Re: [Qemu-devel] [PATCH v2 09/22] virtio: Remove unneeded includes

[Michael S. Tsirkin]

On Fri, Aug 10, 2018 at 09:34:32AM +0200, Juan Quintela wrote:
> "Michael S. Tsirkin" <address@hidden> wrote:
> > On Thu, Aug 09, 2018 at 08:03:03PM +0100, Dr. David Alan Gilbert wrote:
> >> * Juan Quintela (address@hidden) wrote:
> >> > They are all already included in virtio_pci.h.
> >
> > All I see in virtio_pci.h is:
> >
> > #include "standard-headers/linux/types.h"
> >
> > Weird.
> >
> > BTW what's the point of this patch?  Generally it's best not to depend
> > on headers including each other, it makes refactoring harder.
> 
> If you see the following patches, we remove blk, net, serial, scsi,
> balloon and input bits from that file, so I was removing includes patch
> by patch.
> 
> And at the end, I found that we only need that ones.
> 
> "virtio-pci.h" does too many things here, I could have split it also,
> because the mayority of the bits are only used now inside their own
> virtio-foo-pci.c.  But then, there are things that share bits,
> virtio-bus-pci is used for lots of stuff, virtio-input-pci bits are used
> in virtio-input-host-pci.c, etc,   So I decided to only do the direct
> split.
> 
> And about including directly all the files that you use, and including
> only the files that are extrictly needed, the normal argument is that
> the less includes, the faster compiler times.
> 
> Later, Juan.

That's reverse of the direction we have been going.
Pls move includes when you split up the files.

-- 
MST