diff options
| author |   Jesse Brandeburg <jesse.brandeburg@intel.com> | 2008-10-02 16:33:30 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-02 18:28:12 -0700 |
| commit | 23033fad5be0a2c7838cb9e1579919b64af713f6 (patch) | |
| tree | cca0e10a7f6c26c20fd2c4d97d7bde911a1b1300 /drivers/net/e1000e/ethtool.c | |
| parent | e1000e: do not ever sleep in interrupt context (diff) | |
| download | linux-dev-23033fad5be0a2c7838cb9e1579919b64af713f6.tar.xz linux-dev-23033fad5be0a2c7838cb9e1579919b64af713f6.zip | |
e1000e: remove phy read from inside spinlock
thanks to tglx, we're finding some interesting reentrancy issues.
this patch removes the phy read from inside a spinlock, paving
the way for removing the spinlock completely. The phy read was
only feeding a statistic that wasn't used.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/net/e1000e/ethtool.c')
| -rw-r--r-- | drivers/net/e1000e/ethtool.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 5ed8e13d5fed..33a3ff17b5d0 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -432,6 +432,10 @@ static void e1000_get_regs(struct net_device *netdev, regs_buff[11] = er32(TIDV); regs_buff[12] = adapter->hw.phy.type; /* PHY type (IGP=1, M88=0) */ + + /* ethtool doesn't use anything past this point, so all this + * code is likely legacy junk for apps that may or may not + * exist */ if (hw->phy.type == e1000_phy_m88) { e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); regs_buff[13] = (u32)phy_data; /* cable length */ @@ -447,7 +451,7 @@ static void e1000_get_regs(struct net_device *netdev, regs_buff[22] = adapter->phy_stats.receive_errors; regs_buff[23] = regs_buff[13]; /* mdix mode */ } - regs_buff[21] = adapter->phy_stats.idle_errors; /* phy idle errors */ + regs_buff[21] = 0; /* was idle_errors */ e1e_rphy(hw, PHY_1000T_STATUS, &phy_data); regs_buff[24] = (u32)phy_data; /* phy local receiver status */ regs_buff[25] = regs_buff[24]; /* phy remote receiver status */ |