Re: [PATCH v1] virtio-pci: Improve code style for including header files

[Michael S. Tsirkin]

On Tue, May 30, 2023 at 10:07:23AM -0400, Feng Liu wrote:
> 
> 
> On 2023-05-30 a.m.7:27, Michael S. Tsirkin wrote:
> > External email: Use caution opening links or attachments
> > 
> > 
> > On Mon, May 29, 2023 at 02:17:29PM -0400, Feng Liu wrote:
> > > Fix code style related to including header file. Include header files
> > > before declaring macro definitions to avoid conflicts.
> > > 
> > > Signed-off-by: Feng Liu <feliu@xxxxxxxxxx>
> > > Reviewed-by: Jiri Pirko <jiri@xxxxxxxxxx>
> > 
> > Which conflicts? These macros are there precisely to change
> > how the header behaves.
> > 
> 
> Hi Michael
>     I think including the header files should be placed before the macro
> definition.
>     If VIRTIO_PCI_NO_LEGACY and VIRTIO_RING_NO_LEGACY are needed for control
> header file, we should put them at the beginning of virtio_pci_common.h.
> 
> What do you think?

I think you should read the code in question not make guesses.

> > > ---
> > >   drivers/virtio/virtio_pci_modern.c | 3 ++-
> > >   1 file changed, 2 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
> > > index d6bb68ba84e5..b21a489e0086 100644
> > > --- a/drivers/virtio/virtio_pci_modern.c
> > > +++ b/drivers/virtio/virtio_pci_modern.c
> > > @@ -15,9 +15,10 @@
> > >    */
> > > 
> > >   #include <linux/delay.h>
> > > +#include "virtio_pci_common.h"
> > > +
> > >   #define VIRTIO_PCI_NO_LEGACY
> > >   #define VIRTIO_RING_NO_LEGACY
> > > -#include "virtio_pci_common.h"
> > > 
> > >   static u64 vp_get_features(struct virtio_device *vdev)
> > >   {
> > > --
> > > 2.37.1 (Apple Git-137.1)
> >