diff options
| author |   Mike McCormack <mikem@ring3k.org> | 2011-05-31 08:50:07 +0900 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2011-06-03 15:01:06 -0400 |
| commit | 71352b2318675cf6a3f54c02a33d91ac17af1626 (patch) | |
| tree | 648ee093ffd42c466e276859c7381629ee72c89a | |
| parent | rtlwifi: Assign rx buffer ownership to hardware last (diff) | |
rtlwifi: Use write barrier when assigning ownership
Make sure all updates to a descriptor are flushed to memory
before assigning ownship to hardware.
Signed-off-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/rtlwifi/rtl8192ce/trx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c index ac95dc44374d..2492cc234c03 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c @@ -930,6 +930,7 @@ void rtl92ce_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val) if (istx == true) { switch (desc_name) { case HW_DESC_OWN: + wmb(); SET_TX_DESC_OWN(pdesc, 1); break; case HW_DESC_TX_NEXTDESC_ADDR: @@ -943,6 +944,7 @@ void rtl92ce_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val) } else { switch (desc_name) { case HW_DESC_RXOWN: + wmb(); SET_RX_DESC_OWN(pdesc, 1); break; case HW_DESC_RXBUFF_ADDR: |