On Mon, Feb 21, 2011 at 02:09:07PM +0200, David Cohen wrote: > On Mon, Feb 21, 2011 at 9:36 AM, Felipe Balbi <balbi@xxxxxx> wrote: > > Hi, > > > > On Sat, Feb 19, 2011 at 06:04:58PM +0200, David Cohen wrote: > >> > I have to disagree. The fundamental problem is the circular dependency > >> > between those two files: > >> > > >> > sched.h uses wait_queue_head_t defined in wait.h > >> > wait.h uses TASK_* defined in sched.h > >> > > >> > So, IMO the real fix would be clear out the circular dependency. Maybe > >> > introducing <linux/task.h> to define those TASK_* symbols and include > >> > that on sched.h and wait.h > >> > > >> > Just dig a quick and dirty to try it out and works like a charm > >> > >> We have 2 problems: > >> - omap24xxcam compilation broken > >> - circular dependency between sched.h and wait.h > >> > >> To fix the broken compilation we can do what the rest of the kernel is > >> doing, which is to include sched.h. > >> Then, the circular dependency is fixed by some different approach > >> which would probably change *all* current usage of TASK_*. > > > > considering that 1 is caused by 2 I would fix 2. > > > >> IMO, there's no need to create a dependency between those issues. > > > > There's no dependency between them, it's just that the root cause for > > this problem is a circular dependency between wait.h and sched.h > > I did a try to fix this circular dependency and the comment I got was > to include sched.h in omap24xxcam.c file: > http://marc.info/?l=linux-omap&m=129828637120270&w=2 > > I'm working to remove v4l2 internal device interface from omap24xxcam > and then I need this driver's compilation fixed. > The whole kernel is including sched.h when wake_up*() macro is used, > so this should be our first solution IMO. > As I said earlier, no need to make this compilation fix be dependent > of wait.h fix (if it's really going to be changed). > > I think we should proceed with this patch. I would wait to hear from Ingo or Peter who are the maintainers for that part, but fine by me. -- balbi -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
