[SCSI] arcmsr: upper 32 of dma address lost

[cascardo/linux.git] / drivers / scsi / arcmsr / arcmsr_hba.c

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 4f6a30b..652b41b 100644 (file)
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -2500,16 +2500,15 @@ static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
 static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
 {
        uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
-       dma_addr_t dma_coherent_handle;
+
        /*
        ********************************************************************
        ** here we need to tell iop 331 our freeccb.HighPart
        ** if freeccb.HighPart is not zero
        ********************************************************************
        */
-       dma_coherent_handle = acb->dma_coherent_handle;
-       cdb_phyaddr = (uint32_t)(dma_coherent_handle);
-       cdb_phyaddr_hi32 = (uint32_t)((cdb_phyaddr >> 16) >> 16);
+       cdb_phyaddr = lower_32_bits(acb->dma_coherent_handle);
+       cdb_phyaddr_hi32 = upper_32_bits(acb->dma_coherent_handle);
        acb->cdb_phyaddr_hi32 = cdb_phyaddr_hi32;
        /*
        ***********************************************************************