Use check_signature to find a signature in the mmio address.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Acked-by: Mike Miller <mike.miller@xxxxxx>
Cc: Mike Miller <mike.miller@xxxxxx>
Cc: "Stephen M. Cameron" <scameron@xxxxxxxxxxxxxxxxxx>
Cc: iss_storagedev@xxxxxx
Cc: "James E.J. Bottomley" <JBottomley@xxxxxxxxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx
---
v2: select CHECK_SIGNATURE in Kconfig
drivers/scsi/Kconfig | 1 +
drivers/scsi/hpsa.c | 5 +----
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 29684c8..bea04e5 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -408,6 +408,7 @@ config BLK_DEV_3W_XXXX_RAID
config SCSI_HPSA
tristate "HP Smart Array SCSI driver"
depends on PCI && SCSI
+ select CHECK_SIGNATURE
help
This driver supports HP Smart Array Controllers (circa 2009).
It is a SCSI alternative to the cciss driver, which is a block
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;
}
--
1.7.4.4
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