diff options
Diffstat (limited to 'drivers/rpmsg/qcom_glink_smem.c')
| -rw-r--r-- | drivers/rpmsg/qcom_glink_smem.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/rpmsg/qcom_glink_smem.c b/drivers/rpmsg/qcom_glink_smem.c index 5cdaa5f8fb61..892f2b92a4d8 100644 --- a/drivers/rpmsg/qcom_glink_smem.c +++ b/drivers/rpmsg/qcom_glink_smem.c @@ -29,8 +29,6 @@ #include <linux/workqueue.h> #include <linux/list.h> -#include <linux/delay.h> -#include <linux/rpmsg.h> #include <linux/rpmsg/qcom_glink.h> #include "qcom_glink_native.h" @@ -185,6 +183,9 @@ static void glink_smem_tx_write(struct qcom_glink_pipe *glink_pipe, if (head >= pipe->native.length) head -= pipe->native.length; + /* Ensure ordering of fifo and head update */ + wmb(); + *pipe->head = cpu_to_le32(head); } |