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authorYi Zou <yi.zou@intel.com>2011-01-28 16:03:15 -0800
committerJames Bottomley <James.Bottomley@suse.de>2011-02-12 10:56:53 -0600
commitf56635a8695f6b4fccf546cb2d5cf246d1892a0f (patch)
tree9ed9c69c322e34e6c0bdbcd3e1d6e1b863d50d9f /drivers/scsi/libfc
parent79775567e0439ca47eb9f501e52c4b713d44cf89 (diff)
downloadop-kernel-dev-f56635a8695f6b4fccf546cb2d5cf246d1892a0f.zip
op-kernel-dev-f56635a8695f6b4fccf546cb2d5cf246d1892a0f.tar.gz
[SCSI] libfc: always initialize the FCoE DDP exchange id for fsp as FC_XID_UNKNOWN
The fsp's xfer_ddp is used as indication of the exchange id for the DDPed I/O. We should always initialize it as FC_XID_UNKNOWN for a newly allocated fsp, otherwise the fsp allocated in fc_fcp, i.e., not from queuecommand like LUN RESET that is not doing DDP may still think DDP is setup for it since xid 0 is valid and goes on to call fc_fcp_ddp_done() in fc_fcp_resp() from fc_tm_done(). So, set xfer_ddp as FC_XID_UNKNOWN in fc_fcp_pkt_alloc() now. Also removes the setting of fsp->lp as it's already done when fsp is allocated. Signed-off-by: Yi Zou <yi.zou@intel.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/libfc')
-rw-r--r--drivers/scsi/libfc/fc_fcp.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 5962d1a..21a64d4 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -155,6 +155,7 @@ static struct fc_fcp_pkt *fc_fcp_pkt_alloc(struct fc_lport *lport, gfp_t gfp)
if (fsp) {
memset(fsp, 0, sizeof(*fsp));
fsp->lp = lport;
+ fsp->xfer_ddp = FC_XID_UNKNOWN;
atomic_set(&fsp->ref_cnt, 1);
init_timer(&fsp->timer);
INIT_LIST_HEAD(&fsp->list);
@@ -1842,9 +1843,7 @@ static int fc_queuecommand_lck(struct scsi_cmnd *sc_cmd, void (*done)(struct scs
* build the libfc request pkt
*/
fsp->cmd = sc_cmd; /* save the cmd */
- fsp->lp = lport; /* save the softc ptr */
fsp->rport = rport; /* set the remote port ptr */
- fsp->xfer_ddp = FC_XID_UNKNOWN;
sc_cmd->scsi_done = done;
/*
@@ -2112,7 +2111,6 @@ int fc_eh_device_reset(struct scsi_cmnd *sc_cmd)
* the sc passed in is not setup for execution like when sent
* through the queuecommand callout.
*/
- fsp->lp = lport; /* save the softc ptr */
fsp->rport = rport; /* set the remote port ptr */
/*
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