diff options
| author | hayeswang <hayeswang@realtek.com> | 2015-07-24 13:54:25 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-27 00:56:39 -0700 |
| commit | 41cec84cf2858b59121a1cec5e9b09fc1bf1d882 (patch) | |
| tree | 633d458001b950f4133afef11e739e1f0bd8d056 /drivers/net/usb/r8152.c | |
| parent | 7daed8dc2a4b48c5a7ea5b3243d01837ec1aed0a (diff) | |
r8152: don't enable napi before rx ready
Adjust napi_disable() and napi_enable() to avoid r8152_poll() start
working before rx ready. Otherwise, it may have race condition for
rx_agg.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb/r8152.c')
| -rw-r--r-- | drivers/net/usb/r8152.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index d537c303dfd8..144dc641c239 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -2075,7 +2075,6 @@ static int rtl_start_rx(struct r8152 *tp) { int i, ret = 0; - napi_disable(&tp->napi); INIT_LIST_HEAD(&tp->rx_done); for (i = 0; i < RTL8152_MAX_RX; i++) { INIT_LIST_HEAD(&tp->rx_info[i].list); @@ -2083,7 +2082,6 @@ static int rtl_start_rx(struct r8152 *tp) if (ret) break; } - napi_enable(&tp->napi); if (ret && ++i < RTL8152_MAX_RX) { struct list_head rx_queue; @@ -2951,8 +2949,10 @@ static void set_carrier(struct r8152 *tp) if (!netif_carrier_ok(netdev)) { tp->rtl_ops.enable(tp); set_bit(RTL8152_SET_RX_MODE, &tp->flags); + napi_disable(&tp->napi); netif_carrier_on(netdev); rtl_start_rx(tp); + napi_enable(&tp->napi); } } else { if (netif_carrier_ok(netdev)) { @@ -3395,9 +3395,11 @@ static int rtl8152_resume(struct usb_interface *intf) if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) { rtl_runtime_suspend_enable(tp, false); clear_bit(SELECTIVE_SUSPEND, &tp->flags); + napi_disable(&tp->napi); set_bit(WORK_ENABLE, &tp->flags); if (netif_carrier_ok(tp->netdev)) rtl_start_rx(tp); + napi_enable(&tp->napi); } else { tp->rtl_ops.up(tp); rtl8152_set_speed(tp, AUTONEG_ENABLE, |