[SCSI] hpsa: eliminate unnecessary memcpys

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 4594200..ba3dead 100644 (file)
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -1483,14 +1483,11 @@ static void figure_bus_target_lun(struct ctlr_info *h,
        u8 *lunaddrbytes, int *bus, int *target, int *lun,
        struct hpsa_scsi_dev_t *device)
 {
-
        u32 lunid;
 
        if (is_logical_dev_addr_mode(lunaddrbytes)) {
                /* logical device */
-               memcpy(&lunid, lunaddrbytes, sizeof(lunid));
-               lunid = le32_to_cpu(lunid);
-
+               lunid = le32_to_cpu(*((__le32 *) lunaddrbytes));
                if (is_msa2xxx(h, device)) {
                        *bus = 1;
                        *target = (lunid >> 16) & 0x3fff;
@@ -1578,8 +1575,7 @@ static int hpsa_gather_lun_info(struct ctlr_info *h,
                dev_err(&h->pdev->dev, "report physical LUNs failed.\n");
                return -1;
        }
-       memcpy(nphysicals, &physdev->LUNListLength[0], sizeof(*nphysicals));
-       *nphysicals = be32_to_cpu(*nphysicals) / 8;
+       *nphysicals = be32_to_cpu(*((__be32 *)physdev->LUNListLength)) / 8;
        if (*nphysicals > HPSA_MAX_PHYS_LUN) {
                dev_warn(&h->pdev->dev, "maximum physical LUNs (%d) exceeded."
                        "  %d LUNs ignored.\n", HPSA_MAX_PHYS_LUN,
@@ -1590,8 +1586,7 @@ static int hpsa_gather_lun_info(struct ctlr_info *h,
                dev_err(&h->pdev->dev, "report logical LUNs failed.\n");
                return -1;
        }
-       memcpy(nlogicals, &logdev->LUNListLength[0], sizeof(*nlogicals));
-       *nlogicals = be32_to_cpu(*nlogicals) / 8;
+       *nlogicals = be32_to_cpu(*((__be32 *) logdev->LUNListLength)) / 8;
        /* Reject Logicals in excess of our max capability. */
        if (*nlogicals > HPSA_MAX_LUN) {
                dev_warn(&h->pdev->dev,