mpt2sas: fix undefined reference to `__udivdi3' compilation errors

This patch will fix the below compilation errors on i386 ARCH

drivers/built-in.o: In function `_scsih_qcmd':
mpt2sas_scsih.c:(.text+0x1e7b56): undefined reference to `__udivdi3'
mpt2sas_scsih.c:(.text+0x1e7b8a): undefined reference to `__umoddi3'

Used sector_div() API to fix above compilation errors.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 992a224e51ee4ff17021e10bf203197a42cf449e..c80ed0482649c4ca92452c0ecd16fe6ccb89c48c 100644 (file)
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -3860,7 +3860,7 @@ _scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
        struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request,
        u16 smid)
 {
-       sector_t v_lba, p_lba, stripe_off, stripe_unit, column, io_size;
+       sector_t v_lba, p_lba, stripe_off, column, io_size;
        u32 stripe_sz, stripe_exp;
        u8 num_pds, cmd = scmd->cmnd[0];
 
@@ -3888,9 +3888,9 @@ _scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 
        num_pds = raid_device->num_pds;
        p_lba = v_lba >> stripe_exp;
-       stripe_unit = p_lba / num_pds;
-       column = p_lba % num_pds;
-       p_lba = (stripe_unit << stripe_exp) + stripe_off;
+       column = sector_div(p_lba, num_pds);
+       p_lba = (p_lba << stripe_exp) + stripe_off;
+
        mpi_request->DevHandle = cpu_to_le16(raid_device->pd_handle[column]);
 
        if (cmd == READ_10 || cmd == WRITE_10)