From: Hans Verkuil <hansverk@cisco.com>
To: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Cc: Linux Media Mailing List <linux-media@vger.kernel.org>,
Mauro Carvalho Chehab <mchehab@infradead.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Daniel Mentz <danielmentz@google.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: Re: [PATCH 5/5] media: v4l2-compat-ioctl32: better name userspace pointers
Date: Tue, 17 Apr 2018 12:37:39 +0200 [thread overview]
Message-ID: <1d0c4413-9eb3-fbc0-e457-fdb69d46ad7d@cisco.com> (raw)
In-Reply-To: <68f69eadbcea5e8030867bf2e6abcbd0aeb3f6ea.1523960171.git.mchehab@s-opensource.com>
On 04/17/18 12:20, Mauro Carvalho Chehab wrote:
> In the past, "up" were an acronym for "user pointer" and "kp" for
> "kernel pointer". However, since a1dfb4c48cc1 ("media:
> v4l2-compat-ioctl32.c: refactor compat ioctl32 logic"), both
> are now __user pointers.
>
> So, the usage of "kp" is really misleading there. So, rename
> both to just "p32" and "p64" everywhere it occurs, in order to
> make peace with this file's namespace.
>
> There are two exceptions to "up/kp" nomenclature: at
> alloc_userspace() and at do_video_ioctl().
>
> There, a new userspace pointer were allocated, in order to store
> the 64 bits version of the ioctl. Those were called as "up_native",
> with is, IMHO, an even worse name, as "native" could mislead of
> being the arguments that were filled from userspace. I almost
> renamed it to just "p64", but, after thinking more about that,
> it sounded better to call it as "new_p64", as this makes clearer
> that this is the data structure that was allocated inside this
> file in order to be used to pass/retrieve data when calling the
> 64-bit ready file->f_op->unlocked_ioctl() function.
Looks good to me, thanks for doing this!
Regards,
Hans
>
> Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> Suggested-by: Hans Verkuil <hverkuil@xs4all.nl>
> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
> ---
> drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 588 +++++++++++++-------------
> 1 file changed, 294 insertions(+), 294 deletions(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
> index c951ac3faf46..8c05dd9660d3 100644
> --- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
> +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
> @@ -56,8 +56,8 @@ struct v4l2_window32 {
> __u8 global_alpha;
> };
>
> -static int get_v4l2_window32(struct v4l2_window __user *kp,
> - struct v4l2_window32 __user *up,
> +static int get_v4l2_window32(struct v4l2_window __user *p64,
> + struct v4l2_window32 __user *p32,
> void __user *aux_buf, u32 aux_space)
> {
> struct v4l2_clip32 __user *uclips;
> @@ -65,26 +65,26 @@ static int get_v4l2_window32(struct v4l2_window __user *kp,
> compat_caddr_t p;
> u32 clipcount;
>
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - copy_in_user(&kp->w, &up->w, sizeof(up->w)) ||
> - assign_in_user(&kp->field, &up->field) ||
> - assign_in_user(&kp->chromakey, &up->chromakey) ||
> - assign_in_user(&kp->global_alpha, &up->global_alpha) ||
> - get_user(clipcount, &up->clipcount) ||
> - put_user(clipcount, &kp->clipcount))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + copy_in_user(&p64->w, &p32->w, sizeof(p32->w)) ||
> + assign_in_user(&p64->field, &p32->field) ||
> + assign_in_user(&p64->chromakey, &p32->chromakey) ||
> + assign_in_user(&p64->global_alpha, &p32->global_alpha) ||
> + get_user(clipcount, &p32->clipcount) ||
> + put_user(clipcount, &p64->clipcount))
> return -EFAULT;
> if (clipcount > 2048)
> return -EINVAL;
> if (!clipcount)
> - return put_user(NULL, &kp->clips);
> + return put_user(NULL, &p64->clips);
>
> - if (get_user(p, &up->clips))
> + if (get_user(p, &p32->clips))
> return -EFAULT;
> uclips = compat_ptr(p);
> if (aux_space < clipcount * sizeof(*kclips))
> return -EFAULT;
> kclips = aux_buf;
> - if (put_user(kclips, &kp->clips))
> + if (put_user(kclips, &p64->clips))
> return -EFAULT;
>
> while (clipcount--) {
> @@ -98,27 +98,27 @@ static int get_v4l2_window32(struct v4l2_window __user *kp,
> return 0;
> }
>
> -static int put_v4l2_window32(struct v4l2_window __user *kp,
> - struct v4l2_window32 __user *up)
> +static int put_v4l2_window32(struct v4l2_window __user *p64,
> + struct v4l2_window32 __user *p32)
> {
> struct v4l2_clip __user *kclips;
> struct v4l2_clip32 __user *uclips;
> compat_caddr_t p;
> u32 clipcount;
>
> - if (copy_in_user(&up->w, &kp->w, sizeof(kp->w)) ||
> - assign_in_user(&up->field, &kp->field) ||
> - assign_in_user(&up->chromakey, &kp->chromakey) ||
> - assign_in_user(&up->global_alpha, &kp->global_alpha) ||
> - get_user(clipcount, &kp->clipcount) ||
> - put_user(clipcount, &up->clipcount))
> + if (copy_in_user(&p32->w, &p64->w, sizeof(p64->w)) ||
> + assign_in_user(&p32->field, &p64->field) ||
> + assign_in_user(&p32->chromakey, &p64->chromakey) ||
> + assign_in_user(&p32->global_alpha, &p64->global_alpha) ||
> + get_user(clipcount, &p64->clipcount) ||
> + put_user(clipcount, &p32->clipcount))
> return -EFAULT;
> if (!clipcount)
> return 0;
>
> - if (get_user(kclips, &kp->clips))
> + if (get_user(kclips, &p64->clips))
> return -EFAULT;
> - if (get_user(p, &up->clips))
> + if (get_user(p, &p32->clips))
> return -EFAULT;
> uclips = compat_ptr(p);
> while (clipcount--) {
> @@ -161,11 +161,11 @@ struct v4l2_create_buffers32 {
> __u32 reserved[8];
> };
>
> -static int __bufsize_v4l2_format(struct v4l2_format32 __user *up, u32 *size)
> +static int __bufsize_v4l2_format(struct v4l2_format32 __user *p32, u32 *size)
> {
> u32 type;
>
> - if (get_user(type, &up->type))
> + if (get_user(type, &p32->type))
> return -EFAULT;
>
> switch (type) {
> @@ -173,7 +173,7 @@ static int __bufsize_v4l2_format(struct v4l2_format32 __user *up, u32 *size)
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: {
> u32 clipcount;
>
> - if (get_user(clipcount, &up->fmt.win.clipcount))
> + if (get_user(clipcount, &p32->fmt.win.clipcount))
> return -EFAULT;
> if (clipcount > 2048)
> return -EINVAL;
> @@ -186,141 +186,141 @@ static int __bufsize_v4l2_format(struct v4l2_format32 __user *up, u32 *size)
> }
> }
>
> -static int bufsize_v4l2_format(struct v4l2_format32 __user *up, u32 *size)
> +static int bufsize_v4l2_format(struct v4l2_format32 __user *p32, u32 *size)
> {
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)))
> return -EFAULT;
> - return __bufsize_v4l2_format(up, size);
> + return __bufsize_v4l2_format(p32, size);
> }
>
> -static int __get_v4l2_format32(struct v4l2_format __user *kp,
> - struct v4l2_format32 __user *up,
> +static int __get_v4l2_format32(struct v4l2_format __user *p64,
> + struct v4l2_format32 __user *p32,
> void __user *aux_buf, u32 aux_space)
> {
> u32 type;
>
> - if (get_user(type, &up->type) || put_user(type, &kp->type))
> + if (get_user(type, &p32->type) || put_user(type, &p64->type))
> return -EFAULT;
>
> switch (type) {
> case V4L2_BUF_TYPE_VIDEO_CAPTURE:
> case V4L2_BUF_TYPE_VIDEO_OUTPUT:
> - return copy_in_user(&kp->fmt.pix, &up->fmt.pix,
> - sizeof(kp->fmt.pix)) ? -EFAULT : 0;
> + return copy_in_user(&p64->fmt.pix, &p32->fmt.pix,
> + sizeof(p64->fmt.pix)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
> - return copy_in_user(&kp->fmt.pix_mp, &up->fmt.pix_mp,
> - sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
> + return copy_in_user(&p64->fmt.pix_mp, &p32->fmt.pix_mp,
> + sizeof(p64->fmt.pix_mp)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_VIDEO_OVERLAY:
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
> - return get_v4l2_window32(&kp->fmt.win, &up->fmt.win,
> + return get_v4l2_window32(&p64->fmt.win, &p32->fmt.win,
> aux_buf, aux_space);
> case V4L2_BUF_TYPE_VBI_CAPTURE:
> case V4L2_BUF_TYPE_VBI_OUTPUT:
> - return copy_in_user(&kp->fmt.vbi, &up->fmt.vbi,
> - sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
> + return copy_in_user(&p64->fmt.vbi, &p32->fmt.vbi,
> + sizeof(p64->fmt.vbi)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
> case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
> - return copy_in_user(&kp->fmt.sliced, &up->fmt.sliced,
> - sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
> + return copy_in_user(&p64->fmt.sliced, &p32->fmt.sliced,
> + sizeof(p64->fmt.sliced)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_SDR_CAPTURE:
> case V4L2_BUF_TYPE_SDR_OUTPUT:
> - return copy_in_user(&kp->fmt.sdr, &up->fmt.sdr,
> - sizeof(kp->fmt.sdr)) ? -EFAULT : 0;
> + return copy_in_user(&p64->fmt.sdr, &p32->fmt.sdr,
> + sizeof(p64->fmt.sdr)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_META_CAPTURE:
> - return copy_in_user(&kp->fmt.meta, &up->fmt.meta,
> - sizeof(kp->fmt.meta)) ? -EFAULT : 0;
> + return copy_in_user(&p64->fmt.meta, &p32->fmt.meta,
> + sizeof(p64->fmt.meta)) ? -EFAULT : 0;
> default:
> return -EINVAL;
> }
> }
>
> -static int get_v4l2_format32(struct v4l2_format __user *kp,
> - struct v4l2_format32 __user *up,
> +static int get_v4l2_format32(struct v4l2_format __user *p64,
> + struct v4l2_format32 __user *p32,
> void __user *aux_buf, u32 aux_space)
> {
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)))
> return -EFAULT;
> - return __get_v4l2_format32(kp, up, aux_buf, aux_space);
> + return __get_v4l2_format32(p64, p32, aux_buf, aux_space);
> }
>
> -static int bufsize_v4l2_create(struct v4l2_create_buffers32 __user *up,
> +static int bufsize_v4l2_create(struct v4l2_create_buffers32 __user *p32,
> u32 *size)
> {
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)))
> return -EFAULT;
> - return __bufsize_v4l2_format(&up->format, size);
> + return __bufsize_v4l2_format(&p32->format, size);
> }
>
> -static int get_v4l2_create32(struct v4l2_create_buffers __user *kp,
> - struct v4l2_create_buffers32 __user *up,
> +static int get_v4l2_create32(struct v4l2_create_buffers __user *p64,
> + struct v4l2_create_buffers32 __user *p32,
> void __user *aux_buf, u32 aux_space)
> {
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - copy_in_user(kp, up,
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + copy_in_user(p64, p32,
> offsetof(struct v4l2_create_buffers32, format)))
> return -EFAULT;
> - return __get_v4l2_format32(&kp->format, &up->format,
> + return __get_v4l2_format32(&p64->format, &p32->format,
> aux_buf, aux_space);
> }
>
> -static int __put_v4l2_format32(struct v4l2_format __user *kp,
> - struct v4l2_format32 __user *up)
> +static int __put_v4l2_format32(struct v4l2_format __user *p64,
> + struct v4l2_format32 __user *p32)
> {
> u32 type;
>
> - if (get_user(type, &kp->type))
> + if (get_user(type, &p64->type))
> return -EFAULT;
>
> switch (type) {
> case V4L2_BUF_TYPE_VIDEO_CAPTURE:
> case V4L2_BUF_TYPE_VIDEO_OUTPUT:
> - return copy_in_user(&up->fmt.pix, &kp->fmt.pix,
> - sizeof(kp->fmt.pix)) ? -EFAULT : 0;
> + return copy_in_user(&p32->fmt.pix, &p64->fmt.pix,
> + sizeof(p64->fmt.pix)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
> - return copy_in_user(&up->fmt.pix_mp, &kp->fmt.pix_mp,
> - sizeof(kp->fmt.pix_mp)) ? -EFAULT : 0;
> + return copy_in_user(&p32->fmt.pix_mp, &p64->fmt.pix_mp,
> + sizeof(p64->fmt.pix_mp)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_VIDEO_OVERLAY:
> case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
> - return put_v4l2_window32(&kp->fmt.win, &up->fmt.win);
> + return put_v4l2_window32(&p64->fmt.win, &p32->fmt.win);
> case V4L2_BUF_TYPE_VBI_CAPTURE:
> case V4L2_BUF_TYPE_VBI_OUTPUT:
> - return copy_in_user(&up->fmt.vbi, &kp->fmt.vbi,
> - sizeof(kp->fmt.vbi)) ? -EFAULT : 0;
> + return copy_in_user(&p32->fmt.vbi, &p64->fmt.vbi,
> + sizeof(p64->fmt.vbi)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
> case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
> - return copy_in_user(&up->fmt.sliced, &kp->fmt.sliced,
> - sizeof(kp->fmt.sliced)) ? -EFAULT : 0;
> + return copy_in_user(&p32->fmt.sliced, &p64->fmt.sliced,
> + sizeof(p64->fmt.sliced)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_SDR_CAPTURE:
> case V4L2_BUF_TYPE_SDR_OUTPUT:
> - return copy_in_user(&up->fmt.sdr, &kp->fmt.sdr,
> - sizeof(kp->fmt.sdr)) ? -EFAULT : 0;
> + return copy_in_user(&p32->fmt.sdr, &p64->fmt.sdr,
> + sizeof(p64->fmt.sdr)) ? -EFAULT : 0;
> case V4L2_BUF_TYPE_META_CAPTURE:
> - return copy_in_user(&up->fmt.meta, &kp->fmt.meta,
> - sizeof(kp->fmt.meta)) ? -EFAULT : 0;
> + return copy_in_user(&p32->fmt.meta, &p64->fmt.meta,
> + sizeof(p64->fmt.meta)) ? -EFAULT : 0;
> default:
> return -EINVAL;
> }
> }
>
> -static int put_v4l2_format32(struct v4l2_format __user *kp,
> - struct v4l2_format32 __user *up)
> +static int put_v4l2_format32(struct v4l2_format __user *p64,
> + struct v4l2_format32 __user *p32)
> {
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)))
> return -EFAULT;
> - return __put_v4l2_format32(kp, up);
> + return __put_v4l2_format32(p64, p32);
> }
>
> -static int put_v4l2_create32(struct v4l2_create_buffers __user *kp,
> - struct v4l2_create_buffers32 __user *up)
> +static int put_v4l2_create32(struct v4l2_create_buffers __user *p64,
> + struct v4l2_create_buffers32 __user *p32)
> {
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
> - copy_in_user(up, kp,
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)) ||
> + copy_in_user(p32, p64,
> offsetof(struct v4l2_create_buffers32, format)) ||
> - copy_in_user(up->reserved, kp->reserved, sizeof(kp->reserved)))
> + copy_in_user(p32->reserved, p64->reserved, sizeof(p64->reserved)))
> return -EFAULT;
> - return __put_v4l2_format32(&kp->format, &up->format);
> + return __put_v4l2_format32(&p64->format, &p32->format);
> }
>
> struct v4l2_standard32 {
> @@ -332,27 +332,27 @@ struct v4l2_standard32 {
> __u32 reserved[4];
> };
>
> -static int get_v4l2_standard32(struct v4l2_standard __user *kp,
> - struct v4l2_standard32 __user *up)
> +static int get_v4l2_standard32(struct v4l2_standard __user *p64,
> + struct v4l2_standard32 __user *p32)
> {
> /* other fields are not set by the user, nor used by the driver */
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - assign_in_user(&kp->index, &up->index))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + assign_in_user(&p64->index, &p32->index))
> return -EFAULT;
> return 0;
> }
>
> -static int put_v4l2_standard32(struct v4l2_standard __user *kp,
> - struct v4l2_standard32 __user *up)
> +static int put_v4l2_standard32(struct v4l2_standard __user *p64,
> + struct v4l2_standard32 __user *p32)
> {
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
> - assign_in_user(&up->index, &kp->index) ||
> - assign_in_user(&up->id, &kp->id) ||
> - copy_in_user(up->name, kp->name, sizeof(up->name)) ||
> - copy_in_user(&up->frameperiod, &kp->frameperiod,
> - sizeof(up->frameperiod)) ||
> - assign_in_user(&up->framelines, &kp->framelines) ||
> - copy_in_user(up->reserved, kp->reserved, sizeof(up->reserved)))
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)) ||
> + assign_in_user(&p32->index, &p64->index) ||
> + assign_in_user(&p32->id, &p64->id) ||
> + copy_in_user(p32->name, p64->name, sizeof(p32->name)) ||
> + copy_in_user(&p32->frameperiod, &p64->frameperiod,
> + sizeof(p32->frameperiod)) ||
> + assign_in_user(&p32->framelines, &p64->framelines) ||
> + copy_in_user(p32->reserved, p64->reserved, sizeof(p32->reserved)))
> return -EFAULT;
> return 0;
> }
> @@ -392,31 +392,31 @@ struct v4l2_buffer32 {
> __u32 reserved;
> };
>
> -static int get_v4l2_plane32(struct v4l2_plane __user *up,
> - struct v4l2_plane32 __user *up32,
> +static int get_v4l2_plane32(struct v4l2_plane __user *p64,
> + struct v4l2_plane32 __user *p32,
> enum v4l2_memory memory)
> {
> compat_ulong_t p;
>
> - if (copy_in_user(up, up32, 2 * sizeof(__u32)) ||
> - copy_in_user(&up->data_offset, &up32->data_offset,
> - sizeof(up->data_offset)))
> + if (copy_in_user(p64, p32, 2 * sizeof(__u32)) ||
> + copy_in_user(&p64->data_offset, &p32->data_offset,
> + sizeof(p64->data_offset)))
> return -EFAULT;
>
> switch (memory) {
> case V4L2_MEMORY_MMAP:
> case V4L2_MEMORY_OVERLAY:
> - if (copy_in_user(&up->m.mem_offset, &up32->m.mem_offset,
> - sizeof(up32->m.mem_offset)))
> + if (copy_in_user(&p64->m.mem_offset, &p32->m.mem_offset,
> + sizeof(p32->m.mem_offset)))
> return -EFAULT;
> break;
> case V4L2_MEMORY_USERPTR:
> - if (get_user(p, &up32->m.userptr) ||
> - put_user((unsigned long)compat_ptr(p), &up->m.userptr))
> + if (get_user(p, &p32->m.userptr) ||
> + put_user((unsigned long)compat_ptr(p), &p64->m.userptr))
> return -EFAULT;
> break;
> case V4L2_MEMORY_DMABUF:
> - if (copy_in_user(&up->m.fd, &up32->m.fd, sizeof(up32->m.fd)))
> + if (copy_in_user(&p64->m.fd, &p32->m.fd, sizeof(p32->m.fd)))
> return -EFAULT;
> break;
> }
> @@ -424,32 +424,32 @@ static int get_v4l2_plane32(struct v4l2_plane __user *up,
> return 0;
> }
>
> -static int put_v4l2_plane32(struct v4l2_plane __user *up,
> - struct v4l2_plane32 __user *up32,
> +static int put_v4l2_plane32(struct v4l2_plane __user *p64,
> + struct v4l2_plane32 __user *p32,
> enum v4l2_memory memory)
> {
> unsigned long p;
>
> - if (copy_in_user(up32, up, 2 * sizeof(__u32)) ||
> - copy_in_user(&up32->data_offset, &up->data_offset,
> - sizeof(up->data_offset)))
> + if (copy_in_user(p32, p64, 2 * sizeof(__u32)) ||
> + copy_in_user(&p32->data_offset, &p64->data_offset,
> + sizeof(p64->data_offset)))
> return -EFAULT;
>
> switch (memory) {
> case V4L2_MEMORY_MMAP:
> case V4L2_MEMORY_OVERLAY:
> - if (copy_in_user(&up32->m.mem_offset, &up->m.mem_offset,
> - sizeof(up->m.mem_offset)))
> + if (copy_in_user(&p32->m.mem_offset, &p64->m.mem_offset,
> + sizeof(p64->m.mem_offset)))
> return -EFAULT;
> break;
> case V4L2_MEMORY_USERPTR:
> - if (get_user(p, &up->m.userptr)||
> + if (get_user(p, &p64->m.userptr)||
> put_user((compat_ulong_t)ptr_to_compat((void __user *)p),
> - &up32->m.userptr))
> + &p32->m.userptr))
> return -EFAULT;
> break;
> case V4L2_MEMORY_DMABUF:
> - if (copy_in_user(&up32->m.fd, &up->m.fd, sizeof(up->m.fd)))
> + if (copy_in_user(&p32->m.fd, &p64->m.fd, sizeof(p64->m.fd)))
> return -EFAULT;
> break;
> }
> @@ -457,14 +457,14 @@ static int put_v4l2_plane32(struct v4l2_plane __user *up,
> return 0;
> }
>
> -static int bufsize_v4l2_buffer(struct v4l2_buffer32 __user *up, u32 *size)
> +static int bufsize_v4l2_buffer(struct v4l2_buffer32 __user *p32, u32 *size)
> {
> u32 type;
> u32 length;
>
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - get_user(type, &up->type) ||
> - get_user(length, &up->length))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + get_user(type, &p32->type) ||
> + get_user(length, &p32->length))
> return -EFAULT;
>
> if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
> @@ -482,8 +482,8 @@ static int bufsize_v4l2_buffer(struct v4l2_buffer32 __user *up, u32 *size)
> return 0;
> }
>
> -static int get_v4l2_buffer32(struct v4l2_buffer __user *kp,
> - struct v4l2_buffer32 __user *up,
> +static int get_v4l2_buffer32(struct v4l2_buffer __user *p64,
> + struct v4l2_buffer32 __user *p32,
> void __user *aux_buf, u32 aux_space)
> {
> u32 type;
> @@ -494,24 +494,24 @@ static int get_v4l2_buffer32(struct v4l2_buffer __user *kp,
> compat_caddr_t p;
> int ret;
>
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - assign_in_user(&kp->index, &up->index) ||
> - get_user(type, &up->type) ||
> - put_user(type, &kp->type) ||
> - assign_in_user(&kp->flags, &up->flags) ||
> - get_user(memory, &up->memory) ||
> - put_user(memory, &kp->memory) ||
> - get_user(length, &up->length) ||
> - put_user(length, &kp->length))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + assign_in_user(&p64->index, &p32->index) ||
> + get_user(type, &p32->type) ||
> + put_user(type, &p64->type) ||
> + assign_in_user(&p64->flags, &p32->flags) ||
> + get_user(memory, &p32->memory) ||
> + put_user(memory, &p64->memory) ||
> + get_user(length, &p32->length) ||
> + put_user(length, &p64->length))
> return -EFAULT;
>
> if (V4L2_TYPE_IS_OUTPUT(type))
> - if (assign_in_user(&kp->bytesused, &up->bytesused) ||
> - assign_in_user(&kp->field, &up->field) ||
> - assign_in_user(&kp->timestamp.tv_sec,
> - &up->timestamp.tv_sec) ||
> - assign_in_user(&kp->timestamp.tv_usec,
> - &up->timestamp.tv_usec))
> + if (assign_in_user(&p64->bytesused, &p32->bytesused) ||
> + assign_in_user(&p64->field, &p32->field) ||
> + assign_in_user(&p64->timestamp.tv_sec,
> + &p32->timestamp.tv_sec) ||
> + assign_in_user(&p64->timestamp.tv_usec,
> + &p32->timestamp.tv_usec))
> return -EFAULT;
>
> if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
> @@ -522,12 +522,12 @@ static int get_v4l2_buffer32(struct v4l2_buffer __user *kp,
> * num_planes == 0 is legal, e.g. when userspace doesn't
> * need planes array on DQBUF
> */
> - return put_user(NULL, &kp->m.planes);
> + return put_user(NULL, &p64->m.planes);
> }
> if (num_planes > VIDEO_MAX_PLANES)
> return -EINVAL;
>
> - if (get_user(p, &up->m.planes))
> + if (get_user(p, &p32->m.planes))
> return -EFAULT;
>
> uplane32 = compat_ptr(p);
> @@ -544,7 +544,7 @@ static int get_v4l2_buffer32(struct v4l2_buffer __user *kp,
>
> uplane = aux_buf;
> if (put_user((__force struct v4l2_plane *)uplane,
> - &kp->m.planes))
> + &p64->m.planes))
> return -EFAULT;
>
> while (num_planes--) {
> @@ -558,20 +558,20 @@ static int get_v4l2_buffer32(struct v4l2_buffer __user *kp,
> switch (memory) {
> case V4L2_MEMORY_MMAP:
> case V4L2_MEMORY_OVERLAY:
> - if (assign_in_user(&kp->m.offset, &up->m.offset))
> + if (assign_in_user(&p64->m.offset, &p32->m.offset))
> return -EFAULT;
> break;
> case V4L2_MEMORY_USERPTR: {
> compat_ulong_t userptr;
>
> - if (get_user(userptr, &up->m.userptr) ||
> + if (get_user(userptr, &p32->m.userptr) ||
> put_user((unsigned long)compat_ptr(userptr),
> - &kp->m.userptr))
> + &p64->m.userptr))
> return -EFAULT;
> break;
> }
> case V4L2_MEMORY_DMABUF:
> - if (assign_in_user(&kp->m.fd, &up->m.fd))
> + if (assign_in_user(&p64->m.fd, &p32->m.fd))
> return -EFAULT;
> break;
> }
> @@ -580,8 +580,8 @@ static int get_v4l2_buffer32(struct v4l2_buffer __user *kp,
> return 0;
> }
>
> -static int put_v4l2_buffer32(struct v4l2_buffer __user *kp,
> - struct v4l2_buffer32 __user *up)
> +static int put_v4l2_buffer32(struct v4l2_buffer __user *p64,
> + struct v4l2_buffer32 __user *p32)
> {
> u32 type;
> u32 length;
> @@ -591,25 +591,25 @@ static int put_v4l2_buffer32(struct v4l2_buffer __user *kp,
> compat_caddr_t p;
> int ret;
>
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
> - assign_in_user(&up->index, &kp->index) ||
> - get_user(type, &kp->type) ||
> - put_user(type, &up->type) ||
> - assign_in_user(&up->flags, &kp->flags) ||
> - get_user(memory, &kp->memory) ||
> - put_user(memory, &up->memory))
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)) ||
> + assign_in_user(&p32->index, &p64->index) ||
> + get_user(type, &p64->type) ||
> + put_user(type, &p32->type) ||
> + assign_in_user(&p32->flags, &p64->flags) ||
> + get_user(memory, &p64->memory) ||
> + put_user(memory, &p32->memory))
> return -EFAULT;
>
> - if (assign_in_user(&up->bytesused, &kp->bytesused) ||
> - assign_in_user(&up->field, &kp->field) ||
> - assign_in_user(&up->timestamp.tv_sec, &kp->timestamp.tv_sec) ||
> - assign_in_user(&up->timestamp.tv_usec, &kp->timestamp.tv_usec) ||
> - copy_in_user(&up->timecode, &kp->timecode, sizeof(kp->timecode)) ||
> - assign_in_user(&up->sequence, &kp->sequence) ||
> - assign_in_user(&up->reserved2, &kp->reserved2) ||
> - assign_in_user(&up->reserved, &kp->reserved) ||
> - get_user(length, &kp->length) ||
> - put_user(length, &up->length))
> + if (assign_in_user(&p32->bytesused, &p64->bytesused) ||
> + assign_in_user(&p32->field, &p64->field) ||
> + assign_in_user(&p32->timestamp.tv_sec, &p64->timestamp.tv_sec) ||
> + assign_in_user(&p32->timestamp.tv_usec, &p64->timestamp.tv_usec) ||
> + copy_in_user(&p32->timecode, &p64->timecode, sizeof(p64->timecode)) ||
> + assign_in_user(&p32->sequence, &p64->sequence) ||
> + assign_in_user(&p32->reserved2, &p64->reserved2) ||
> + assign_in_user(&p32->reserved, &p64->reserved) ||
> + get_user(length, &p64->length) ||
> + put_user(length, &p32->length))
> return -EFAULT;
>
> if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
> @@ -625,9 +625,9 @@ static int put_v4l2_buffer32(struct v4l2_buffer __user *kp,
> * smatch warnings, so instead declare it without __user
> * and cast it as a userspace pointer to put_v4l2_plane32().
> */
> - if (get_user(uplane, &kp->m.planes))
> + if (get_user(uplane, &p64->m.planes))
> return -EFAULT;
> - if (get_user(p, &up->m.planes))
> + if (get_user(p, &p32->m.planes))
> return -EFAULT;
> uplane32 = compat_ptr(p);
>
> @@ -642,15 +642,15 @@ static int put_v4l2_buffer32(struct v4l2_buffer __user *kp,
> switch (memory) {
> case V4L2_MEMORY_MMAP:
> case V4L2_MEMORY_OVERLAY:
> - if (assign_in_user(&up->m.offset, &kp->m.offset))
> + if (assign_in_user(&p32->m.offset, &p64->m.offset))
> return -EFAULT;
> break;
> case V4L2_MEMORY_USERPTR:
> - if (assign_in_user(&up->m.userptr, &kp->m.userptr))
> + if (assign_in_user(&p32->m.userptr, &p64->m.userptr))
> return -EFAULT;
> break;
> case V4L2_MEMORY_DMABUF:
> - if (assign_in_user(&up->m.fd, &kp->m.fd))
> + if (assign_in_user(&p32->m.fd, &p64->m.fd))
> return -EFAULT;
> break;
> }
> @@ -675,32 +675,32 @@ struct v4l2_framebuffer32 {
> } fmt;
> };
>
> -static int get_v4l2_framebuffer32(struct v4l2_framebuffer __user *kp,
> - struct v4l2_framebuffer32 __user *up)
> +static int get_v4l2_framebuffer32(struct v4l2_framebuffer __user *p64,
> + struct v4l2_framebuffer32 __user *p32)
> {
> compat_caddr_t tmp;
>
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - get_user(tmp, &up->base) ||
> - put_user((void __force *)compat_ptr(tmp), &kp->base) ||
> - assign_in_user(&kp->capability, &up->capability) ||
> - assign_in_user(&kp->flags, &up->flags) ||
> - copy_in_user(&kp->fmt, &up->fmt, sizeof(kp->fmt)))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + get_user(tmp, &p32->base) ||
> + put_user((void __force *)compat_ptr(tmp), &p64->base) ||
> + assign_in_user(&p64->capability, &p32->capability) ||
> + assign_in_user(&p64->flags, &p32->flags) ||
> + copy_in_user(&p64->fmt, &p32->fmt, sizeof(p64->fmt)))
> return -EFAULT;
> return 0;
> }
>
> -static int put_v4l2_framebuffer32(struct v4l2_framebuffer __user *kp,
> - struct v4l2_framebuffer32 __user *up)
> +static int put_v4l2_framebuffer32(struct v4l2_framebuffer __user *p64,
> + struct v4l2_framebuffer32 __user *p32)
> {
> void *base;
>
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
> - get_user(base, &kp->base) ||
> - put_user(ptr_to_compat((void __user *)base), &up->base) ||
> - assign_in_user(&up->capability, &kp->capability) ||
> - assign_in_user(&up->flags, &kp->flags) ||
> - copy_in_user(&up->fmt, &kp->fmt, sizeof(kp->fmt)))
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)) ||
> + get_user(base, &p64->base) ||
> + put_user(ptr_to_compat((void __user *)base), &p32->base) ||
> + assign_in_user(&p32->capability, &p64->capability) ||
> + assign_in_user(&p32->flags, &p64->flags) ||
> + copy_in_user(&p32->fmt, &p64->fmt, sizeof(p64->fmt)))
> return -EFAULT;
> return 0;
> }
> @@ -721,18 +721,18 @@ struct v4l2_input32 {
> * The 64-bit v4l2_input struct has extra padding at the end of the struct.
> * Otherwise it is identical to the 32-bit version.
> */
> -static inline int get_v4l2_input32(struct v4l2_input __user *kp,
> - struct v4l2_input32 __user *up)
> +static inline int get_v4l2_input32(struct v4l2_input __user *p64,
> + struct v4l2_input32 __user *p32)
> {
> - if (copy_in_user(kp, up, sizeof(*up)))
> + if (copy_in_user(p64, p32, sizeof(*p32)))
> return -EFAULT;
> return 0;
> }
>
> -static inline int put_v4l2_input32(struct v4l2_input __user *kp,
> - struct v4l2_input32 __user *up)
> +static inline int put_v4l2_input32(struct v4l2_input __user *p64,
> + struct v4l2_input32 __user *p32)
> {
> - if (copy_in_user(up, kp, sizeof(*up)))
> + if (copy_in_user(p32, p64, sizeof(*p32)))
> return -EFAULT;
> return 0;
> }
> @@ -786,13 +786,13 @@ static inline bool ctrl_is_pointer(struct file *file, u32 id)
> (qec.flags & V4L2_CTRL_FLAG_HAS_PAYLOAD);
> }
>
> -static int bufsize_v4l2_ext_controls(struct v4l2_ext_controls32 __user *up,
> +static int bufsize_v4l2_ext_controls(struct v4l2_ext_controls32 __user *p32,
> u32 *size)
> {
> u32 count;
>
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - get_user(count, &up->count))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + get_user(count, &p32->count))
> return -EFAULT;
> if (count > V4L2_CID_MAX_CTRLS)
> return -EINVAL;
> @@ -801,8 +801,8 @@ static int bufsize_v4l2_ext_controls(struct v4l2_ext_controls32 __user *up,
> }
>
> static int get_v4l2_ext_controls32(struct file *file,
> - struct v4l2_ext_controls __user *kp,
> - struct v4l2_ext_controls32 __user *up,
> + struct v4l2_ext_controls __user *p64,
> + struct v4l2_ext_controls32 __user *p32,
> void __user *aux_buf, u32 aux_space)
> {
> struct v4l2_ext_control32 __user *ucontrols;
> @@ -811,19 +811,19 @@ static int get_v4l2_ext_controls32(struct file *file,
> u32 n;
> compat_caddr_t p;
>
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - assign_in_user(&kp->which, &up->which) ||
> - get_user(count, &up->count) ||
> - put_user(count, &kp->count) ||
> - assign_in_user(&kp->error_idx, &up->error_idx) ||
> - copy_in_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + assign_in_user(&p64->which, &p32->which) ||
> + get_user(count, &p32->count) ||
> + put_user(count, &p64->count) ||
> + assign_in_user(&p64->error_idx, &p32->error_idx) ||
> + copy_in_user(p64->reserved, p32->reserved, sizeof(p64->reserved)))
> return -EFAULT;
>
> if (count == 0)
> - return put_user(NULL, &kp->controls);
> + return put_user(NULL, &p64->controls);
> if (count > V4L2_CID_MAX_CTRLS)
> return -EINVAL;
> - if (get_user(p, &up->controls))
> + if (get_user(p, &p32->controls))
> return -EFAULT;
> ucontrols = compat_ptr(p);
> if (!access_ok(VERIFY_READ, ucontrols, count * sizeof(*ucontrols)))
> @@ -832,7 +832,7 @@ static int get_v4l2_ext_controls32(struct file *file,
> return -EFAULT;
> kcontrols = aux_buf;
> if (put_user((__force struct v4l2_ext_control *)kcontrols,
> - &kp->controls))
> + &p64->controls))
> return -EFAULT;
>
> for (n = 0; n < count; n++) {
> @@ -860,8 +860,8 @@ static int get_v4l2_ext_controls32(struct file *file,
> }
>
> static int put_v4l2_ext_controls32(struct file *file,
> - struct v4l2_ext_controls __user *kp,
> - struct v4l2_ext_controls32 __user *up)
> + struct v4l2_ext_controls __user *p64,
> + struct v4l2_ext_controls32 __user *p32)
> {
> struct v4l2_ext_control32 __user *ucontrols;
> struct v4l2_ext_control *kcontrols;
> @@ -877,18 +877,18 @@ static int put_v4l2_ext_controls32(struct file *file,
> * with __user causes smatch warnings, so instead declare it
> * without __user and cast it as a userspace pointer where needed.
> */
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
> - assign_in_user(&up->which, &kp->which) ||
> - get_user(count, &kp->count) ||
> - put_user(count, &up->count) ||
> - assign_in_user(&up->error_idx, &kp->error_idx) ||
> - copy_in_user(up->reserved, kp->reserved, sizeof(up->reserved)) ||
> - get_user(kcontrols, &kp->controls))
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)) ||
> + assign_in_user(&p32->which, &p64->which) ||
> + get_user(count, &p64->count) ||
> + put_user(count, &p32->count) ||
> + assign_in_user(&p32->error_idx, &p64->error_idx) ||
> + copy_in_user(p32->reserved, p64->reserved, sizeof(p32->reserved)) ||
> + get_user(kcontrols, &p64->controls))
> return -EFAULT;
>
> if (!count || count > (U32_MAX/sizeof(*ucontrols)))
> return 0;
> - if (get_user(p, &up->controls))
> + if (get_user(p, &p32->controls))
> return -EFAULT;
> ucontrols = compat_ptr(p);
> if (!access_ok(VERIFY_WRITE, ucontrols, count * sizeof(*ucontrols)))
> @@ -938,18 +938,18 @@ struct v4l2_event32 {
> __u32 reserved[8];
> };
>
> -static int put_v4l2_event32(struct v4l2_event __user *kp,
> - struct v4l2_event32 __user *up)
> +static int put_v4l2_event32(struct v4l2_event __user *p64,
> + struct v4l2_event32 __user *p32)
> {
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
> - assign_in_user(&up->type, &kp->type) ||
> - copy_in_user(&up->u, &kp->u, sizeof(kp->u)) ||
> - assign_in_user(&up->pending, &kp->pending) ||
> - assign_in_user(&up->sequence, &kp->sequence) ||
> - assign_in_user(&up->timestamp.tv_sec, &kp->timestamp.tv_sec) ||
> - assign_in_user(&up->timestamp.tv_nsec, &kp->timestamp.tv_nsec) ||
> - assign_in_user(&up->id, &kp->id) ||
> - copy_in_user(up->reserved, kp->reserved, sizeof(up->reserved)))
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)) ||
> + assign_in_user(&p32->type, &p64->type) ||
> + copy_in_user(&p32->u, &p64->u, sizeof(p64->u)) ||
> + assign_in_user(&p32->pending, &p64->pending) ||
> + assign_in_user(&p32->sequence, &p64->sequence) ||
> + assign_in_user(&p32->timestamp.tv_sec, &p64->timestamp.tv_sec) ||
> + assign_in_user(&p32->timestamp.tv_nsec, &p64->timestamp.tv_nsec) ||
> + assign_in_user(&p32->id, &p64->id) ||
> + copy_in_user(p32->reserved, p64->reserved, sizeof(p32->reserved)))
> return -EFAULT;
> return 0;
> }
> @@ -962,35 +962,35 @@ struct v4l2_edid32 {
> compat_caddr_t edid;
> };
>
> -static int get_v4l2_edid32(struct v4l2_edid __user *kp,
> - struct v4l2_edid32 __user *up)
> +static int get_v4l2_edid32(struct v4l2_edid __user *p64,
> + struct v4l2_edid32 __user *p32)
> {
> compat_uptr_t tmp;
>
> - if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
> - assign_in_user(&kp->pad, &up->pad) ||
> - assign_in_user(&kp->start_block, &up->start_block) ||
> - assign_in_user(&kp->blocks,
> - (unsigned char __user *)&up->blocks) ||
> - get_user(tmp, &up->edid) ||
> - put_user((void __force *)compat_ptr(tmp), &kp->edid) ||
> - copy_in_user(kp->reserved, up->reserved, sizeof(kp->reserved)))
> + if (!access_ok(VERIFY_READ, p32, sizeof(*p32)) ||
> + assign_in_user(&p64->pad, &p32->pad) ||
> + assign_in_user(&p64->start_block, &p32->start_block) ||
> + assign_in_user(&p64->blocks,
> + (unsigned char __user *)&p32->blocks) ||
> + get_user(tmp, &p32->edid) ||
> + put_user((void __force *)compat_ptr(tmp), &p64->edid) ||
> + copy_in_user(p64->reserved, p32->reserved, sizeof(p64->reserved)))
> return -EFAULT;
> return 0;
> }
>
> -static int put_v4l2_edid32(struct v4l2_edid __user *kp,
> - struct v4l2_edid32 __user *up)
> +static int put_v4l2_edid32(struct v4l2_edid __user *p64,
> + struct v4l2_edid32 __user *p32)
> {
> void *edid;
>
> - if (!access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
> - assign_in_user(&up->pad, &kp->pad) ||
> - assign_in_user(&up->start_block, &kp->start_block) ||
> - assign_in_user(&up->blocks, &kp->blocks) ||
> - get_user(edid, &kp->edid) ||
> - put_user(ptr_to_compat((void __user *)edid), &up->edid) ||
> - copy_in_user(up->reserved, kp->reserved, sizeof(up->reserved)))
> + if (!access_ok(VERIFY_WRITE, p32, sizeof(*p32)) ||
> + assign_in_user(&p32->pad, &p64->pad) ||
> + assign_in_user(&p32->start_block, &p64->start_block) ||
> + assign_in_user(&p32->blocks, &p64->blocks) ||
> + get_user(edid, &p64->edid) ||
> + put_user(ptr_to_compat((void __user *)edid), &p32->edid) ||
> + copy_in_user(p32->reserved, p64->reserved, sizeof(p32->reserved)))
> return -EFAULT;
> return 0;
> }
> @@ -1024,20 +1024,20 @@ static int put_v4l2_edid32(struct v4l2_edid __user *kp,
> #define VIDIOC_S_OUTPUT32 _IOWR('V', 47, s32)
>
> static int alloc_userspace(unsigned int size, u32 aux_space,
> - void __user **up_native)
> + void __user **new_p64)
> {
> - *up_native = compat_alloc_user_space(size + aux_space);
> - if (!*up_native)
> + *new_p64 = compat_alloc_user_space(size + aux_space);
> + if (!*new_p64)
> return -ENOMEM;
> - if (clear_user(*up_native, size))
> + if (clear_user(*new_p64, size))
> return -EFAULT;
> return 0;
> }
>
> static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
> {
> - void __user *up = compat_ptr(arg);
> - void __user *up_native = NULL;
> + void __user *p32 = compat_ptr(arg);
> + void __user *new_p64 = NULL;
> void __user *aux_buf;
> u32 aux_space;
> int compatible_arg = 1;
> @@ -1078,50 +1078,50 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
> case VIDIOC_STREAMOFF:
> case VIDIOC_S_INPUT:
> case VIDIOC_S_OUTPUT:
> - err = alloc_userspace(sizeof(unsigned int), 0, &up_native);
> - if (!err && assign_in_user((unsigned int __user *)up_native,
> - (compat_uint_t __user *)up))
> + err = alloc_userspace(sizeof(unsigned int), 0, &new_p64);
> + if (!err && assign_in_user((unsigned int __user *)new_p64,
> + (compat_uint_t __user *)p32))
> err = -EFAULT;
> compatible_arg = 0;
> break;
>
> case VIDIOC_G_INPUT:
> case VIDIOC_G_OUTPUT:
> - err = alloc_userspace(sizeof(unsigned int), 0, &up_native);
> + err = alloc_userspace(sizeof(unsigned int), 0, &new_p64);
> compatible_arg = 0;
> break;
>
> case VIDIOC_G_EDID:
> case VIDIOC_S_EDID:
> - err = alloc_userspace(sizeof(struct v4l2_edid), 0, &up_native);
> + err = alloc_userspace(sizeof(struct v4l2_edid), 0, &new_p64);
> if (!err)
> - err = get_v4l2_edid32(up_native, up);
> + err = get_v4l2_edid32(new_p64, p32);
> compatible_arg = 0;
> break;
>
> case VIDIOC_G_FMT:
> case VIDIOC_S_FMT:
> case VIDIOC_TRY_FMT:
> - err = bufsize_v4l2_format(up, &aux_space);
> + err = bufsize_v4l2_format(p32, &aux_space);
> if (!err)
> err = alloc_userspace(sizeof(struct v4l2_format),
> - aux_space, &up_native);
> + aux_space, &new_p64);
> if (!err) {
> - aux_buf = up_native + sizeof(struct v4l2_format);
> - err = get_v4l2_format32(up_native, up,
> + aux_buf = new_p64 + sizeof(struct v4l2_format);
> + err = get_v4l2_format32(new_p64, p32,
> aux_buf, aux_space);
> }
> compatible_arg = 0;
> break;
>
> case VIDIOC_CREATE_BUFS:
> - err = bufsize_v4l2_create(up, &aux_space);
> + err = bufsize_v4l2_create(p32, &aux_space);
> if (!err)
> err = alloc_userspace(sizeof(struct v4l2_create_buffers),
> - aux_space, &up_native);
> + aux_space, &new_p64);
> if (!err) {
> - aux_buf = up_native + sizeof(struct v4l2_create_buffers);
> - err = get_v4l2_create32(up_native, up,
> + aux_buf = new_p64 + sizeof(struct v4l2_create_buffers);
> + err = get_v4l2_create32(new_p64, p32,
> aux_buf, aux_space);
> }
> compatible_arg = 0;
> @@ -1131,13 +1131,13 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
> case VIDIOC_QUERYBUF:
> case VIDIOC_QBUF:
> case VIDIOC_DQBUF:
> - err = bufsize_v4l2_buffer(up, &aux_space);
> + err = bufsize_v4l2_buffer(p32, &aux_space);
> if (!err)
> err = alloc_userspace(sizeof(struct v4l2_buffer),
> - aux_space, &up_native);
> + aux_space, &new_p64);
> if (!err) {
> - aux_buf = up_native + sizeof(struct v4l2_buffer);
> - err = get_v4l2_buffer32(up_native, up,
> + aux_buf = new_p64 + sizeof(struct v4l2_buffer);
> + err = get_v4l2_buffer32(new_p64, p32,
> aux_buf, aux_space);
> }
> compatible_arg = 0;
> @@ -1145,49 +1145,49 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
>
> case VIDIOC_S_FBUF:
> err = alloc_userspace(sizeof(struct v4l2_framebuffer), 0,
> - &up_native);
> + &new_p64);
> if (!err)
> - err = get_v4l2_framebuffer32(up_native, up);
> + err = get_v4l2_framebuffer32(new_p64, p32);
> compatible_arg = 0;
> break;
>
> case VIDIOC_G_FBUF:
> err = alloc_userspace(sizeof(struct v4l2_framebuffer), 0,
> - &up_native);
> + &new_p64);
> compatible_arg = 0;
> break;
>
> case VIDIOC_ENUMSTD:
> err = alloc_userspace(sizeof(struct v4l2_standard), 0,
> - &up_native);
> + &new_p64);
> if (!err)
> - err = get_v4l2_standard32(up_native, up);
> + err = get_v4l2_standard32(new_p64, p32);
> compatible_arg = 0;
> break;
>
> case VIDIOC_ENUMINPUT:
> - err = alloc_userspace(sizeof(struct v4l2_input), 0, &up_native);
> + err = alloc_userspace(sizeof(struct v4l2_input), 0, &new_p64);
> if (!err)
> - err = get_v4l2_input32(up_native, up);
> + err = get_v4l2_input32(new_p64, p32);
> compatible_arg = 0;
> break;
>
> case VIDIOC_G_EXT_CTRLS:
> case VIDIOC_S_EXT_CTRLS:
> case VIDIOC_TRY_EXT_CTRLS:
> - err = bufsize_v4l2_ext_controls(up, &aux_space);
> + err = bufsize_v4l2_ext_controls(p32, &aux_space);
> if (!err)
> err = alloc_userspace(sizeof(struct v4l2_ext_controls),
> - aux_space, &up_native);
> + aux_space, &new_p64);
> if (!err) {
> - aux_buf = up_native + sizeof(struct v4l2_ext_controls);
> - err = get_v4l2_ext_controls32(file, up_native, up,
> + aux_buf = new_p64 + sizeof(struct v4l2_ext_controls);
> + err = get_v4l2_ext_controls32(file, new_p64, p32,
> aux_buf, aux_space);
> }
> compatible_arg = 0;
> break;
> case VIDIOC_DQEVENT:
> - err = alloc_userspace(sizeof(struct v4l2_event), 0, &up_native);
> + err = alloc_userspace(sizeof(struct v4l2_event), 0, &new_p64);
> compatible_arg = 0;
> break;
> }
> @@ -1195,9 +1195,9 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
> return err;
>
> if (compatible_arg)
> - err = native_ioctl(file, cmd, (unsigned long)up);
> + err = native_ioctl(file, cmd, (unsigned long)p32);
> else
> - err = native_ioctl(file, cmd, (unsigned long)up_native);
> + err = native_ioctl(file, cmd, (unsigned long)new_p64);
>
> if (err == -ENOTTY)
> return err;
> @@ -1211,11 +1211,11 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
> case VIDIOC_G_EXT_CTRLS:
> case VIDIOC_S_EXT_CTRLS:
> case VIDIOC_TRY_EXT_CTRLS:
> - if (put_v4l2_ext_controls32(file, up_native, up))
> + if (put_v4l2_ext_controls32(file, new_p64, p32))
> err = -EFAULT;
> break;
> case VIDIOC_S_EDID:
> - if (put_v4l2_edid32(up_native, up))
> + if (put_v4l2_edid32(new_p64, p32))
> err = -EFAULT;
> break;
> }
> @@ -1227,46 +1227,46 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
> case VIDIOC_S_OUTPUT:
> case VIDIOC_G_INPUT:
> case VIDIOC_G_OUTPUT:
> - if (assign_in_user((compat_uint_t __user *)up,
> - ((unsigned int __user *)up_native)))
> + if (assign_in_user((compat_uint_t __user *)p32,
> + ((unsigned int __user *)new_p64)))
> err = -EFAULT;
> break;
>
> case VIDIOC_G_FBUF:
> - err = put_v4l2_framebuffer32(up_native, up);
> + err = put_v4l2_framebuffer32(new_p64, p32);
> break;
>
> case VIDIOC_DQEVENT:
> - err = put_v4l2_event32(up_native, up);
> + err = put_v4l2_event32(new_p64, p32);
> break;
>
> case VIDIOC_G_EDID:
> - err = put_v4l2_edid32(up_native, up);
> + err = put_v4l2_edid32(new_p64, p32);
> break;
>
> case VIDIOC_G_FMT:
> case VIDIOC_S_FMT:
> case VIDIOC_TRY_FMT:
> - err = put_v4l2_format32(up_native, up);
> + err = put_v4l2_format32(new_p64, p32);
> break;
>
> case VIDIOC_CREATE_BUFS:
> - err = put_v4l2_create32(up_native, up);
> + err = put_v4l2_create32(new_p64, p32);
> break;
>
> case VIDIOC_PREPARE_BUF:
> case VIDIOC_QUERYBUF:
> case VIDIOC_QBUF:
> case VIDIOC_DQBUF:
> - err = put_v4l2_buffer32(up_native, up);
> + err = put_v4l2_buffer32(new_p64, p32);
> break;
>
> case VIDIOC_ENUMSTD:
> - err = put_v4l2_standard32(up_native, up);
> + err = put_v4l2_standard32(new_p64, p32);
> break;
>
> case VIDIOC_ENUMINPUT:
> - err = put_v4l2_input32(up_native, up);
> + err = put_v4l2_input32(new_p64, p32);
> break;
> }
> return err;
>
next prev parent reply other threads:[~2018-04-17 10:37 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 10:20 [PATCH 0/5] Remaining COMPILE_TEST and smatch cleanups Mauro Carvalho Chehab
2018-04-17 10:20 ` [PATCH 1/5] omap: omap-iommu.h: allow building drivers with COMPILE_TEST Mauro Carvalho Chehab
2018-04-17 10:20 ` [PATCH 2/5] media: omap3isp: Enable driver compilation on ARM " Mauro Carvalho Chehab
2018-04-17 10:20 ` [PATCH 3/5] media: omap3isp: allow it to build " Mauro Carvalho Chehab
2018-04-17 10:20 ` [PATCH 4/5] media: v4l2-compat-ioctl32: fix several __user annotations Mauro Carvalho Chehab
2018-04-17 10:33 ` Hans Verkuil
2018-04-17 10:53 ` Mauro Carvalho Chehab
2018-04-17 11:04 ` Hans Verkuil
2018-04-17 11:30 ` Mauro Carvalho Chehab
2018-04-17 13:01 ` Mauro Carvalho Chehab
2018-04-17 13:10 ` Mauro Carvalho Chehab
2018-04-17 13:58 ` Mauro Carvalho Chehab
2018-04-17 14:21 ` Mauro Carvalho Chehab
2018-04-17 13:11 ` Hans Verkuil
2018-04-17 13:35 ` Mauro Carvalho Chehab
2018-04-17 10:20 ` [PATCH 5/5] media: v4l2-compat-ioctl32: better name userspace pointers Mauro Carvalho Chehab
2018-04-17 10:37 ` Hans Verkuil [this message]
2018-04-17 10:22 ` [PATCH 0/5] Remaining COMPILE_TEST and smatch cleanups Mauro Carvalho Chehab
[not found] ` <20180418090414.6h5q3zfm3udzscd7@valkosipuli.retiisi.org.uk>
2018-04-19 10:42 ` Mauro Carvalho Chehab
2018-04-23 14:09 ` Sakari Ailus
2018-04-23 14:37 ` Mauro Carvalho Chehab
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