diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2018-08-03 01:14:43 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-08-08 12:49:31 +0100 |
| commit | b3f96b4f998997bbe93a4d60d754a5beb381de61 (patch) | |
| tree | 6e7adace58246ad55480ab56b57f7a05f6f1993a /drivers | |
| parent | 3839b4e8b7dee02c13bd20237dc84b5022e8bdd4 (diff) | |
pci: sandbox: emul: Fix the call to pci_bus_find_devfn()
With the newly added test cases for PCI configuration access, we get:
=> ut dm pci_busdev
Test: dm_test_pci_busdev: pci.c
test/dm/pci.c:49, dm_test_pci_busdev(): SANDBOX_PCI_VENDOR_ID == vendor:
Expected 4660, got 65535
Test: dm_test_pci_busdev: pci.c (flat tree)
test/dm/pci.c:49, dm_test_pci_busdev(): SANDBOX_PCI_VENDOR_ID == vendor:
Expected 4660, got 65535
Failures: 2
The bug only shows up when bus number is not equal to zero. This is
caused by the plain find_devfn parameter is passed to function call
pci_bus_find_devfn(), inside which find_devfn is compared to devfn
in the device's pplat structure. However pplat->devfn does not carry
the bus number. Fix this by passing find_devfn with bus number masked.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/pci-emul-uclass.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/pci-emul-uclass.c b/drivers/pci/pci-emul-uclass.c index 79e2c1420e..8570a5da20 100644 --- a/drivers/pci/pci-emul-uclass.c +++ b/drivers/pci/pci-emul-uclass.c @@ -21,7 +21,7 @@ int sandbox_pci_get_emul(struct udevice *bus, pci_dev_t find_devfn, struct udevice *dev; int ret; - ret = pci_bus_find_devfn(bus, find_devfn, &dev); + ret = pci_bus_find_devfn(bus, PCI_MASK_BUS(find_devfn), &dev); if (ret) { debug("%s: Could not find emulator for dev %x\n", __func__, find_devfn); |