diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2014-08-08 18:39:16 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2014-08-08 18:39:16 +0200 |
| commit | 9b936c960f22954bfb89f2fefd8f96916bb42908 (patch) | |
| tree | 2aa14e34174866e259a9336b02682ec9b2844225 | |
| parent | drivers/vfio: Allow EEH to be built as module (diff) | |
| download | linux-9b936c960f22954bfb89f2fefd8f96916bb42908.tar.xz linux-9b936c960f22954bfb89f2fefd8f96916bb42908.zip | |
drivers/vfio: Enable VFIO if EEH is not supported
The existing vfio_pci_open() fails upon error returned from
vfio_spapr_pci_eeh_open(), which breaks POWER7's P5IOC2 PHB
support which this patch brings back.
The patch fixes the issue by dropping the return value of
vfio_spapr_pci_eeh_open().
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 6 | ||||
| -rw-r--r-- | drivers/vfio/vfio_spapr_eeh.c | 4 | ||||
| -rw-r--r-- | include/linux/vfio.h | 5 |
3 files changed, 5 insertions, 10 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 1651c0769b72..f7825332a325 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -200,11 +200,7 @@ static int vfio_pci_open(void *device_data) if (ret) goto error; - ret = vfio_spapr_pci_eeh_open(vdev->pdev); - if (ret) { - vfio_pci_disable(vdev); - goto error; - } + vfio_spapr_pci_eeh_open(vdev->pdev); } vdev->refcnt++; error: diff --git a/drivers/vfio/vfio_spapr_eeh.c b/drivers/vfio/vfio_spapr_eeh.c index 4779cace8036..86dfceb9201f 100644 --- a/drivers/vfio/vfio_spapr_eeh.c +++ b/drivers/vfio/vfio_spapr_eeh.c @@ -19,9 +19,9 @@ #define DRIVER_DESC "VFIO IOMMU SPAPR EEH" /* We might build address mapping here for "fast" path later */ -int vfio_spapr_pci_eeh_open(struct pci_dev *pdev) +void vfio_spapr_pci_eeh_open(struct pci_dev *pdev) { - return eeh_dev_open(pdev); + eeh_dev_open(pdev); } EXPORT_SYMBOL_GPL(vfio_spapr_pci_eeh_open); diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 224128a96b7f..d3204115f15d 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -100,15 +100,14 @@ extern long vfio_external_check_extension(struct vfio_group *group, struct pci_dev; #ifdef CONFIG_EEH -extern int vfio_spapr_pci_eeh_open(struct pci_dev *pdev); +extern void vfio_spapr_pci_eeh_open(struct pci_dev *pdev); extern void vfio_spapr_pci_eeh_release(struct pci_dev *pdev); extern long vfio_spapr_iommu_eeh_ioctl(struct iommu_group *group, unsigned int cmd, unsigned long arg); #else -static inline int vfio_spapr_pci_eeh_open(struct pci_dev *pdev) +static inline void vfio_spapr_pci_eeh_open(struct pci_dev *pdev) { - return 0; } static inline void vfio_spapr_pci_eeh_release(struct pci_dev *pdev) |