Re: [Xen-devel] [PATCH 1/5] move qemu_irq typedef out of cpu-common.h

[Igor Mammedov <imammedo@xxxxxxxxxx>]

On Mon, 20 Aug 2012 06:41:04 +0200
Stefan Weil <sw@xxxxxxxxxxx> wrote:

> Am 20.08.2012 01:39, schrieb Igor Mammedov:
> > it's necessary for making CPU child of DEVICE without
> > causing circular header deps.
> >
> > Signed-off-by: Igor Mammedov <imammedo@xxxxxxxxxx>
> > ---
> >   hw/arm-misc.h |    1 +
> >   hw/bt.h       |    2 ++
> >   hw/devices.h  |    2 ++
> >   hw/irq.h      |    2 ++
> >   hw/omap.h     |    1 +
> >   hw/soc_dma.h  |    1 +
> >   hw/xen.h      |    1 +
> >   qemu-common.h |    1 -
> >   sysemu.h      |    1 +
> >   9 files changed, 11 insertions(+), 1 deletions(-)
> >
> > diff --git a/hw/arm-misc.h b/hw/arm-misc.h
> > index bdd8fec..b13aa59 100644
> > --- a/hw/arm-misc.h
> > +++ b/hw/arm-misc.h
> > @@ -12,6 +12,7 @@
> >   #define ARM_MISC_H 1
> >   
> >   #include "memory.h"
> > +#include "hw/irq.h"
> >   
> >   /* The CPU is also modeled as an interrupt controller.  */
> >   #define ARM_PIC_CPU_IRQ 0
> > diff --git a/hw/bt.h b/hw/bt.h
> > index a48b8d4..ebf6a37 100644
> > --- a/hw/bt.h
> > +++ b/hw/bt.h
> > @@ -23,6 +23,8 @@
> >    * along with this program; if not, see <http://www.gnu.org/licenses/>.
> >    */
> >   
> > +#include "hw/irq.h"
> > +
> >   /* BD Address */
> >   typedef struct {
> >       uint8_t b[6];
> > diff --git a/hw/devices.h b/hw/devices.h
> > index 1a55c1e..c60bcab 100644
> > --- a/hw/devices.h
> > +++ b/hw/devices.h
> > @@ -1,6 +1,8 @@
> >   #ifndef QEMU_DEVICES_H
> >   #define QEMU_DEVICES_H
> >   
> > +#include "hw/irq.h"
> > +
> >   /* ??? Not all users of this file can include cpu-common.h.  */
> >   struct MemoryRegion;
> >   
> > diff --git a/hw/irq.h b/hw/irq.h
> > index 56c55f0..1339a3a 100644
> > --- a/hw/irq.h
> > +++ b/hw/irq.h
> > @@ -3,6 +3,8 @@
> >   
> >   /* Generic IRQ/GPIO pin infrastructure.  */
> >   
> > +typedef struct IRQState *qemu_irq;
> > +
> >   typedef void (*qemu_irq_handler)(void *opaque, int n, int level);
> >   
> >   void qemu_set_irq(qemu_irq irq, int level);
> > diff --git a/hw/omap.h b/hw/omap.h
> > index 413851b..8b08462 100644
> > --- a/hw/omap.h
> > +++ b/hw/omap.h
> > @@ -19,6 +19,7 @@
> >   #ifndef hw_omap_h
> >   #include "memory.h"
> >   # define hw_omap_h                "omap.h"
> > +#include "hw/irq.h"
> >   
> >   # define OMAP_EMIFS_BASE  0x00000000
> >   # define OMAP2_Q0_BASE            0x00000000
> > diff --git a/hw/soc_dma.h b/hw/soc_dma.h
> > index 904b26c..e386ace 100644
> > --- a/hw/soc_dma.h
> > +++ b/hw/soc_dma.h
> > @@ -19,6 +19,7 @@
> >    */
> >   
> >   #include "memory.h"
> > +#include "hw/irq.h"
> >   
> >   struct soc_dma_s;
> >   struct soc_dma_ch_s;
> > diff --git a/hw/xen.h b/hw/xen.h
> > index e5926b7..ff11dfd 100644
> > --- a/hw/xen.h
> > +++ b/hw/xen.h
> > @@ -8,6 +8,7 @@
> >    */
> >   #include <inttypes.h>
> >   
> > +#include "hw/irq.h"
> >   #include "qemu-common.h"
> >   
> >   /* xen-machine.c */
> > diff --git a/qemu-common.h b/qemu-common.h
> > index e5c2bcd..6677a30 100644
> > --- a/qemu-common.h
> > +++ b/qemu-common.h
> > @@ -273,7 +273,6 @@ typedef struct PCIEPort PCIEPort;
> >   typedef struct PCIESlot PCIESlot;
> >   typedef struct MSIMessage MSIMessage;
> >   typedef struct SerialState SerialState;
> > -typedef struct IRQState *qemu_irq;
> >   typedef struct PCMCIACardState PCMCIACardState;
> >   typedef struct MouseTransformInfo MouseTransformInfo;
> >   typedef struct uWireSlave uWireSlave;
> 
> Just move the declaration of qemu_irq to the beginning of qemu-common.h
> and leave the rest of files untouched. That also fixes the circular 
> dependency.
> 
> I already have a patch that does this, so you can integrate it in your 
> series
> instead of this one.
No doubt it's more simpler way, but IMHO It's more of a hack than fixing
problem.
It works for now but doesn't alleviate problem with header nightmare in qemu,
where everything is included in qemu-common.h and everything includes it as
well.

Any way if majority prefer simple move, I'll drop this patch in favor of yours.
 
> 
> 
> > diff --git a/sysemu.h b/sysemu.h
> > index 65552ac..f765821 100644
> > --- a/sysemu.h
> > +++ b/sysemu.h
> > @@ -9,6 +9,7 @@
> >   #include "qapi-types.h"
> >   #include "notify.h"
> >   #include "main-loop.h"
> > +#include "hw/irq.h"
> >   
> >   /* vl.c */
> >   
> 


-- 
Regards,
  Igor

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