Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1523816 > unrolled thread
| Started by | Kirti Wankhede <kwankhede@nvidia.com> |
|---|---|
| First post | 2016-11-16 21:50 +0100 |
| Last post | 2016-11-21 12:00 +0100 |
| Articles | 2 — 2 participants |
Back to article view | Back to linux.kernel
This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by
below is the oldest one visible, not the original post.
[PATCH v14 17/22] vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() Kirti Wankhede <kwankhede@nvidia.com> - 2016-11-16 21:50 +0100
Re: [PATCH v14 17/22] vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() Auger Eric <eric.auger@redhat.com> - 2016-11-21 12:00 +0100
| From | Kirti Wankhede <kwankhede@nvidia.com> |
|---|---|
| Date | 2016-11-16 21:50 +0100 |
| Subject | [PATCH v14 17/22] vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() |
| Message-ID | <sEfjz-7Ip-1@gated-at.bofh.it> |
Updated vfio_platform_common.c file to use
vfio_set_irqs_validate_and_prepare()
Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Neo Jia <cjia@nvidia.com>
Change-Id: Id87cd6b78ae901610b39bf957974baa6f40cd7b0
---
drivers/vfio/platform/vfio_platform_common.c | 31 +++++++---------------------
1 file changed, 8 insertions(+), 23 deletions(-)
diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
index d78142830754..4c27f4be3c3d 100644
--- a/drivers/vfio/platform/vfio_platform_common.c
+++ b/drivers/vfio/platform/vfio_platform_common.c
@@ -364,36 +364,21 @@ static long vfio_platform_ioctl(void *device_data,
struct vfio_irq_set hdr;
u8 *data = NULL;
int ret = 0;
+ size_t data_size = 0;
minsz = offsetofend(struct vfio_irq_set, count);
if (copy_from_user(&hdr, (void __user *)arg, minsz))
return -EFAULT;
- if (hdr.argsz < minsz)
- return -EINVAL;
-
- if (hdr.index >= vdev->num_irqs)
- return -EINVAL;
-
- if (hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
- VFIO_IRQ_SET_ACTION_TYPE_MASK))
- return -EINVAL;
-
- if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
- size_t size;
-
- if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
- size = sizeof(uint8_t);
- else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
- size = sizeof(int32_t);
- else
- return -EINVAL;
-
- if (hdr.argsz - minsz < size)
- return -EINVAL;
+ ret = vfio_set_irqs_validate_and_prepare(&hdr, vdev->num_irqs,
+ vdev->num_irqs, &data_size);
+ if (ret)
+ return ret;
- data = memdup_user((void __user *)(arg + minsz), size);
+ if (data_size) {
+ data = memdup_user((void __user *)(arg + minsz),
+ data_size);
if (IS_ERR(data))
return PTR_ERR(data);
}
--
2.7.0
[toc] | [next] | [standalone]
| From | Auger Eric <eric.auger@redhat.com> |
|---|---|
| Date | 2016-11-21 12:00 +0100 |
| Subject | Re: [PATCH v14 17/22] vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare() |
| Message-ID | <sFUul-7g-9@gated-at.bofh.it> |
| In reply to | #1523816 |
Hi,
On 16/11/2016 21:46, Kirti Wankhede wrote:
> Updated vfio_platform_common.c file to use
> vfio_set_irqs_validate_and_prepare()
>
> Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
> Signed-off-by: Neo Jia <cjia@nvidia.com>
> Change-Id: Id87cd6b78ae901610b39bf957974baa6f40cd7b0
> ---
> drivers/vfio/platform/vfio_platform_common.c | 31 +++++++---------------------
> 1 file changed, 8 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
> index d78142830754..4c27f4be3c3d 100644
> --- a/drivers/vfio/platform/vfio_platform_common.c
> +++ b/drivers/vfio/platform/vfio_platform_common.c
> @@ -364,36 +364,21 @@ static long vfio_platform_ioctl(void *device_data,
> struct vfio_irq_set hdr;
> u8 *data = NULL;
> int ret = 0;
> + size_t data_size = 0;
>
> minsz = offsetofend(struct vfio_irq_set, count);
>
> if (copy_from_user(&hdr, (void __user *)arg, minsz))
> return -EFAULT;
>
> - if (hdr.argsz < minsz)
> - return -EINVAL;
> -
> - if (hdr.index >= vdev->num_irqs)
> - return -EINVAL;
> -
> - if (hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
> - VFIO_IRQ_SET_ACTION_TYPE_MASK))
> - return -EINVAL;
> -
> - if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
> - size_t size;
> -
> - if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
> - size = sizeof(uint8_t);
> - else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
> - size = sizeof(int32_t);
> - else
> - return -EINVAL;
> -
> - if (hdr.argsz - minsz < size)
> - return -EINVAL;
> + ret = vfio_set_irqs_validate_and_prepare(&hdr, vdev->num_irqs,
> + vdev->num_irqs, &data_size);
> + if (ret)
> + return ret;
>
> - data = memdup_user((void __user *)(arg + minsz), size);
> + if (data_size) {
> + data = memdup_user((void __user *)(arg + minsz),
> + data_size);
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Thanks
Eric
> if (IS_ERR(data))
> return PTR_ERR(data);
> }
>
[toc] | [prev] | [standalone]
Back to top | Article view | linux.kernel
csiph-web