If there is no driver match function, the driver core assumes that each
candidate pair (driver, device) matches, see driver_match_device().
Drop the matrix bus's match function that always returned 1 and so
implements the same behaviour as when there is no match function
Signed-off-by: Lizhe <[email protected]>
---
drivers/s390/crypto/vfio_ap_drv.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/s390/crypto/vfio_ap_drv.c b/drivers/s390/crypto/vfio_ap_drv.c
index 997b524bdd2b..9341c000da41 100644
--- a/drivers/s390/crypto/vfio_ap_drv.c
+++ b/drivers/s390/crypto/vfio_ap_drv.c
@@ -59,14 +59,8 @@ static void vfio_ap_matrix_dev_release(struct device *dev)
kfree(matrix_dev);
}
-static int matrix_bus_match(struct device *dev, struct device_driver *drv)
-{
- return 1;
-}
-
static struct bus_type matrix_bus = {
.name = "matrix",
- .match = &matrix_bus_match,
};
static struct device_driver matrix_driver = {
--
2.34.1
Reviewed-by: Tony Krowiak <[email protected]>
On 3/19/23 12:19 AM, Lizhe wrote:
> If there is no driver match function, the driver core assumes that each
> candidate pair (driver, device) matches, see driver_match_device().
>
> Drop the matrix bus's match function that always returned 1 and so
> implements the same behaviour as when there is no match function
>
> Signed-off-by: Lizhe <[email protected]>
> ---
> drivers/s390/crypto/vfio_ap_drv.c | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/drivers/s390/crypto/vfio_ap_drv.c b/drivers/s390/crypto/vfio_ap_drv.c
> index 997b524bdd2b..9341c000da41 100644
> --- a/drivers/s390/crypto/vfio_ap_drv.c
> +++ b/drivers/s390/crypto/vfio_ap_drv.c
> @@ -59,14 +59,8 @@ static void vfio_ap_matrix_dev_release(struct device *dev)
> kfree(matrix_dev);
> }
>
> -static int matrix_bus_match(struct device *dev, struct device_driver *drv)
> -{
> - return 1;
> -}
> -
> static struct bus_type matrix_bus = {
> .name = "matrix",
> - .match = &matrix_bus_match,
> };
>
> static struct device_driver matrix_driver = {
On Sun, Mar 19, 2023 at 12:19:41PM +0800, Lizhe wrote:
> If there is no driver match function, the driver core assumes that each
> candidate pair (driver, device) matches, see driver_match_device().
>
> Drop the matrix bus's match function that always returned 1 and so
> implements the same behaviour as when there is no match function
>
> Signed-off-by: Lizhe <[email protected]>
> ---
> drivers/s390/crypto/vfio_ap_drv.c | 6 ------
> 1 file changed, 6 deletions(-)
Applied.