aboutsummaryrefslogtreecommitdiff
path: root/drivers/pci/search.c
diff options
context:
space:
mode:
authorJiri Kosina <[email protected]>2020-04-01 12:26:12 +0200
committerJiri Kosina <[email protected]>2020-04-01 12:26:12 +0200
commitc9f289701540baeef9ac7c9977d67a7259f404db (patch)
treeac3c29d41da02ac735c9a12da78905842fbccd2f /drivers/pci/search.c
parent0aac6f9aaae5fba08963651d2ce49930145e118f (diff)
parent910a7e89cec65efad254c947ce2bf8bf5b370962 (diff)
Merge branch 'for-5.7/appleir' into for-linus
- small code cleanups in hid-appleir from Lucas Tanure
Diffstat (limited to 'drivers/pci/search.c')
-rw-r--r--drivers/pci/search.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index bade14002fd8..2061672954ee 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -32,6 +32,12 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
struct pci_bus *bus;
int ret;
+ /*
+ * The device may have an explicit alias requester ID for DMA where the
+ * requester is on another PCI bus.
+ */
+ pdev = pci_real_dma_dev(pdev);
+
ret = fn(pdev, pci_dev_id(pdev), data);
if (ret)
return ret;
@@ -41,9 +47,9 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
* DMA, iterate over that too.
*/
if (unlikely(pdev->dma_alias_mask)) {
- u8 devfn;
+ unsigned int devfn;
- for_each_set_bit(devfn, pdev->dma_alias_mask, U8_MAX) {
+ for_each_set_bit(devfn, pdev->dma_alias_mask, MAX_NR_DEVFNS) {
ret = fn(pdev, PCI_DEVID(pdev->bus->number, devfn),
data);
if (ret)