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Subject: media: subdev: remove VIDIOC_DQEVENT_TIME32 handling Author: Arnd Bergmann <[email protected]> Date: Mon Jun 14 12:34:05 2021 +0200 Converting the VIDIOC_DQEVENT_TIME32/VIDIOC_DQEVENT32/ VIDIOC_DQEVENT32_TIME32 arguments to the canonical form is done in common code, but for some reason I ended up adding another conversion helper to subdev_do_ioctl() as well. I must have concluded that this does not go through the common conversion, but it has done that since the ioctl handler was first added. I assume this one is harmless as there should be no way to arrive here from user space if CONFIG_COMPAT_32BIT_TIME is set, but since it is dead code, it should just get removed. On a 64-bit architecture, as well as a 32-bit architecture without CONFIG_COMPAT_32BIT_TIME, handling this command is a mistake, and the kernel should return an error. Fixes: 1a6c0b36dd19 ("media: v4l2-core: fix VIDIOC_DQEVENT for time64 ABI") Signed-off-by: Arnd Bergmann <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/v4l2-core/v4l2-subdev.c | 24 ------------------------ 1 file changed, 24 deletions(-) --- diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index 6d3e03036519..5d27a27cc2f2 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -430,30 +430,6 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) return v4l2_event_dequeue(vfh, arg, file->f_flags & O_NONBLOCK); - case VIDIOC_DQEVENT_TIME32: { - struct v4l2_event_time32 *ev32 = arg; - struct v4l2_event ev = { }; - - if (!(sd->flags & V4L2_SUBDEV_FL_HAS_EVENTS)) - return -ENOIOCTLCMD; - - rval = v4l2_event_dequeue(vfh, &ev, file->f_flags & O_NONBLOCK); - - *ev32 = (struct v4l2_event_time32) { - .type = ev.type, - .pending = ev.pending, - .sequence = ev.sequence, - .timestamp.tv_sec = ev.timestamp.tv_sec, - .timestamp.tv_nsec = ev.timestamp.tv_nsec, - .id = ev.id, - }; - - memcpy(&ev32->u, &ev.u, sizeof(ev.u)); - memcpy(&ev32->reserved, &ev.reserved, sizeof(ev.reserved)); - - return rval; - } - case VIDIOC_SUBSCRIBE_EVENT: return v4l2_subdev_call(sd, core, subscribe_event, vfh, arg); _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
