| Message ID | 1463426615-15523-3-git-send-email-qca_merez@qca.qualcomm.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | d759b9a03a0137c83d7419b37b5d85b247785214 |
| Delegated to: | Kalle Valo |
| Headers | show |
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index fa6ea24..3909af1 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -544,6 +544,12 @@ static int wil_rx_refill(struct wil6210_priv *wil, int count) break; } } + + /* make sure all writes to descriptors (shared memory) are done before + * committing them to HW + */ + wmb(); + wil_w(wil, v->hwtail, v->swtail); return rc;
add memory barrier after allocating new rx descriptors, before updating the hwtail. This will guarantee that all writes to descriptors (shared memory) are done before committing them to HW. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> --- drivers/net/wireless/ath/wil6210/txrx.c | 6 ++++++ 1 file changed, 6 insertions(+)