From dbb2da557a6a87c88bbb4b1fef037091b57f701b Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 18 Feb 2022 11:51:15 -0800 Subject: 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 Signed-off-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/scsi/a2091.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'drivers/scsi/a2091.c') diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c index bcbce23478b8..cf703a1ecdda 100644 --- a/drivers/scsi/a2091.c +++ b/drivers/scsi/a2091.c @@ -44,16 +44,17 @@ static irqreturn_t a2091_intr(int irq, void *data) static int dma_setup(struct scsi_cmnd *cmd, int dir_in) { + struct scsi_pointer *scsi_pointer = WD33C93_scsi_pointer(cmd); struct Scsi_Host *instance = cmd->device->host; struct a2091_hostdata *hdata = shost_priv(instance); struct WD33C93_hostdata *wh = &hdata->wh; struct a2091_scsiregs *regs = hdata->regs; unsigned short cntr = CNTR_PDMD | CNTR_INTEN; - unsigned long addr = virt_to_bus(cmd->SCp.ptr); + unsigned long addr = virt_to_bus(scsi_pointer->ptr); /* don't allow DMA if the physical address is bad */ if (addr & A2091_XFER_MASK) { - wh->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff; + wh->dma_bounce_len = (scsi_pointer->this_residual + 511) & ~0x1ff; wh->dma_bounce_buffer = kmalloc(wh->dma_bounce_len, GFP_KERNEL); @@ -77,8 +78,8 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in) if (!dir_in) { /* copy to bounce buffer for a write */ - memcpy(wh->dma_bounce_buffer, cmd->SCp.ptr, - cmd->SCp.this_residual); + memcpy(wh->dma_bounce_buffer, scsi_pointer->ptr, + scsi_pointer->this_residual); } } @@ -96,10 +97,10 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in) if (dir_in) { /* invalidate any cache */ - cache_clear(addr, cmd->SCp.this_residual); + cache_clear(addr, scsi_pointer->this_residual); } else { /* push any dirty cache */ - cache_push(addr, cmd->SCp.this_residual); + cache_push(addr, scsi_pointer->this_residual); } /* start DMA */ regs->ST_DMA = 1; @@ -111,6 +112,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in) static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, int status) { + struct scsi_pointer *scsi_pointer = WD33C93_scsi_pointer(SCpnt); struct a2091_hostdata *hdata = shost_priv(instance); struct WD33C93_hostdata *wh = &hdata->wh; struct a2091_scsiregs *regs = hdata->regs; @@ -143,8 +145,8 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, /* copy from a bounce buffer, if necessary */ if (status && wh->dma_bounce_buffer) { if (wh->dma_dir) - memcpy(SCpnt->SCp.ptr, wh->dma_bounce_buffer, - SCpnt->SCp.this_residual); + memcpy(scsi_pointer->ptr, wh->dma_bounce_buffer, + scsi_pointer->this_residual); kfree(wh->dma_bounce_buffer); wh->dma_bounce_buffer = NULL; wh->dma_bounce_len = 0; @@ -165,6 +167,7 @@ static struct scsi_host_template a2091_scsi_template = { .sg_tablesize = SG_ALL, .cmd_per_lun = CMD_PER_LUN, .dma_boundary = PAGE_SIZE - 1, + .cmd_size = sizeof(struct scsi_pointer), }; static int a2091_probe(struct zorro_dev *z, const struct zorro_device_id *ent) -- cgit