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Subject[PATCH] mmc: core: Reduce code duplication to mmc_spi_send_{csd|cid}
Date
From: Yue Hu <huyue2@yulong.com>

mmc_spi_send_{csd|cid} have similar function body. Let's remove the
duplicated part to simplify the code, just add opcode to distinguish
them in changed mmc_spi_send_cxd().

Signed-off-by: Yue Hu <huyue2@yulong.com>
---
drivers/mmc/core/mmc_ops.c | 39 +++++++++------------------------------
1 file changed, 9 insertions(+), 30 deletions(-)

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 265d95e..f413474 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -296,61 +296,40 @@ int mmc_set_relative_addr(struct mmc_card *card)
return 0;
}

-static int mmc_spi_send_csd(struct mmc_host *host, u32 *csd)
+static int mmc_spi_send_cxd(struct mmc_host *host, u32 *cxd, u32 opcode)
{
int ret, i;
- __be32 *csd_tmp;
+ __be32 *cxd_tmp;

- csd_tmp = kzalloc(16, GFP_KERNEL);
- if (!csd_tmp)
+ cxd_tmp = kzalloc(16, GFP_KERNEL);
+ if (!cxd_tmp)
return -ENOMEM;

- ret = mmc_send_cxd_data(NULL, host, MMC_SEND_CSD, csd_tmp, 16);
+ ret = mmc_send_cxd_data(NULL, host, opcode, cxd_tmp, 16);
if (ret)
goto err;

for (i = 0; i < 4; i++)
- csd[i] = be32_to_cpu(csd_tmp[i]);
+ cxd[i] = be32_to_cpu(cxd_tmp[i]);

err:
- kfree(csd_tmp);
+ kfree(cxd_tmp);
return ret;
}

int mmc_send_csd(struct mmc_card *card, u32 *csd)
{
if (mmc_host_is_spi(card->host))
- return mmc_spi_send_csd(card->host, csd);
+ return mmc_spi_send_cxd(card->host, csd, MMC_SEND_CSD);

return mmc_send_cxd_native(card->host, card->rca << 16, csd,
MMC_SEND_CSD);
}

-static int mmc_spi_send_cid(struct mmc_host *host, u32 *cid)
-{
- int ret, i;
- __be32 *cid_tmp;
-
- cid_tmp = kzalloc(16, GFP_KERNEL);
- if (!cid_tmp)
- return -ENOMEM;
-
- ret = mmc_send_cxd_data(NULL, host, MMC_SEND_CID, cid_tmp, 16);
- if (ret)
- goto err;
-
- for (i = 0; i < 4; i++)
- cid[i] = be32_to_cpu(cid_tmp[i]);
-
-err:
- kfree(cid_tmp);
- return ret;
-}
-
int mmc_send_cid(struct mmc_host *host, u32 *cid)
{
if (mmc_host_is_spi(host))
- return mmc_spi_send_cid(host, cid);
+ return mmc_spi_send_cxd(host, cid, MMC_SEND_CID);

return mmc_send_cxd_native(host, 0, cid, MMC_ALL_SEND_CID);
}
--
1.9.1
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