Use check_signature to find a signature in the mmio address.
Signed-off-by: Akinobu Mita<akinobu.mita@xxxxxxxxx>
Cc: Mike Miller<mike.miller@xxxxxx>
Cc: iss_storagedev@xxxxxx
Cc: "James E.J. Bottomley"<JBottomley@xxxxxxxxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx
---
drivers/scsi/hpsa.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index ddbf5fe..c867eeb 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3839,10 +3839,7 @@ static void __devinit hpsa_find_board_params(struct ctlr_info *h)
static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
{
- if ((readb(&h->cfgtable->Signature[0]) != 'C') ||
- (readb(&h->cfgtable->Signature[1]) != 'I') ||
- (readb(&h->cfgtable->Signature[2]) != 'S') ||
- (readb(&h->cfgtable->Signature[3]) != 'S')) {
+ if (!check_signature(h->cfgtable->Signature, "CISS", 4)) {
dev_warn(&h->pdev->dev, "not a valid CISS config table\n");
return false;
}