libata: Clarify ata_set_lba_range_entries function
ata_set_lba_range_entries used the variable max for two different things
which was confusing. Make the function take a buffer size in bytes as
argument and return the used buffer size upon completion.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index e1e186b..62e6b9e 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2972,7 +2972,7 @@
goto invalid_fld;
buf = page_address(sg_page(scsi_sglist(scmd)));
- size = ata_set_lba_range_entries(buf, 512 / 8, block, n_block);
+ size = ata_set_lba_range_entries(buf, 512, block, n_block);
tf->protocol = ATA_PROT_DMA;
tf->hob_feature = 0;
