From: Raja Mani <[email protected]>
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 <[email protected]>
---
drivers/net/wireless/ath/ath6kl/sdio.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index 346f5dd..e2f42a1 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -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;
--
1.7.1