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ath6kl: Restrict memcpy to bounce buffer only for write request 

No need to copy received local buffer content to bounce buffer
(DMA buffer) while performing sync READ operation from the chip.

It's applicable for only WRITE operation.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Raja Mani 2012-03-02 18:02:08 +05:30 committed by Kalle Valo
parent d1f4159723
commit daa16bc52a
1 changed files with 4 additions and 1 deletions
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5
drivers/net/wireless/ath/ath6kl/sdio.c
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@ -405,7 +405,10 @@ static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf,
return -ENOMEM;
mutex_lock(&ar_sdio->dma_buffer_mutex);
tbuf = ar_sdio->dma_buffer;
memcpy(tbuf, buf, len);
if (request & HIF_WRITE)
memcpy(tbuf, buf, len);
bounced = true;
} else
tbuf = buf;