diff options
| author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2014-11-04 17:08:07 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-05 22:22:56 +0100 |
| commit | b9d73704aab92602fcadff26f61462a6445bd0cf (patch) | |
| tree | c4fdce909bf102ee486064d2e07199f17a419184 /drivers | |
| parent | stmmac: release tx lock, in case of dma mapping error. (diff) | |
| download | linux-b9d73704aab92602fcadff26f61462a6445bd0cf.tar.xz linux-b9d73704aab92602fcadff26f61462a6445bd0cf.zip | |
stmmac: fix lock in stmmac_set_rx_mode
When compile with CONFIG_PROVE_LOCKING the following warnings happen:
[snip]
HARDIRQ-ON-W at:
[<c0480c1c>] _raw_spin_lock+0x3c/0x4c
[<c02c2828>] stmmac_set_rx_mode+0x18/0x3c
[<c038b2cc>] dev_set_rx_mode+0x1c/0x28
[<c038b38c>] __dev_open+0xb4/0xf8
[<c038b5a8>] __dev_change_flags+0x94/0x128
[<c038b6a8>] dev_change_flags+0x10/0x48
[<c062afe0>] ip_auto_config+0x1d4/0x1084
[<c000873c>] do_one_initcall+0x108/0x15c
[<c060ec50>] kernel_init_freeable+0x1a8/0x248
[<c0472cc0>] kernel_init+0x8/0x160
[<c000dfc8>] ret_from_fork+0x14/0x2c
INITIAL USE at:
[<c0480c1c>] _raw_spin_lock+0x3c/0x4c
[<c02c2828>] stmmac_set_rx_mode+0x18/0x3c
[<c038b2cc>] dev_set_rx_mode+0x1c/0x28
[<c038b38c>] __dev_open+0xb4/0xf8
[<c038b5a8>] __dev_change_flags+0x94/0x128
[<c038b6a8>] dev_change_flags+0x10/0x48
[<c062afe0>] ip_auto_config+0x1d4/0x1084
[<c000873c>] do_one_initcall+0x108/0x15c
[<c060ec50>] kernel_init_freeable+0x1a8/0x248
[<c0472cc0>] kernel_init+0x8/0x160
[<c000dfc8>] ret_from_fork+0x14/0x2c
so the patch just removes the lock protection in the stmmac_set_rx_mode
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Emilio Lopez <emilio@elopez.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index ee07e7eee647..27598738c9cd 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2283,9 +2283,7 @@ static void stmmac_set_rx_mode(struct net_device *dev) { struct stmmac_priv *priv = netdev_priv(dev); - spin_lock(&priv->lock); priv->hw->mac->set_filter(priv->hw, dev); - spin_unlock(&priv->lock); } /** |