Re: [PATCH] drivers/scsi/lpfc/lpfc_hw.h: Some minor cleanup.

[Richard Knutsson <ricknu-0@student.ltu.se>]

Denys Vlasenko wrote:
> On Tuesday 30 October 2007 10:54, Richard Knutsson wrote:
>   
> > Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
> > ---
> > Diffed against linus-git
> > Checked with script/checkpatch.pl
> >
> >
> > diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
> > index 451accd..6f56528 100644
> > --- a/drivers/scsi/lpfc/lpfc_hw.h
> > +++ b/drivers/scsi/lpfc/lpfc_hw.h
> > @@ -3158,31 +3158,30 @@ struct lpfc_sli2_slim {
> >   *
> >   * Parameters:
> >   * device : struct pci_dev 's device field
> > - *
> > - * return 1 => TRUE
> > - *        0 => FALSE
> >   */
> > -static inline int
> > +static inline bool
> >  lpfc_is_LC_HBA(unsigned short device)
> >  {
> > -	if ((device == PCI_DEVICE_ID_TFLY) ||
> > -	    (device == PCI_DEVICE_ID_PFLY) ||
> > -	    (device == PCI_DEVICE_ID_LP101) ||
> > -	    (device == PCI_DEVICE_ID_BMID) ||
> > -	    (device == PCI_DEVICE_ID_BSMB) ||
> > -	    (device == PCI_DEVICE_ID_ZMID) ||
> > -	    (device == PCI_DEVICE_ID_ZSMB) ||
> > -	    (device == PCI_DEVICE_ID_RFLY))
> > -		return 1;
> > -	else
> > -		return 0;
> > +	switch (device) {
> > +	case PCI_DEVICE_ID_TFLY:
> > +	case PCI_DEVICE_ID_PFLY:
> > +	case PCI_DEVICE_ID_LP101:
> > +	case PCI_DEVICE_ID_BMID:
> > +	case PCI_DEVICE_ID_BSMB:
> > +	case PCI_DEVICE_ID_ZMID:
> > +	case PCI_DEVICE_ID_ZSMB:
> > +	case PCI_DEVICE_ID_RFLY:
> > +		return true;
> > +	}
> > +
> > +	return false;
> >  }
> >     
>
> Why is this patch useful? 
Just simpler to read, no?
> I'd rather do this instead:
>
> -static inline int
> +static int
>
> (this function has three callsites, thus de-inlining will
> make code smaller)
>   
It is returning (and the results are used as) a boolean so why should it 
be an integer? But I have no objection to de-inline it.
Alright with:
-static inline int
+static bool
?

Richard Knutsson

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