linux-kernel - [PATCH V2 1/4] vdpa_sim: switch to use __vdpa_alloc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20221222050052.20785-2-jasowang@redhat.com>
Date:   Thu, 22 Dec 2022 13:00:49 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     mst@...hat.com, jasowang@...hat.com
Cc:     sgarzare@...hat.com, eperezma@...hat.com,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH V2 1/4] vdpa_sim: switch to use __vdpa_alloc_device()

This allows us to control the allocation size of the structure.

Signed-off-by: Jason Wang <jasowang@...hat.com>
---
 drivers/vdpa/vdpa_sim/vdpa_sim.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index b071f0d842fb..757afef86ba0 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -250,6 +250,7 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
 			       const struct vdpa_dev_set_config *config)
 {
 	const struct vdpa_config_ops *ops;
+	struct vdpa_device *vdpa;
 	struct vdpasim *vdpasim;
 	struct device *dev;
 	int i, ret = -ENOMEM;
@@ -267,14 +268,16 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
 	else
 		ops = &vdpasim_config_ops;
 
-	vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL, ops,
-				    dev_attr->ngroups, dev_attr->nas,
-				    dev_attr->name, false);
-	if (IS_ERR(vdpasim)) {
-		ret = PTR_ERR(vdpasim);
+	vdpa = __vdpa_alloc_device(NULL, ops,
+				   dev_attr->ngroups, dev_attr->nas,
+				   sizeof(struct vdpasim),
+				   dev_attr->name, false);
+	if (IS_ERR(vdpa)) {
+		ret = PTR_ERR(vdpa);
 		goto err_alloc;
 	}
 
+	vdpasim = vdpa_to_sim(vdpa);
 	vdpasim->dev_attr = *dev_attr;
 	INIT_WORK(&vdpasim->work, dev_attr->work_fn);
 	spin_lock_init(&vdpasim->lock);
-- 
2.25.1