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authorYi Zou <yi.zou@intel.com>2010-07-20 15:19:10 -0700
committerJames Bottomley <James.Bottomley@suse.de>2010-07-28 09:05:44 -0500
commitba402804ac2447ad41f4919603bf3e6f6db63110 (patch)
tree86ae6efbc2456403a816e33594d6d849cbd854b7 /drivers/scsi
parent2cf75f1c8aa4cab3ace57f9159f1dc85cba69d38 (diff)
[SCSI] libfc: fix slowpath error from WARN_ON in fc_fcp_send_data
This is exposed by a mpio test using EMC CLARiiON targets when LUN tresspassing happens, the burst length from the XFER_READY for the MODE SELECT(10) is 19 bytes, much smaller than FC_MIN_MAX_PAYLOAD as 256 bytes. This patch removes the related two WARN_ON()s. 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')
-rw-r--r--drivers/scsi/libfc/fc_fcp.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 8914f1e95b7..a0a3ae7d861 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -580,10 +580,8 @@ static int fc_fcp_send_data(struct fc_fcp_pkt *fsp, struct fc_seq *seq,
fsp, seq_blen, lport->lso_max, t_blen);
}
- WARN_ON(t_blen < FC_MIN_MAX_PAYLOAD);
if (t_blen > 512)
t_blen &= ~(512 - 1); /* round down to block size */
- WARN_ON(t_blen < FC_MIN_MAX_PAYLOAD); /* won't go below 256 */
sc = fsp->cmd;
remaining = seq_blen;