[PATCH 43/64] libfc: discovery restart sequence error fix

Robert Love
2009-08-25T21:02:15Z

When an RSCN is received during fabric discovery, it restarts.
After the restart, disc->seq_count was incremented, so when
the first frame was received, it was considered "out of sequence".
That left the state disc->active, preventing further discoveries.

Change to advance the sequence count before parsing, so that it
won't be changed after a potential restart.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---

drivers/scsi/libfc/fc_disc.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c
index ddf4944..fd3a6b2 100644
--- a/drivers/scsi/libfc/fc_disc.c
+++ b/drivers/scsi/libfc/fc_disc.c
@@ -629,11 +629,10 @@ static void fc_disc_gpn_ft_resp(struct fc_seq *sp, struct fc_frame *fp,
seq_cnt, disc->seq_count, fr_sof(fp), fr_eof(fp));
}
if (buf) {
+ disc->seq_count++;
error = fc_disc_gpn_ft_parse(disc, buf, len);
if (error)
fc_disc_error(disc, fp);
- else
- disc->seq_count++;
}
fc_frame_free(fp);