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authorMathieu Poirier <mathieu.poirier@linaro.org>2017-08-02 19:21:56 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-28 17:05:47 +0300
commit4f871a9f0f6fbb8ab023cca1f0099bf152a5d618 (patch)
tree122e097cf0df7d115932ade3fd70064b351827a4 /drivers/hwtracing
parentcfd9f6306f105977bbe8ff793c4a4bc7a912f040 (diff)
downloadlinux-4f871a9f0f6fbb8ab023cca1f0099bf152a5d618.tar.xz
coresight: etb10: Remove useless conversion to LE
Internal CoreSight components are rendering trace data in little-endian format. As such there is no need to convert the data once more, hence removing the extra step. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing')
-rw-r--r--drivers/hwtracing/coresight/coresight-etb10.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etb10.c b/drivers/hwtracing/coresight/coresight-etb10.c
index d9c233135d6d..50f4846e6271 100644
--- a/drivers/hwtracing/coresight/coresight-etb10.c
+++ b/drivers/hwtracing/coresight/coresight-etb10.c
@@ -233,10 +233,8 @@ static void etb_dump_hw(struct etb_drvdata *drvdata)
for (i = 0; i < depth; i++) {
read_data = readl_relaxed(drvdata->base +
ETB_RAM_READ_DATA_REG);
- *buf_ptr++ = read_data >> 0;
- *buf_ptr++ = read_data >> 8;
- *buf_ptr++ = read_data >> 16;
- *buf_ptr++ = read_data >> 24;
+ *(u32 *)buf_ptr = read_data;
+ buf_ptr += 4;
}
if (frame_off) {
@@ -444,10 +442,8 @@ static void etb_update_buffer(struct coresight_device *csdev,
buf_ptr = buf->data_pages[cur] + offset;
read_data = readl_relaxed(drvdata->base +
ETB_RAM_READ_DATA_REG);
- *buf_ptr++ = read_data >> 0;
- *buf_ptr++ = read_data >> 8;
- *buf_ptr++ = read_data >> 16;
- *buf_ptr++ = read_data >> 24;
+ *(u32 *)buf_ptr = read_data;
+ buf_ptr += 4;
offset += 4;
if (offset >= PAGE_SIZE) {