linux-kernel - [PATCH] misc: pci_endpoint_test: fix misuse of COMMAND

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Date:   Wed, 29 Dec 2021 06:07:24 +0000
From:   Li Chen <lchen@...arella.com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] misc: pci_endpoint_test: fix misuse of COMMAND_READ/WRITE

IIUC, COMMAND_WRITE should be set for pci_endpoint_test_write,
and COMMAND_READ should be set for pci_endpoint_test_read.

Signed-off-by: Li Chen <lchen@...arella.com>
---
 drivers/misc/pci_endpoint_test.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index 2ed7e3aaff3a8..ea7a90830932d 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -551,12 +551,12 @@ static bool pci_endpoint_test_write(struct pci_endpoint_test *test,
 	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);
 	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);
 	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,
-				 COMMAND_READ);
+				 COMMAND_WRITE);
 
 	wait_for_completion(&test->irq_raised);
 
 	reg = pci_endpoint_test_readl(test, PCI_ENDPOINT_TEST_STATUS);
-	if (reg & STATUS_READ_SUCCESS)
+	if (reg & STATUS_WRITE_SUCCESS)
 		ret = true;
 
 	dma_unmap_single(dev, orig_phys_addr, size + alignment,
@@ -643,7 +643,7 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test,
 	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_TYPE, irq_type);
 	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_IRQ_NUMBER, 1);
 	pci_endpoint_test_writel(test, PCI_ENDPOINT_TEST_COMMAND,
-				 COMMAND_WRITE);
+				 COMMAND_READ);
 
 	wait_for_completion(&test->irq_raised);
 
-- 
2.34.1

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