diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2021-07-15 21:44:18 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-07-21 07:39:16 +0300 |
| commit | 5fee6567ec387088ec965ee60c63051bbe102cac (patch) | |
| tree | 0a91c0e7fd7051197b9b5e082f5e5047d69050a9 /drivers/dma/idxd/init.c | |
| parent | c05257b5600bb35a580ecdb25695efff26326d59 (diff) | |
| download | linux-5fee6567ec387088ec965ee60c63051bbe102cac.tar.xz | |
dmaengine: idxd: add type to driver in order to allow device matching
Add an array of support device types to the idxd_device_driver
definition in order to enable simple matching of device type to a
given driver. The deprecated / omnibus dsa_drv driver specifies
IDXD_DEV_NONE as its only role is to service legacy userspace (old
accel-config) directed bind requests and route them to them the proper
driver. It need not attach to a device when the bus is autoprobed. The
accel-config tooling is being updated to drop its dependency on this
deprecated bind scheme.
Reviewed-by: Dan Willliams <dan.j.williams@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162637465882.744545.17456174666211577867.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/idxd/init.c')
| -rw-r--r-- | drivers/dma/idxd/init.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c index 5b628e6c04bf..544ff7137292 100644 --- a/drivers/dma/idxd/init.c +++ b/drivers/dma/idxd/init.c @@ -879,6 +879,11 @@ int __idxd_driver_register(struct idxd_device_driver *idxd_drv, struct module *o { struct device_driver *drv = &idxd_drv->drv; + if (!idxd_drv->type) { + pr_debug("driver type not set (%ps)\n", __builtin_return_address(0)); + return -EINVAL; + } + drv->name = idxd_drv->name; drv->bus = &dsa_bus_type; drv->owner = owner; |