Re: [PATCH] vhost-vdpa: Remove usage of the deprecated ida_simple_xx() API

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Le 14/04/2024 à 10:35, Michael S. Tsirkin a écrit :
On Mon, Jan 15, 2024 at 09:35:50PM +0100, Christophe JAILLET wrote:
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

Note that the upper limit of ida_simple_get() is exclusive, buInputt the one of

What's buInputt? But?

Yes, sorry. It is "but".

Let me know if I should send a v2, or if it can be fixed when it is applied.

CJ


ida_alloc_max() is inclusive. So a -1 has been added when needed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>


Jason, wanna ack?

---
  drivers/vhost/vdpa.c | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index bc4a51e4638b..849b9d2dd51f 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -1534,7 +1534,7 @@ static void vhost_vdpa_release_dev(struct device *device)
  	struct vhost_vdpa *v =
  	       container_of(device, struct vhost_vdpa, dev);
- ida_simple_remove(&vhost_vdpa_ida, v->minor);
+	ida_free(&vhost_vdpa_ida, v->minor);
  	kfree(v->vqs);
  	kfree(v);
  }
@@ -1557,8 +1557,8 @@ static int vhost_vdpa_probe(struct vdpa_device *vdpa)
  	if (!v)
  		return -ENOMEM;
- minor = ida_simple_get(&vhost_vdpa_ida, 0,
-			       VHOST_VDPA_DEV_MAX, GFP_KERNEL);
+	minor = ida_alloc_max(&vhost_vdpa_ida, VHOST_VDPA_DEV_MAX - 1,
+			      GFP_KERNEL);
  	if (minor < 0) {
  		kfree(v);
  		return minor;
--
2.43.0








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