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  1. 29 10月, 2009 1 次提交
  3. 23 10月, 2009 1 次提交
    • X
      isdn: fix possible circular locking dependency · 2bd9af04
      由 Xiaotian Feng 提交于 
      There's a circular locking dependency:

---> isdn_net_get_locked_lp
    --->lock &nd->queue_lock
    --->lock &nd->queue->xmit_lock
    .....................
    ---->unlock &nd->queue_lock

---> isdn_net_writebuf_skb (called with &nd->queue->xmit_lock locked)
    ---->isdn_net_inc_frame_cnt
         ---->isdn_net_device_busy
              ----> lock &nd->queue_lock

This will trigger lockdep warnings:

 =======================================================
 [ INFO: possible circular locking dependency detected ]
 2.6.32-rc4-testing #7
 -------------------------------------------------------
 ipppd/28379 is trying to acquire lock:
 (&netdev->queue_lock){......}, at: [<e62ad0fd>] isdn_net_device_busy+0x2c/0x74 [isdn]

 but task is already holding lock:
 (&netdev->local->xmit_lock){+.....}, at: [<e62aefc2>] isdn_net_write_super+0x3f/0x6e [isdn]

 which lock already depends on the new lock.
 .......

 We don't need to lock nd->queue->xmit_lock to protect single
isdn_net_lp_busy(). This can fix above lockdep warnings.
Reported-and-tested-by: NTilman Schmidt <tilman@imap.cc>
Signed-off-by: NXiaotian Feng <xtfeng@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      2bd9af04
  5. 07 10月, 2009 15 次提交
  7. 05 10月, 2009 1 次提交
  9. 01 10月, 2009 1 次提交
  11. 29 9月, 2009 1 次提交
    • R
      isdn: fix netjet/isdnhdlc build errors · 8823ad31
      由 Randy Dunlap 提交于 
      Commit cb3824ba didn't fix this problem.

Fix build errors in netjet, using isdnhdlc module:

drivers/built-in.o: In function `mode_tiger':
netjet.c:(.text+0x1ca0c7): undefined reference to `isdnhdlc_rcv_init'
netjet.c:(.text+0x1ca0d4): undefined reference to `isdnhdlc_out_init'
drivers/built-in.o: In function `fill_dma':
netjet.c:(.text+0x1ca2bd): undefined reference to `isdnhdlc_encode'
drivers/built-in.o: In function `read_dma':
netjet.c:(.text+0x1ca614): undefined reference to `isdnhdlc_decode'
drivers/built-in.o: In function `nj_irq':
netjet.c:(.text+0x1cb07a): undefined reference to `isdnhdlc_encode'

drivers/built-in.o: In function `isdnhdlc_decode':
(.text+0x1c2088): undefined reference to `crc_ccitt_table'
drivers/built-in.o: In function `isdnhdlc_encode':
(.text+0x1c2339): undefined reference to `crc_ccitt_table'
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8823ad31
  13. 23 9月, 2009 1 次提交
  15. 22 9月, 2009 1 次提交
  17. 21 9月, 2009 2 次提交
  19. 20 9月, 2009 1 次提交
  21. 01 9月, 2009 1 次提交
  23. 03 8月, 2009 2 次提交
  25. 29 7月, 2009 1 次提交
  27. 27 7月, 2009 2 次提交
  29. 26 7月, 2009 9 次提交