diff mbox series

[RFC,05/10] vdpa: remove WARN_ON() in the get/set_config callbacks

Message ID 20210216094454.82106-6-sgarzare@redhat.com (mailing list archive)
State New, archived
Headers show
Series vdpa: get/set_config() rework | expand

Commit Message

Stefano Garzarella Feb. 16, 2021, 9:44 a.m. UTC 
vdpa_get_config() and vdpa_set_config() now check parameters before
calling callbacks, so we can remove these warnings.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
Maybe we can skip this patch and leave the WARN_ONs in place.
What do you recommend?
---
 drivers/vdpa/ifcvf/ifcvf_base.c | 3 +--
 drivers/vdpa/ifcvf/ifcvf_main.c | 2 --
 2 files changed, 1 insertion(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c
index f2a128e56de5..5941ecf934d0 100644
--- a/drivers/vdpa/ifcvf/ifcvf_base.c
+++ b/drivers/vdpa/ifcvf/ifcvf_base.c
@@ -222,7 +222,6 @@  void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset,
 	u8 old_gen, new_gen, *p;
 	int i;
 
-	WARN_ON(offset + length > sizeof(struct virtio_net_config));
 	do {
 		old_gen = ifc_ioread8(&hw->common_cfg->config_generation);
 		p = dst;
@@ -240,7 +239,7 @@  void ifcvf_write_net_config(struct ifcvf_hw *hw, u64 offset,
 	int i;
 
 	p = src;
-	WARN_ON(offset + length > sizeof(struct virtio_net_config));
+
 	for (i = 0; i < length; i++)
 		ifc_iowrite8(*p++, hw->net_cfg + offset + i);
 }
diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index 2443271e17d2..e55f88c57461 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -343,7 +343,6 @@  static void ifcvf_vdpa_get_config(struct vdpa_device *vdpa_dev,
 {
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
 
-	WARN_ON(offset + len > sizeof(struct virtio_net_config));
 	ifcvf_read_net_config(vf, offset, buf, len);
 }
 
@@ -353,7 +352,6 @@  static void ifcvf_vdpa_set_config(struct vdpa_device *vdpa_dev,
 {
 	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
 
-	WARN_ON(offset + len > sizeof(struct virtio_net_config));
 	ifcvf_write_net_config(vf, offset, buf, len);
 }