Merge branch 'upstream'
[linux-2.6.git] / drivers / scsi / libata-scsi.c
index bb30fcdc929763d767ad369267207dff7a624a53..d5c4ae19b9061460f04da4060532a3d0bdbd5303 100644 (file)
@@ -987,9 +987,13 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, const u8 *sc
        if (dev->flags & ATA_DFLAG_LBA) {
                tf->flags |= ATA_TFLAG_LBA;
 
-               if (dev->flags & ATA_DFLAG_LBA48) {
-                       if (n_block > (64 * 1024))
-                               goto invalid_fld;
+               if (lba_28_ok(block, n_block)) {
+                       /* use LBA28 */
+                       tf->command = ATA_CMD_VERIFY;
+                       tf->device |= (block >> 24) & 0xf;
+               } else if (lba_48_ok(block, n_block)) {
+                       if (!(dev->flags & ATA_DFLAG_LBA48))
+                               goto out_of_range;
 
                        /* use LBA48 */
                        tf->flags |= ATA_TFLAG_LBA48;
@@ -1000,15 +1004,9 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, const u8 *sc
                        tf->hob_lbah = (block >> 40) & 0xff;
                        tf->hob_lbam = (block >> 32) & 0xff;
                        tf->hob_lbal = (block >> 24) & 0xff;
-               } else {
-                       if (n_block > 256)
-                               goto invalid_fld;
-
-                       /* use LBA28 */
-                       tf->command = ATA_CMD_VERIFY;
-
-                       tf->device |= (block >> 24) & 0xf;
-               }
+               } else
+                       /* request too large even for LBA48 */
+                       goto out_of_range;
 
                tf->nsect = n_block & 0xff;
 
@@ -1021,8 +1019,8 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, const u8 *sc
                /* CHS */
                u32 sect, head, cyl, track;
 
-               if (n_block > 256)
-                       goto invalid_fld;
+               if (!lba_28_ok(block, n_block))
+                       goto out_of_range;
 
                /* Convert LBA to CHS */
                track = (u32)block / dev->sectors;
@@ -1135,9 +1133,11 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
        if (dev->flags & ATA_DFLAG_LBA) {
                tf->flags |= ATA_TFLAG_LBA;
 
-               if (dev->flags & ATA_DFLAG_LBA48) {
-                       /* The request -may- be too large for LBA48. */
-                       if ((block >> 48) || (n_block > 65536))
+               if (lba_28_ok(block, n_block)) {
+                       /* use LBA28 */
+                       tf->device |= (block >> 24) & 0xf;
+               } else if (lba_48_ok(block, n_block)) {
+                       if (!(dev->flags & ATA_DFLAG_LBA48))
                                goto out_of_range;
 
                        /* use LBA48 */
@@ -1148,15 +1148,9 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
                        tf->hob_lbah = (block >> 40) & 0xff;
                        tf->hob_lbam = (block >> 32) & 0xff;
                        tf->hob_lbal = (block >> 24) & 0xff;
-               } else { 
-                       /* use LBA28 */
-
-                       /* The request -may- be too large for LBA28. */
-                       if ((block >> 28) || (n_block > 256))
-                               goto out_of_range;
-
-                       tf->device |= (block >> 24) & 0xf;
-               }
+               } else
+                       /* request too large even for LBA48 */
+                       goto out_of_range;
 
                ata_rwcmd_protocol(qc);
 
@@ -1173,7 +1167,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm
                u32 sect, head, cyl, track;
 
                /* The request -may- be too large for CHS addressing. */
-               if ((block >> 28) || (n_block > 256))
+               if (!lba_28_ok(block, n_block))
                        goto out_of_range;
 
                ata_rwcmd_protocol(qc);