From bc90c8632f63cd94246e3fb6f1b6d7ecba48f1a0 Mon Sep 17 00:00:00 2001 From: Christof Schmitt Date: Fri, 15 May 2009 13:18:17 +0200 Subject: [PATCH] [SCSI] zfcp: Remove unnecessary default case and assignments enum dma_data_direction only has the 4 values DMA_BIDIRECTIONAL, DMA_TO_DEVICE, DMA_FROM_DEVICE and DMA_NONE. No need to have the default case. While changing this, setup sbtype in one place to make sparse happy. The default value of retval is already -EIO, so remove the additional assignment for these two cases. Reviewed-by: Swen Schillig Signed-off-by: Christof Schmitt Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_fsf.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 74dee32..8411730 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -2314,7 +2314,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, { struct zfcp_fsf_req *req; struct fcp_cmnd_iu *fcp_cmnd_iu; - unsigned int sbtype; + unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; int real_bytes, retval = -EIO; struct zfcp_adapter *adapter = unit->port->adapter; @@ -2356,11 +2356,9 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, switch (scsi_cmnd->sc_data_direction) { case DMA_NONE: req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; - sbtype = SBAL_FLAGS0_TYPE_READ; break; case DMA_FROM_DEVICE: req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; - sbtype = SBAL_FLAGS0_TYPE_READ; fcp_cmnd_iu->rddata = 1; break; case DMA_TO_DEVICE: @@ -2369,8 +2367,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, fcp_cmnd_iu->wddata = 1; break; case DMA_BIDIRECTIONAL: - default: - retval = -EIO; goto failed_scsi_cmnd; } @@ -2394,9 +2390,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, scsi_sglist(scsi_cmnd), FSF_MAX_SBALS_PER_REQ); if (unlikely(real_bytes < 0)) { - if (req->sbal_number < FSF_MAX_SBALS_PER_REQ) - retval = -EIO; - else { + if (req->sbal_number >= FSF_MAX_SBALS_PER_REQ) { dev_err(&adapter->ccw_device->dev, "Oversize data package, unit 0x%016Lx " "on port 0x%016Lx closed\n", -- 2.7.4