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From: Denis Efremov <efremov@linux.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Denis Efremov <efremov@linux.com>,
	linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
	Andrew Murray <andrew.murray@arm.com>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Subject: [PATCH v3 05/26] misc: pci_endpoint_test: Use PCI_STD_NUM_BARS
Date: Mon, 16 Sep 2019 23:41:37 +0300	[thread overview]
Message-ID: <20190916204158.6889-6-efremov@linux.com> (raw)
In-Reply-To: <20190916204158.6889-1-efremov@linux.com>

To iterate through all possible BARs, loop conditions refactored to the
*number* of BARs "i < PCI_STD_NUM_BARS", instead of the index of the last
valid BAR "i <= BAR_5". This is more idiomatic C style and allows to avoid
the fencepost error. Array definitions changed to PCI_STD_NUM_BARS where
appropriate.

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Denis Efremov <efremov@linux.com>
---
 drivers/misc/pci_endpoint_test.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index 6e208a060a58..a5e317073d95 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -94,7 +94,7 @@ enum pci_barno {
 struct pci_endpoint_test {
 	struct pci_dev	*pdev;
 	void __iomem	*base;
-	void __iomem	*bar[6];
+	void __iomem	*bar[PCI_STD_NUM_BARS];
 	struct completion irq_raised;
 	int		last_irq;
 	int		num_irqs;
@@ -687,7 +687,7 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev,
 	if (!pci_endpoint_test_request_irq(test))
 		goto err_disable_irq;
 
-	for (bar = BAR_0; bar <= BAR_5; bar++) {
+	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
 		if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
 			base = pci_ioremap_bar(pdev, bar);
 			if (!base) {
@@ -740,7 +740,7 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev,
 	ida_simple_remove(&pci_endpoint_test_ida, id);
 
 err_iounmap:
-	for (bar = BAR_0; bar <= BAR_5; bar++) {
+	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
 		if (test->bar[bar])
 			pci_iounmap(pdev, test->bar[bar]);
 	}
@@ -771,7 +771,7 @@ static void pci_endpoint_test_remove(struct pci_dev *pdev)
 	misc_deregister(&test->miscdev);
 	kfree(misc_device->name);
 	ida_simple_remove(&pci_endpoint_test_ida, id);
-	for (bar = BAR_0; bar <= BAR_5; bar++) {
+	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
 		if (test->bar[bar])
 			pci_iounmap(pdev, test->bar[bar]);
 	}
-- 
2.21.0


  parent reply	other threads:[~2019-09-16 20:44 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190916204158.6889-1-efremov@linux.com>
2019-09-16 20:41 ` [PATCH v3 02/26] PCI: hv: Use PCI_STD_NUM_BARS Denis Efremov
2019-09-16 21:19   ` Haiyang Zhang
2019-09-26 22:05   ` Bjorn Helgaas
2019-09-27 12:43     ` Bjorn Helgaas
2019-09-27 23:40   ` [PATCH RESEND v3 00/26] Add definition for the number of standard PCI BARs Denis Efremov
2019-09-30 19:58     ` Bjorn Helgaas
2019-09-27 23:43   ` [PATCH RESEND v3 01/26] PCI: Add define " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 03/26] PCI: dwc: Use PCI_STD_NUM_BARS Denis Efremov
2019-09-17  8:36   ` Gustavo Pimentel
2019-09-16 20:41 ` [PATCH v3 04/26] PCI: endpoint: " Denis Efremov
2019-09-18  9:19   ` Andrew Murray
2019-09-18 14:20     ` Denis Efremov
2019-09-16 20:41 ` Denis Efremov [this message]
2019-09-16 20:41 ` [PATCH v3 06/26] s390/pci: " Denis Efremov
2019-09-18  8:58   ` Andrew Murray
2019-09-18 14:26     ` Denis Efremov
2019-09-19  8:00       ` Andrew Murray
2019-09-30 19:47     ` Bjorn Helgaas
2019-09-16 20:41 ` [PATCH v3 07/26] x86/PCI: Loop using PCI_STD_NUM_BARS Denis Efremov
2019-09-16 20:41 ` [PATCH v3 08/26] alpha/PCI: Use PCI_STD_NUM_BARS Denis Efremov
2019-09-16 20:41 ` [PATCH v3 09/26] ia64: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 10/26] stmmac: pci: Loop using PCI_STD_NUM_BARS Denis Efremov
2019-09-16 20:41 ` [PATCH v3 11/26] net: dwc-xlgmac: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 12/26] ixgb: use PCI_STD_NUM_BARS Denis Efremov
2019-09-16 20:41 ` [PATCH v3 13/26] e1000: Use PCI_STD_NUM_BARS Denis Efremov
2019-09-18  9:05   ` Andrew Murray
2019-09-16 20:41 ` [PATCH v3 14/26] rapidio/tsi721: Loop using PCI_STD_NUM_BARS Denis Efremov
2019-09-16 20:41 ` [PATCH v3 15/26] efifb: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 16/26] fbmem: use PCI_STD_NUM_BARS Denis Efremov
2019-09-16 20:41 ` [PATCH v3 17/26] vfio_pci: Loop using PCI_STD_NUM_BARS Denis Efremov
2019-09-18  9:17   ` Andrew Murray
2019-09-18 14:31     ` Denis Efremov
2019-09-19  8:00       ` Andrew Murray
2019-09-16 20:41 ` [PATCH v3 18/26] scsi: pm80xx: Use PCI_STD_NUM_BARS Denis Efremov
2019-09-17  9:06   ` Jinpu Wang
2019-09-24  2:22   ` Martin K. Petersen
2019-09-24  9:44     ` Denis Efremov
2019-09-26  2:29     ` Bjorn Helgaas
2019-09-26 22:51       ` Martin K. Petersen
2019-09-16 20:41 ` [PATCH v3 19/26] ata: sata_nv: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 20/26] staging: gasket: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 21/26] serial: 8250_pci: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 22/26] pata_atp867x: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 23/26] memstick: use PCI_STD_NUM_BARS Denis Efremov
2019-09-20  7:42   ` Ulf Hansson
2019-09-20  8:05     ` Denis Efremov
2019-09-16 20:41 ` [PATCH v3 24/26] USB: core: Use PCI_STD_NUM_BARS Denis Efremov
2019-09-16 20:41 ` [PATCH v3 25/26] usb: pci-quirks: " Denis Efremov
2019-09-16 20:41 ` [PATCH v3 26/26] devres: use PCI_STD_NUM_BARS Denis Efremov

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