The driver for Alcor Micro AU6601 and AU6621 controllers uses a pointer to
get from the private alcor_sdmmc_host structure to the generic mmc_host
structure. However the latter is always immediately preceding the former in
memory, so compute its address with a subtraction (which is cheaper than a
dereference) and drop the superfluous pointer.
No functional change intended.
Signed-off-by: Kamlesh Gurudasani <kamlesh.gurudasani@xxxxxxxxx>
---
drivers/mmc/host/alcor.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/drivers/mmc/host/alcor.c b/drivers/mmc/host/alcor.c
index 7c8f203..5bba6ee 100644
--- a/drivers/mmc/host/alcor.c
+++ b/drivers/mmc/host/alcor.c
@@ -43,7 +43,6 @@ struct alcor_sdmmc_host {
struct device *dev;
struct alcor_pci_priv *alcor_pci;
- struct mmc_host *mmc;
struct mmc_request *mrq;
struct mmc_command *cmd;
struct mmc_data *data;
@@ -276,7 +275,7 @@ static void alcor_send_cmd(struct alcor_sdmmc_host *host,
break;
default:
dev_err(host->dev, "%s: cmd->flag (0x%02x) is not valid\n",
- mmc_hostname(host->mmc), mmc_resp_type(cmd));
+ mmc_hostname(mmc_from_priv(host)), mmc_resp_type(cmd));
break;
}
@@ -317,7 +316,7 @@ static void alcor_request_complete(struct alcor_sdmmc_host *host,
host->data = NULL;
host->dma_on = 0;
- mmc_request_done(host->mmc, mrq);
+ mmc_request_done(mmc_from_priv(host), mrq);
}
static void alcor_finish_data(struct alcor_sdmmc_host *host)
@@ -547,7 +546,7 @@ static void alcor_cd_irq(struct alcor_sdmmc_host *host, u32 intmask)
alcor_request_complete(host, 1);
}
- mmc_detect_change(host->mmc, msecs_to_jiffies(1));
+ mmc_detect_change(mmc_from_priv(host), msecs_to_jiffies(1));
}
static irqreturn_t alcor_irq_thread(int irq, void *d)
@@ -1025,7 +1024,7 @@ static void alcor_hw_uninit(struct alcor_sdmmc_host *host)
static void alcor_init_mmc(struct alcor_sdmmc_host *host)
{
- struct mmc_host *mmc = host->mmc;
+ struct mmc_host *mmc = mmc_from_priv(host);
mmc->f_min = AU6601_MIN_CLOCK;
mmc->f_max = AU6601_MAX_CLOCK;
@@ -1073,7 +1072,6 @@ static int alcor_pci_sdmmc_drv_probe(struct platform_device *pdev)
}
host = mmc_priv(mmc);
- host->mmc = mmc;
host->dev = &pdev->dev;
host->cur_power_mode = MMC_POWER_UNDEFINED;
host->alcor_pci = priv;
@@ -1105,13 +1103,14 @@ static int alcor_pci_sdmmc_drv_probe(struct platform_device *pdev)
static int alcor_pci_sdmmc_drv_remove(struct platform_device *pdev)
{
struct alcor_sdmmc_host *host = dev_get_drvdata(&pdev->dev);
+ struct mmc_host *mmc = mmc_from_priv(host);
if (cancel_delayed_work_sync(&host->timeout_work))
alcor_request_complete(host, 0);
alcor_hw_uninit(host);
- mmc_remove_host(host->mmc);
- mmc_free_host(host->mmc);
+ mmc_remove_host(mmc);
+ mmc_free_host(mmc);
return 0;
}
--
2.7.4
