Re: [PATCH] PCI: Clean up printks in msi.c

[Roland Dreier]

    Greg> I agree.  Roland, care to change it?

No problem, here's the patch without any "success" message.


Add "PCI:" prefixes and fix up the formatting and grammar of printks
in drivers/pci/msi.c.  The main motivation was to fix the shouting
"MSI INIT SUCCESS" message printed when an MSI-using driver is first
started, but while we're at it we might as well tidy up all the messages.

Signed-off-by: Roland Dreier <roland@xxxxxxxxxxx>

Index: linux-bk/drivers/pci/msi.c
===================================================================
--- linux-bk.orig/drivers/pci/msi.c	2005-01-10 08:32:50.208912010 -0800
+++ linux-bk/drivers/pci/msi.c	2005-01-10 09:37:37.868724920 -0800
@@ -374,19 +374,18 @@
 
 	if ((status = msi_cache_init()) < 0) {
 		pci_msi_enable = 0;
-		printk(KERN_INFO "WARNING: MSI INIT FAILURE\n");
+		printk(KERN_WARNING "PCI: MSI cache init failed\n");
 		return status;
 	}
 	last_alloc_vector = assign_irq_vector(AUTO_ASSIGN);
 	if (last_alloc_vector < 0) {
 		pci_msi_enable = 0;
-		printk(KERN_INFO "WARNING: ALL VECTORS ARE BUSY\n");
+		printk(KERN_WARNING "PCI: No interrupt vectors available for MSI\n");
 		status = -EBUSY;
 		return status;
 	}
 	vector_irq[last_alloc_vector] = 0;
 	nr_released_vectors++;
-	printk(KERN_INFO "MSI INIT SUCCESS\n");
 
 	return status;
 }
@@ -736,7 +735,9 @@
 	/* Check whether driver already requested for MSI-X vectors */
    	if ((pos = pci_find_capability(dev, PCI_CAP_ID_MSIX)) > 0 &&
 		!msi_lookup_vector(dev, PCI_CAP_ID_MSIX)) {
-			printk(KERN_INFO "Can't enable MSI. Device already had MSI-X vectors assigned\n");
+			printk(KERN_INFO "PCI: %s: Can't enable MSI.  "
+			       "Device already has MSI-X vectors assigned\n",
+			       pci_name(dev));
 			dev->irq = temp;
 			return -EINVAL;
 	}
@@ -774,9 +775,9 @@
 	}
 	if (entry->msi_attrib.state) {
 		spin_unlock_irqrestore(&msi_lock, flags);
-		printk(KERN_DEBUG "Driver[%d:%d:%d] unloaded wo doing free_irq on vector->%d\n",
-		dev->bus->number, PCI_SLOT(dev->devfn),	PCI_FUNC(dev->devfn),
-		dev->irq);
+		printk(KERN_WARNING "PCI: %s: pci_disable_msi() called without "
+		       "free_irq() on MSI vector %d\n",
+		       pci_name(dev), dev->irq);
 		BUG_ON(entry->msi_attrib.state > 0);
 	} else {
 		vector_irq[dev->irq] = 0; /* free it */
@@ -982,7 +983,9 @@
 	/* Check whether driver already requested for MSI vector */
    	if (pci_find_capability(dev, PCI_CAP_ID_MSI) > 0 &&
 		!msi_lookup_vector(dev, PCI_CAP_ID_MSI)) {
-		printk(KERN_INFO "Can't enable MSI-X. Device already had MSI vector assigned\n");
+		printk(KERN_INFO "PCI: %s: Can't enable MSI-X.  "
+		       "Device already has an MSI vector assigned\n",
+		       pci_name(dev));
 		dev->irq = temp;
 		return -EINVAL;
 	}
@@ -1050,9 +1053,9 @@
 		spin_unlock_irqrestore(&msi_lock, flags);
 		if (warning) {
 			dev->irq = temp;
-			printk(KERN_DEBUG "Driver[%d:%d:%d] unloaded wo doing free_irq on all vectors\n",
-			dev->bus->number, PCI_SLOT(dev->devfn),
-			PCI_FUNC(dev->devfn));
+			printk(KERN_WARNING "PCI: %s: pci_disable_msix() called without "
+			       "free_irq() on all MSI-X vectors\n",
+			       pci_name(dev));
 			BUG_ON(warning > 0);
 		} else {
 			dev->irq = temp;
@@ -1088,9 +1091,9 @@
 		state = msi_desc[dev->irq]->msi_attrib.state;
 		spin_unlock_irqrestore(&msi_lock, flags);
 		if (state) {
-			printk(KERN_DEBUG "Driver[%d:%d:%d] unloaded wo doing free_irq on vector->%d\n",
-			dev->bus->number, PCI_SLOT(dev->devfn),
-			PCI_FUNC(dev->devfn), dev->irq);
+			printk(KERN_WARNING "PCI: %s: msi_remove_pci_irq_vectors() "
+			       "called without free_irq() on MSI vector %d\n",
+			       pci_name(dev), dev->irq);
 			BUG_ON(state > 0);
 		} else /* Release MSI vector assigned to this device */
 			msi_free_vector(dev, dev->irq, 0);
@@ -1132,9 +1135,9 @@
 			iounmap(base);
 			release_mem_region(phys_addr, PCI_MSIX_ENTRY_SIZE *
 				multi_msix_capable(control));
-			printk(KERN_DEBUG "Driver[%d:%d:%d] unloaded wo doing free_irq on all vectors\n",
-				dev->bus->number, PCI_SLOT(dev->devfn),
-				PCI_FUNC(dev->devfn));
+			printk(KERN_WARNING "PCI: %s: msi_remove_pci_irq_vectors() "
+			       "called without free_irq() on all MSI-X vectors\n",
+			       pci_name(dev));
 			BUG_ON(warning > 0);
 		}
 		dev->irq = temp;		/* Restore IOAPIC IRQ */

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