X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Ffirewire%2Fsbp2.c;h=8d51568ee14344ee1e9e4ac11f690ae7a2c1d6a2;hb=d945cb9cce20ac7143c2de8d88b187f62db99bdc;hp=24c45635376a746ba9ae3e69ef53cfa7da1ab514;hpb=22a26e6663008e1fc4d1467aaff7e775124bce31;p=pandora-kernel.git

diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 24c45635376a..8d51568ee143 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -200,6 +200,12 @@ static struct fw_device *target_device(struct sbp2_target *tgt)
 #define SBP2_RETRY_LIMIT		0xf		/* 15 retries */
 #define SBP2_CYCLE_LIMIT		(0xc8 << 12)	/* 200 125us cycles */
 
+/*
+ * There is no transport protocol limit to the CDB length,  but we implement
+ * a fixed length only.  16 bytes is enough for disks larger than 2 TB.
+ */
+#define SBP2_MAX_CDB_SIZE		16
+
 /*
  * The default maximum s/g segment size of a FireWire controller is
  * usually 0x10000, but SBP-2 only allows 0xffff. Since buffers have to
@@ -312,7 +318,7 @@ struct sbp2_command_orb {
 		struct sbp2_pointer next;
 		struct sbp2_pointer data_descriptor;
 		__be32 misc;
-		u8 command_block[12];
+		u8 command_block[SBP2_MAX_CDB_SIZE];
 	} request;
 	struct scsi_cmnd *cmd;
 	scsi_done_fn_t done;
@@ -1146,6 +1152,8 @@ static int sbp2_probe(struct device *dev)
 	if (fw_device_enable_phys_dma(device) < 0)
 		goto fail_shost_put;
 
+	shost->max_cmd_len = SBP2_MAX_CDB_SIZE;
+
 	if (scsi_add_host(shost, &unit->device) < 0)
 		goto fail_shost_put;