[PATCH] mark several libata datastructures const

[powerpc.git] / drivers / scsi / sata_qstor.c

diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index d274ab2..6b9c3ae 100644 (file)
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -41,7 +41,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME       "sata_qstor"
-#define DRV_VERSION    "0.04"
+#define DRV_VERSION    "0.05"
 
 enum {
        QS_PORTS                = 4,
@@ -170,7 +170,7 @@ static const struct ata_port_operations qs_ata_ops = {
        .bmdma_status           = qs_bmdma_status,
 };
 
-static struct ata_port_info qs_port_info[] = {
+static const struct ata_port_info qs_port_info[] = {
        /* board_2068_idx */
        {
                .sht            = &qs_ata_sht,
@@ -184,7 +184,7 @@ static struct ata_port_info qs_port_info[] = {
        },
 };
 
-static struct pci_device_id qs_ata_pci_tbl[] = {
+static const struct pci_device_id qs_ata_pci_tbl[] = {
        { PCI_VENDOR_ID_PDC, 0x2068, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
          board_2068_idx },
 
@@ -268,7 +268,7 @@ static void qs_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
        writel(val, (void __iomem *)(ap->ioaddr.scr_addr + (sc_reg * 8)));
 }
 
-static void qs_fill_sg(struct ata_queued_cmd *qc)
+static unsigned int qs_fill_sg(struct ata_queued_cmd *qc)
 {
        struct scatterlist *sg;
        struct ata_port *ap = qc->ap;
@@ -296,6 +296,8 @@ static void qs_fill_sg(struct ata_queued_cmd *qc)
                                        (unsigned long long)addr, len);
                nelem++;
        }
+
+       return nelem;
 }
 
 static void qs_qc_prep(struct ata_queued_cmd *qc)
@@ -304,6 +306,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
        u8 dflags = QS_DF_PORD, *buf = pp->pkt;
        u8 hflags = QS_HF_DAT | QS_HF_IEN | QS_HF_VLD;
        u64 addr;
+       unsigned int nelem;
 
        VPRINTK("ENTER\n");
 
@@ -313,7 +316,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
                return;
        }
 
-       qs_fill_sg(qc);
+       nelem = qs_fill_sg(qc);
 
        if ((qc->tf.flags & ATA_TFLAG_WRITE))
                hflags |= QS_HF_DIRO;
@@ -324,7 +327,7 @@ static void qs_qc_prep(struct ata_queued_cmd *qc)
        buf[ 0] = QS_HCB_HDR;
        buf[ 1] = hflags;
        *(__le32 *)(&buf[ 4]) = cpu_to_le32(qc->nsect * ATA_SECT_SIZE);
-       *(__le32 *)(&buf[ 8]) = cpu_to_le32(qc->n_elem);
+       *(__le32 *)(&buf[ 8]) = cpu_to_le32(nelem);
        addr = ((u64)pp->pkt_dma) + QS_CPB_BYTES;
        *(__le64 *)(&buf[16]) = cpu_to_le64(addr);