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| author | Arun Kumar Neelakantam <aneela@codeaurora.org> | 2018-10-03 17:08:20 +0530 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-10-03 17:04:32 -0700 |
| commit | 928002a5e9dab2ddc1a0fe3e00739e89be30dc6b (patch) | |
| tree | 65ad096c69f31845d38a574a2f7b49b91fbbdf61 /drivers/rpmsg | |
| parent | 940c620d6af8fca7d115de40f19870fba415efac (diff) | |
| download | linux-928002a5e9dab2ddc1a0fe3e00739e89be30dc6b.tar.bz2 | |
rpmsg: glink: smem: Support rx peak for size less than 4 bytes
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.
Cc: stable@vger.kernel.org
Fixes: f0beb4ba9b18 ("rpmsg: glink: Remove chunk size word align warning")
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/rpmsg')
| -rw-r--r-- | drivers/rpmsg/qcom_glink_smem.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/rpmsg/qcom_glink_smem.c b/drivers/rpmsg/qcom_glink_smem.c index ab23da3d7131..64a5ce324c7f 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, |