with no AER driver should have been killed\n");
 		goto end;
 	}
-	result = common_process(psdev, 1, XEN_PCI_OP_aer_slotreset, result);
+	result = common_process(psdev, pci_channel_io_normal, XEN_PCI_OP_aer_slotreset, result);
 
 	if (result == PCI_ERS_RESULT_NONE ||
 		result == PCI_ERS_RESULT_DISCONNECT) {
@@ -859,7 +859,7 @@ static pci_ers_result_t xen_pcibk_mmio_enabled(struct pci_dev *dev)
 			"guest with no AER driver should have been killed\n");
 		goto end;
 	}
-	result = common_process(psdev, 1, XEN_PCI_OP_aer_mmio, result);
+	result = common_process(psdev, pci_channel_io_normal, XEN_PCI_OP_aer_mmio, result);
 
 	if (result == PCI_ERS_RESULT_NONE ||
 		result == PCI_ERS_RESULT_DISCONNECT) {
@@ -970,7 +970,7 @@ static void xen_pcibk_error_resume(struct pci_dev *dev)
 		kill_domain_by_device(psdev);
 		goto end;
 	}
-	common_process(psdev, 1, XEN_PCI_OP_aer_resume,
+	common_process(psdev, pci_channel_io_normal, XEN_PCI_OP_aer_resume,
 		       PCI_ERS_RESULT_RECOVERED);
 end:
 	if (psdev)
-- 
2.25.1