linux/drivers/net, branch v3.10-rc7

lseek(fd, n, SEEK_END) does not go to eof - n

2013-06-16T18:10:53Z

When you copy some code, you are supposed to read it. If nothing else, there's a chance to spot and fix an obvious bug instead of sharing it... X-Song: "I Got It From Agnes", by Tom Lehrer Signed-off-by: Al Viro [ Tom Lehrer? You're dating yourself, Al ] Signed-off-by: Linus Torvalds

tulip: Properly check dma mapping result

2013-06-14T00:09:40Z

Tulip throws an error when dma debugging is enabled, as it doesn't properly check dma mapping results with dma_mapping_error() durring tx ring refills. Easy fix, just add it in, and drop the frame if the mapping is bad Signed-off-by: Neil Horman CC: Grant Grundler CC: "David S. Miller" Reviewed-by: Grant Grundler Signed-off-by: David S. Miller

net: sh_eth: fix incorrect RX length error if R8A7740

2013-06-13T10:02:32Z

This patch fixes an issue that the driver increments the "RX length error" on every buffer in sh_eth_rx() if the R8A7740. This patch also adds a description about the Receive Frame Status bits. Signed-off-by: Yoshihiro Shimoda Signed-off-by: David S. Miller

drivers: net: davinci_mdio: restore mdio clk divider in mdio resume

2013-06-13T09:56:54Z

During suspend resume cycle all the register data is lost, so MDIO clock divier value gets reset. This patch restores the clock divider value. Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller

drivers: net: davinci_mdio: moving mdio resume earlier than cpsw ethernet driver

2013-06-13T09:56:54Z

MDIO driver should resume before CPSW ethernet driver so that CPSW connect to the phy and start tx/rx ethernet packets, changing the suspend/resume apis with suspend_late/resume_early. Signed-off-by: Mugunthan V N Signed-off-by: David S. Miller

tg3: Wait for boot code to finish after power on

2013-06-13T09:41:51Z

Some systems that don't need wake-on-lan may choose to power down the chip on system standby. Upon resume, the power on causes the boot code to startup and initialize the hardware. On one new platform, this is causing the device to go into a bad state due to a race between the driver and boot code, once every several hundred resumes. The same race exists on open since we come up from a power on. This patch adds a wait for boot code signature at the beginning of tg3_init_hw() which is common to both cases. If there has not been a power-off or the boot code has already completed, the signature will be present and poll_fw() returns immediately. Also return immediately if the device does not have firmware. Cc: stable@vger.kernel.org Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: David S. Miller

bonding: fix igmp_retrans type and two related races

2013-06-13T09:33:37Z

First the type of igmp_retrans (which is the actual counter of igmp_resend parameter) is changed to u8 to be able to store values up to 255 (as per documentation). There are two races that were hidden there and which are easy to trigger after the previous fix, the first is between bond_resend_igmp_join_requests and bond_change_active_slave where igmp_retrans is set and can be altered by the periodic. The second race condition is between multiple running instances of the periodic (upon execution it can be scheduled again for immediate execution which can cause the counter to go < 0 which in the unsigned case leads to unnecessary igmp retransmissions). Since in bond_change_active_slave bond->lock is held for reading and curr_slave_lock for writing, we use curr_slave_lock for mutual exclusion. We can't drop them as there're cases where RTNL is not held when bond_change_active_slave is called. RCU is unlocked in bond_resend_igmp_join_requests before getting curr_slave_lock since we don't need it there and it's pointless to delay. The decrement is moved inside the "if" block because if we decrement unconditionally there's still a possibility for a race condition although it is much more difficult to hit (many changes have to happen in a very short period in order to trigger) which in the case of 3 parallel running instances of this function and igmp_retrans == 1 (with check bond->igmp_retrans-- > 1) is: f1 passes, doesn't re-schedule, but decrements - igmp_retrans = 0 f2 then passes, doesn't re-schedule, but decrements - igmp_retrans = 255 f3 does the unnecessary retransmissions. Signed-off-by: Nikolay Aleksandrov Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller

bonding: reset master mac on first enslave failure

2013-06-13T09:33:37Z

If the bond device is supposed to get the first slave's MAC address and the first enslavement fails then we need to reset the master's MAC otherwise it will stay the same as the failed slave device. We do it after err_undo_flags since that is the first place where the MAC can be changed and we check if it should've been the first slave and if the bond's MAC was set to it because that err place is used by multiple locations prior to changing the master's MAC address. Signed-off-by: Nikolay Aleksandrov Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller

net: ethernet: stmicro: stmmac: Fix compile error when STMMAC_XMIT_DEBUG used

2013-06-13T08:30:16Z

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c: In function: stmmac_xmit drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:1902:74: error: expected ) before __func__ Signed-off-by: Dinh Nguyen Cc: Giuseppe Cavallaro CC: David S. Miller Signed-off-by: David S. Miller

be2net: Fix 32-bit DMA Mask handling

2013-06-13T08:28:36Z

Fix to set the coherent DMA mask only if dma_set_mask() succeeded, and to error out if either fails. Signed-off-by: Somnath Kotur Signed-off-by: David S. Miller