Re: [Qemu-devel] [PATCH v2 09/29] Include migration/qemu-file-types.h a lot less

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 8/7/19 2:25 PM, Philippe Mathieu-Daudé wrote:
> On 8/6/19 5:14 PM, Markus Armbruster wrote:
>> In my "build everything" tree, changing migration/qemu-file-types.h
>> triggers a recompile of some 2600 out of 6600 objects (not counting
>> tests and objects that don't depend on qemu/osdep.h).
>>
>> The culprit is again hw/hw.h, which supposedly includes it for
>> convenience.
>>
>> Include migration/qemu-file-types.h only where it's needed.  Touching
>> it now recompiles less than 200 objects.
>>
>> Signed-off-by: Markus Armbruster <armbru@redhat.com>
>> ---
>>  hw/acpi/piix4.c             | 1 +
>>  hw/block/virtio-blk.c       | 1 +
>>  hw/char/virtio-serial-bus.c | 1 +
>>  hw/display/virtio-gpu.c     | 1 +
>>  hw/intc/apic_common.c       | 1 +
>>  hw/nvram/eeprom93xx.c       | 1 +
>>  hw/nvram/fw_cfg.c           | 1 +
>>  hw/pci-host/piix.c          | 1 +
>>  hw/pci/msix.c               | 1 +
>>  hw/pci/pci.c                | 1 +
>>  hw/pci/shpc.c               | 1 +
>>  hw/ppc/spapr.c              | 1 +
>>  hw/s390x/s390-skeys.c       | 1 +
>>  hw/s390x/tod.c              | 1 +
>>  hw/s390x/virtio-ccw.c       | 1 +
>>  hw/scsi/mptsas.c            | 1 +
>>  hw/scsi/scsi-bus.c          | 1 +
>>  hw/scsi/scsi-disk.c         | 1 +
>>  hw/scsi/scsi-generic.c      | 1 +
>>  hw/scsi/virtio-scsi.c       | 1 +
>>  hw/timer/i8254_common.c     | 1 +
>>  hw/timer/twl92230.c         | 1 +
>>  hw/usb/redirect.c           | 1 +
>>  hw/virtio/vhost.c           | 1 +
>>  hw/virtio/virtio-mmio.c     | 1 +
>>  hw/virtio/virtio-pci.c      | 1 +
>>  hw/virtio/virtio.c          | 1 +
>>  include/hw/hw.h             | 1 -
>>  include/migration/cpu.h     | 1 +
>>  target/ppc/kvm.c            | 1 +
>>  30 files changed, 29 insertions(+), 1 deletion(-)
> [...]
>> diff --git a/include/hw/hw.h b/include/hw/hw.h
>> index a4fb2390e8..b399627cbe 100644
>> --- a/include/hw/hw.h
>> +++ b/include/hw/hw.h
>> @@ -11,7 +11,6 @@
>>  #include "exec/memory.h"
>>  #include "hw/irq.h"
>>  #include "migration/vmstate.h"
>> -#include "migration/qemu-file-types.h"
> 
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Oops another miss:

hw/intc/s390_flic_kvm.c: In function 'kvm_flic_save':
hw/intc/s390_flic_kvm.c:395:9: error: implicit declaration of function
'qemu_put_be64' [-Werror=implicit-function-declaration]
         qemu_put_be64(f, FLIC_FAILED);
         ^~~~~~~~~~~~~

>>  void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
>>  
>> diff --git a/include/migration/cpu.h b/include/migration/cpu.h
>> index 8424f1631a..21c4fc9eab 100644
>> --- a/include/migration/cpu.h
>> +++ b/include/migration/cpu.h
>> @@ -3,6 +3,7 @@
>>  #define MIGRATION_CPU_H
>>  
>>  #include "exec/cpu-defs.h"
>> +#include "migration/qemu-file-types.h"
>>  
>>  #if TARGET_LONG_BITS == 64
>>  #define qemu_put_betl qemu_put_be64