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| author | Boaz Harrosh <bharrosh@panasas.com> | 2007-09-09 21:16:58 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-01-11 18:22:41 -0600 |
| commit | 57643c711c3759623e7ac651a4a418858cdaeae5 (patch) | |
| tree | 8ffd1a1b8df766a1081228b8e0e2b901c5e30273 /drivers/scsi/ppa.c | |
| parent | 74286a3c276bca449f934b2cd921f9bced996e04 (diff) | |
| download | lwn-57643c711c3759623e7ac651a4a418858cdaeae5.tar.gz lwn-57643c711c3759623e7ac651a4a418858cdaeae5.zip | |
[SCSI] ppa: convert to accessors and !use_sg cleanup
- convert to accessors and !use_sg cleanup
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/ppa.c')
| -rw-r--r-- | drivers/scsi/ppa.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index 67ee51a3d7e1..f655ae320b48 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -750,18 +750,16 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd) cmd->SCp.phase++; case 4: /* Phase 4 - Setup scatter/gather buffers */ - if (cmd->use_sg) { - /* if many buffers are available, start filling the first */ - cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer; + if (scsi_bufflen(cmd)) { + cmd->SCp.buffer = scsi_sglist(cmd); cmd->SCp.this_residual = cmd->SCp.buffer->length; cmd->SCp.ptr = sg_virt(cmd->SCp.buffer); } else { - /* else fill the only available buffer */ cmd->SCp.buffer = NULL; - cmd->SCp.this_residual = cmd->request_bufflen; - cmd->SCp.ptr = cmd->request_buffer; + cmd->SCp.this_residual = 0; + cmd->SCp.ptr = NULL; } - cmd->SCp.buffers_residual = cmd->use_sg - 1; + cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1; cmd->SCp.phase++; case 5: /* Phase 5 - Data transfer stage */ |