diff options
| author | Yi Zou <yi.zou@intel.com> | 2009-10-21 16:26:50 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-01-28 15:01:26 -0800 |
| commit | 34556a180553c21a2f4a935d8eb9c84d857df61c (patch) | |
| tree | 45c0060030f998b60e60f6a6d9e4ead845febe6f /drivers/scsi | |
| parent | 1e418b2888ac64de29659d693d70614583d30ddf (diff) | |
libfc: fix ddp in fc_fcp for 0 xid
commit 5e472d077f45de4f37365171bd742f18b3ef20de upstream.
xid 0 was used as an indication of invalid xid before but now xid 0
can be used as a valid exchange i. This patch fixes the ddp completion
in fcp layer, i.e., in fc_fcp.c:fc_fcp_ddp_done() function, to make sure it
does not use xid 0 for indication of an invalid xid, instead, it now
uses use FC_XID_UNKNOWN for such indication.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/libfc/fc_fcp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c index 59a4408b27b..e6c6f474236 100644 --- a/drivers/scsi/libfc/fc_fcp.c +++ b/drivers/scsi/libfc/fc_fcp.c @@ -302,10 +302,13 @@ static void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp) if (!fsp) return; + if (fsp->xfer_ddp == FC_XID_UNKNOWN) + return; + lp = fsp->lp; - if (fsp->xfer_ddp && lp->tt.ddp_done) { + if (lp->tt.ddp_done) { fsp->xfer_len = lp->tt.ddp_done(lp, fsp->xfer_ddp); - fsp->xfer_ddp = 0; + fsp->xfer_ddp = FC_XID_UNKNOWN; } } @@ -1708,6 +1711,7 @@ int fc_queuecommand(struct scsi_cmnd *sc_cmd, void (*done)(struct scsi_cmnd *)) fsp->cmd = sc_cmd; /* save the cmd */ fsp->lp = lp; /* save the softc ptr */ fsp->rport = rport; /* set the remote port ptr */ + fsp->xfer_ddp = FC_XID_UNKNOWN; sc_cmd->scsi_done = done; /* |