mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-29 23:53:32 +00:00
Code Issues Releases Wiki Activity

sata_dwc_460ex: re-use hsdev->dev instead of dwc_dev

Browse source 
This patch re-uses hsdev->dev which is allocated on heap. Therefore, the
private structure, which is global variable, is reduced by one field.

In one case ap->dev is used and there it seems to be right decision.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Andy Shevchenko 2015-03-03 22:41:22 +02:00 committed by Tejun Heo
parent 8b3444852a
commit db7a657f3c
1 changed files with 11 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
drivers/ata/sata_dwc_460ex.c
View file

@ -194,7 +194,6 @@ struct sata_dwc_host_priv {
void __iomem *scr_addr_sstatus;
u32 sata_dwc_sactive_issued ;
u32 sata_dwc_sactive_queued ;
struct device *dwc_dev;
};
static struct sata_dwc_host_priv host_pvt;
@ -252,16 +251,16 @@ static const char *get_dma_dir_descript(int dma_dir)
}
}
static void sata_dwc_tf_dump(struct ata_taskfile *tf)
static void sata_dwc_tf_dump(struct ata_port *ap, struct ata_taskfile *tf)
{
dev_vdbg(host_pvt.dwc_dev,
dev_vdbg(ap->dev,
"taskfile cmd: 0x%02x protocol: %s flags: 0x%lx device: %x\n",
tf->command, get_prot_descript(tf->protocol), tf->flags,
tf->device);
dev_vdbg(host_pvt.dwc_dev,
dev_vdbg(ap->dev,
"feature: 0x%02x nsect: 0x%x lbal: 0x%x lbam: 0x%x lbah: 0x%x\n",
tf->feature, tf->nsect, tf->lbal, tf->lbam, tf->lbah);
dev_vdbg(host_pvt.dwc_dev,
dev_vdbg(ap->dev,
"hob_feature: 0x%02x hob_nsect: 0x%x hob_lbal: 0x%x hob_lbam: 0x%x hob_lbah: 0x%x\n",
tf->hob_feature, tf->hob_nsect, tf->hob_lbal, tf->hob_lbam,
tf->hob_lbah);
@ -337,7 +336,7 @@ static struct dma_async_tx_descriptor *dma_dwc_xfer_setup(struct ata_queued_cmd
desc->callback = dma_dwc_xfer_done;
desc->callback_param = hsdev;
dev_dbg(host_pvt.dwc_dev, "%s sg: 0x%p, count: %d addr: %pad\n",
dev_dbg(hsdev->dev, "%s sg: 0x%p, count: %d addr: %pad\n",
__func__, qc->sg, qc->n_elem, &addr);
return desc;
@ -687,7 +686,7 @@ static void sata_dwc_clear_dmacr(struct sata_dwc_device_port *hsdevp, u8 tag)
* This should not happen, it indicates the driver is out of
* sync. If it does happen, clear dmacr anyway.
*/
dev_err(host_pvt.dwc_dev,
dev_err(hsdev->dev,
"%s DMA protocol RX and TX DMA not pending tag=0x%02x pending=%d dmacr: 0x%08x\n",
__func__, tag, hsdevp->dma_pending[tag],
in_le32(&hsdev->sata_dwc_regs->dmacr));
@ -779,7 +778,7 @@ static void sata_dwc_enable_interrupts(struct sata_dwc_device *hsdev)
*/
out_le32(&hsdev->sata_dwc_regs->errmr, SATA_DWC_SERROR_ERR_BITS);
dev_dbg(host_pvt.dwc_dev, "%s: INTMR = 0x%08x, ERRMR = 0x%08x\n",
dev_dbg(hsdev->dev, "%s: INTMR = 0x%08x, ERRMR = 0x%08x\n",
__func__, in_le32(&hsdev->sata_dwc_regs->intmr),
in_le32(&hsdev->sata_dwc_regs->errmr));
}
@ -855,7 +854,7 @@ static int sata_dwc_port_start(struct ata_port *ap)
hsdevp->hsdev = hsdev;
hsdevp->dws = &sata_dwc_dma_dws;
hsdevp->dws->dma_dev = host_pvt.dwc_dev;
hsdevp->dws->dma_dev = hsdev->dev;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
@ -863,7 +862,7 @@ static int sata_dwc_port_start(struct ata_port *ap)
/* Acquire DMA channel */
hsdevp->chan = dma_request_channel(mask, sata_dwc_dma_filter, hsdevp);
if (!hsdevp->chan) {
dev_err(host_pvt.dwc_dev, "%s: dma channel unavailable\n",
dev_err(hsdev->dev, "%s: dma channel unavailable\n",
__func__);
err = -EAGAIN;
goto CLEANUP_ALLOC;
@ -990,7 +989,7 @@ static void sata_dwc_bmdma_start_by_tag(struct ata_queued_cmd *qc, u8 tag)
"%s qc=%p tag: %x cmd: 0x%02x dma_dir: %s start_dma? %x\n",
__func__, qc, tag, qc->tf.command,
get_dma_dir_descript(qc->dma_dir), start_dma);
sata_dwc_tf_dump(&(qc->tf));
sata_dwc_tf_dump(ap, &qc->tf);
if (start_dma) {
reg = core_scr_read(SCR_ERROR);
@ -1244,7 +1243,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
}
/* Save dev for later use in dev_xxx() routines */
host_pvt.dwc_dev = &ofdev->dev;
hsdev->dev = &ofdev->dev;
hsdev->dma->dev = &ofdev->dev;