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PCI: Make pcim_iounmap_region() a public function

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The function pcim_iounmap_regions() is problematic because it uses a
bitmask mechanism to release / iounmap multiple BARs at once. It, thus,
prevents getting rid of the problematic iomap table mechanism which was
deprecated in commit e354bb84a4 ("PCI: Deprecate pcim_iomap_table(),
pcim_iomap_regions_request_all()").

pcim_iounmap_region() does not have that problem. Make it public as the
successor of pcim_iounmap_regions().

Link: https://lore.kernel.org/r/20241016094911.24818-3-pstanner@redhat.com
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Philipp Stanner
2024-10-16 11:49:04 +02:00
committed by Bjorn Helgaas
parent 6d9c592125
commit 4a6afd6073
2 changed files with 3 additions and 1 deletions
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3
drivers/pci/devres.c
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@@ -773,7 +773,7 @@ EXPORT_SYMBOL(pcim_iomap_region);
* Unmap a BAR and release its region manually. Only pass BARs that were
* previously mapped by pcim_iomap_region().
*/
static void pcim_iounmap_region(struct pci_dev *pdev, int bar)
void pcim_iounmap_region(struct pci_dev *pdev, int bar)
{
struct pcim_addr_devres res_searched;
@@ -784,6 +784,7 @@ static void pcim_iounmap_region(struct pci_dev *pdev, int bar)
devres_release(&pdev->dev, pcim_addr_resource_release,
pcim_addr_resources_match, &res_searched);
}
EXPORT_SYMBOL(pcim_iounmap_region);
/**
* pcim_iomap_regions - Request and iomap PCI BARs (DEPRECATED)