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Subject[PATCH] rpmsg: glink: smem: Support rx peak for size less than 4 bytes
Date
The current rx peak function fails to read the data if size is
less than 4bytes.

Use memcpy_fromio to support data reads of size less than 4 bytes.

Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
---
drivers/rpmsg/qcom_glink_smem.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/rpmsg/qcom_glink_smem.c b/drivers/rpmsg/qcom_glink_smem.c
index 2b5cf27..7b65443 100644
--- a/drivers/rpmsg/qcom_glink_smem.c
+++ b/drivers/rpmsg/qcom_glink_smem.c
@@ -89,15 +89,11 @@ static void glink_smem_rx_peak(struct qcom_glink_pipe *np,
tail -= pipe->native.length;

len = min_t(size_t, count, pipe->native.length - tail);
- if (len) {
- __ioread32_copy(data, pipe->fifo + tail,
- len / sizeof(u32));
- }
+ if (len)
+ memcpy_fromio(data, pipe->fifo + tail, len);

- if (len != count) {
- __ioread32_copy(data + len, pipe->fifo,
- (count - len) / sizeof(u32));
- }
+ if (len != count)
+ memcpy_fromio(data + len, pipe->fifo, (count - len));
}

static void glink_smem_rx_advance(struct qcom_glink_pipe *np,
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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