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

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Denys Vlasenko wrote:
On Tuesday 30 October 2007 10:54, Richard Knutsson wrote:
Signed-off-by: Richard Knutsson <[email protected]>
---
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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