src/patches/suse-2.6.27.31/patches.fixes/scsi-dh-alua-group-id-mask

   1 From: Ilgu Hong <ilgu.hong@promise.com>
   2 Subject: Incorrect masking for group ID in scsi_dh_alua
   3
   4
   5 The buf[i] is a byte but we are only asking 4 bits off the
   6 group_id. This patch has us take off a byte.
   7
   8 Signed-off-by: Ilgu Hong <ilgu.hong@promise.com>
   9 Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
  10 Signed-off-by: Hannes Reinecke <hare@suse.de>
  11
  12 diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
  13 index 1000acc..fc7003a 100644
  14 --- a/drivers/scsi/device_handler/scsi_dh_alua.c
  15 +++ b/drivers/scsi/device_handler/scsi_dh_alua.c
  16 @@ -210,8 +210,8 @@ static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h)
  17         /* Prepare the data buffer */
  18         memset(h->buff, 0, stpg_len);
  19         h->buff[4] = TPGS_STATE_OPTIMIZED & 0x0f;
  20 -       h->buff[6] = (h->group_id >> 8) & 0x0f;
  21 -       h->buff[7] = h->group_id & 0x0f;
  22 +       h->buff[6] = (h->group_id >> 8) & 0xff;
  23 +       h->buff[7] = h->group_id & 0xff;
  24
  25         rq = get_alua_req(sdev, h->buff, stpg_len, WRITE);
  26         if (!rq)