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Subject[PATCH v2 5/5] misc: pci_endpoint_test: Use full pci-endpoint-test name in request irq
Date
Use full pci-endpoint-test name in request irq, so that it's easy to
profile the device that actually raised the interrupt.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/misc/pci_endpoint_test.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index ef21d2d2f8ae..bc3ae4a4fb5c 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -109,6 +109,7 @@ struct pci_endpoint_test {
struct miscdevice miscdev;
enum pci_barno test_reg_bar;
size_t alignment;
+ const char *name;
};

struct pci_endpoint_test_data {
@@ -227,7 +228,7 @@ static bool pci_endpoint_test_request_irq(struct pci_endpoint_test *test)
for (i = 0; i < test->num_irqs; i++) {
err = devm_request_irq(dev, pci_irq_vector(pdev, i),
pci_endpoint_test_irqhandler,
- IRQF_SHARED, DRV_MODULE_NAME, test);
+ IRQF_SHARED, test->name, test);
if (err)
goto fail;
}
@@ -807,9 +808,6 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev,
if (!pci_endpoint_test_alloc_irq_vectors(test, irq_type))
goto err_disable_irq;

- if (!pci_endpoint_test_request_irq(test))
- goto err_disable_irq;
-
for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
base = pci_ioremap_bar(pdev, bar);
@@ -839,12 +837,21 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev,
}

snprintf(name, sizeof(name), DRV_MODULE_NAME ".%d", id);
+ test->name = kstrdup(name, GFP_KERNEL);
+ if (!test->name) {
+ err = -ENOMEM;
+ goto err_ida_remove;
+ }
+
+ if (!pci_endpoint_test_request_irq(test))
+ goto err_kfree_test_name;
+
misc_device = &test->miscdev;
misc_device->minor = MISC_DYNAMIC_MINOR;
misc_device->name = kstrdup(name, GFP_KERNEL);
if (!misc_device->name) {
err = -ENOMEM;
- goto err_ida_remove;
+ goto err_release_irq;
}
misc_device->fops = &pci_endpoint_test_fops,

@@ -859,6 +866,12 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev,
err_kfree_name:
kfree(misc_device->name);

+err_release_irq:
+ pci_endpoint_test_release_irq(test);
+
+err_kfree_test_name:
+ kfree(test->name);
+
err_ida_remove:
ida_simple_remove(&pci_endpoint_test_ida, id);

@@ -867,7 +880,6 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev,
if (test->bar[bar])
pci_iounmap(pdev, test->bar[bar]);
}
- pci_endpoint_test_release_irq(test);

err_disable_irq:
pci_endpoint_test_free_irq_vectors(test);
@@ -893,6 +905,7 @@ static void pci_endpoint_test_remove(struct pci_dev *pdev)

misc_deregister(&test->miscdev);
kfree(misc_device->name);
+ kfree(test->name);
ida_simple_remove(&pci_endpoint_test_ida, id);
for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
if (test->bar[bar])
--
2.17.1
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