diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2022-02-18 11:51:15 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-02-22 21:11:07 -0500 |
| commit | dbb2da557a6a87c88bbb4b1fef037091b57f701b (patch) | |
| tree | ed44fc6aaccade148bf6277803ce98454508a91d /drivers/scsi/sgiwd93.c | |
| parent | 70d1b920af62a7d065aa7a0d031dd1af44e8b31b (diff) | |
scsi: wd33c93: Move the SCSI pointer to private command data
Set .cmd_size in the SCSI host template instead of using the SCSI pointer
from struct scsi_cmnd. This patch prepares for removal of the SCSI pointer
from struct scsi_cmnd.
Link: https://lore.kernel.org/r/20220218195117.25689-48-bvanassche@acm.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/sgiwd93.c')
| -rw-r--r-- | drivers/scsi/sgiwd93.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/scsi/sgiwd93.c b/drivers/scsi/sgiwd93.c index e797d89c873b..57d5dff62f63 100644 --- a/drivers/scsi/sgiwd93.c +++ b/drivers/scsi/sgiwd93.c @@ -69,14 +69,15 @@ static irqreturn_t sgiwd93_intr(int irq, void *dev_id) static inline void fill_hpc_entries(struct ip22_hostdata *hd, struct scsi_cmnd *cmd, int din) { - unsigned long len = cmd->SCp.this_residual; - void *addr = cmd->SCp.ptr; + struct scsi_pointer *scsi_pointer = WD33C93_scsi_pointer(cmd); + unsigned long len = scsi_pointer->this_residual; + void *addr = scsi_pointer->ptr; dma_addr_t physaddr; unsigned long count; struct hpc_chunk *hcp; physaddr = dma_map_single(hd->dev, addr, len, DMA_DIR(din)); - cmd->SCp.dma_handle = physaddr; + scsi_pointer->dma_handle = physaddr; hcp = hd->cpu; while (len) { @@ -106,6 +107,7 @@ void fill_hpc_entries(struct ip22_hostdata *hd, struct scsi_cmnd *cmd, int din) static int dma_setup(struct scsi_cmnd *cmd, int datainp) { + struct scsi_pointer *scsi_pointer = WD33C93_scsi_pointer(cmd); struct ip22_hostdata *hdata = host_to_hostdata(cmd->device->host); struct hpc3_scsiregs *hregs = (struct hpc3_scsiregs *) cmd->device->host->base; @@ -120,7 +122,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int datainp) * obvious). IMHO a better fix would be, not to do these dma setups * in the first place. */ - if (cmd->SCp.ptr == NULL || cmd->SCp.this_residual == 0) + if (scsi_pointer->ptr == NULL || scsi_pointer->this_residual == 0) return 1; fill_hpc_entries(hdata, cmd, datainp); @@ -140,13 +142,14 @@ static int dma_setup(struct scsi_cmnd *cmd, int datainp) static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, int status) { + struct scsi_pointer *scsi_pointer = WD33C93_scsi_pointer(SCpnt); struct ip22_hostdata *hdata = host_to_hostdata(instance); struct hpc3_scsiregs *hregs; if (!SCpnt) return; - if (SCpnt->SCp.ptr == NULL || SCpnt->SCp.this_residual == 0) + if (scsi_pointer->ptr == NULL || scsi_pointer->this_residual == 0) return; hregs = (struct hpc3_scsiregs *) SCpnt->device->host->base; @@ -160,8 +163,8 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, barrier(); } hregs->ctrl = 0; - dma_unmap_single(hdata->dev, SCpnt->SCp.dma_handle, - SCpnt->SCp.this_residual, + dma_unmap_single(hdata->dev, scsi_pointer->dma_handle, + scsi_pointer->this_residual, DMA_DIR(hdata->wh.dma_dir)); pr_debug("\n"); @@ -213,6 +216,7 @@ static struct scsi_host_template sgiwd93_template = { .sg_tablesize = SG_ALL, .cmd_per_lun = 8, .dma_boundary = PAGE_SIZE - 1, + .cmd_size = sizeof(struct scsi_pointer), }; static int sgiwd93_probe(struct platform_device *pdev) |