diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index aab9d5115a5f..ed9447aee863 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -4959,6 +4959,13 @@ static resource_size_t pci_specified_resource_alignment(struct pci_dev *dev) spin_lock(&resource_alignment_lock); p = resource_alignment_param; + if (!*p) + goto out; + if (pci_has_flag(PCI_PROBE_ONLY)) { + pr_info_once("PCI: Ignoring requested alignments (PCI_PROBE_ONLY)\n"); + goto out; + } + while (*p) { count = 0; if (sscanf(p, "%d%n", &align_order, &count) == 1 && @@ -5023,6 +5030,7 @@ static resource_size_t pci_specified_resource_alignment(struct pci_dev *dev) } p++; } +out: spin_unlock(&resource_alignment_lock); return align; } @@ -5063,6 +5071,12 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev) r = &dev->resource[i]; if (!(r->flags & IORESOURCE_MEM)) continue; + if (r->flags & IORESOURCE_PCI_FIXED) { + dev_info(&dev->dev, "Ignoring requested alignment for BAR%d: %pR\n", + i, r); + continue; + } + size = resource_size(r); if (size < align) { size = align; |