[PATCH] Export msi_remove_pci_irq_vectors

[Roland Dreier <roland@topspin.com>]

As a followup to my previous post about the request_mem_region in
msi.c, I noticed that the region is only released in
msi_remove_pci_irq_vectors().  Based on the fact that this function is
declared in linux/pci.h (and stubbed out if CONFIG_PCI_USE_VECTOR is
not defined), I'm guessing that the intent is for a device driver to
unconditionally call this when exiting.

However, a module can't call msi_remove_pci_irq_vectors unless the
symbol is exported... so if this is the way to do things, please apply
this patch.

On the other hand, MSI-HOWTO.txt seems to imply that the 0th MSI
vector should be cleaned up just by calling free_irq... so should
pci_disable_msi be calling msi_remove_pci_irq_vectors?

 - Roland

Index: linux-2.6.7/drivers/pci/msi.c
===================================================================
--- linux-2.6.7.orig/drivers/pci/msi.c	2004-06-15 22:20:03.000000000 -0700
+++ linux-2.6.7/drivers/pci/msi.c	2004-06-21 20:51:33.000000000 -0700
@@ -1011,3 +1011,4 @@
 EXPORT_SYMBOL(pci_enable_msi);
 EXPORT_SYMBOL(msi_alloc_vectors);
 EXPORT_SYMBOL(msi_free_vectors);
+EXPORT_SYMBOL(msi_remove_pci_irq_vectors);