1. 26 May, 2009 4 commits
    • Troy Kisky's avatar
    • Chaithrika U S's avatar
      davinci: use 32-bit accesses for low-level debug macros · 17eb1570
      Chaithrika U S authored
      This patch defines debug macros for low-level debugging for Davinci
      based platforms
      
      Tested on :
              - DM644x DaVinci EVM
              - DM646X DaVinciHD EVM
      	- DM355 EVM
      
      This patch attempts to solve the low-level debug issue in DM646x. The
      UART on DM646x SoC allows only 32-bit access. The existing
      debug-macro.S uses the macros from debug-8250.S file. This led to
      garbage serial out in the case of DM646x.
      
      The inclusion of debug-8250.S does not allow for run time fix for this
      issue.  There are compile time errors due to multiple definitions of
      the macros.  Also when building a single image for multiple DaVinci
      Platforms, the ifdefs cannot be relied upon.
      
      The solution below does not include the debug-8250.S file and defines
      the necessary macros. This solution was arrived at after observing
      that word access does not affect the low-level debug messages on
      DM644x/DM355.
      
      The other approach to this issue is to use the UART module information
      available in the peripheral registers to decide the access
      mechanism. But this will have to be done for every access of UART
      specifically for DM646x. Also this calls for a modification of the
      debug-8250.S file.
      Signed-off-by: default avatarChaithrika U S <chaithrika@ti.com>
      Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
      17eb1570
    • Kevin Hilman's avatar
      davinci: fixups for banked GPIO interrupt handling · dc756026
      Kevin Hilman authored
      This patch seems to get me much more reliable performance using the
      GPIO banked interrupts on dm355 for the dm9000 driver.
      
      Changes include:
      
      - init GPIO handling along with normal GPIO init
      - mask the level-sensitive bank IRQ during handling
      Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
      dc756026
    • David Brownell's avatar
      davinci: gpio irq enable tweaks · df4aab46
      David Brownell authored
      Fix two IRQ triggering bugs affecting GPIO IRQs:
      
       - Make sure enabling with IRQ_TYPE_NONE ("default, unspecified")
         isn't a NOP ... default to both edges, at least one must work.
      
       - As noted by Kevin Hilman, setting the irq trigger type for a
         banked gpio interrupt shouldn't enable irqs that are disabled.
      
      Since GPIO IRQs haven't been used much yet, it's not clear these
      bugs could have affected anything.  The few current users don't
      seem to have been obviously suffering from these issues.
      Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
      df4aab46
  2. 23 May, 2009 5 commits
    • Linus Torvalds's avatar
      Linux 2.6.30-rc7 · 59a3759d
      Linus Torvalds authored
      59a3759d
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 · 4a5dacec
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
        [SCSI] mpt2sas: fix driver version inconsistency
        [SCSI] 3w-xxxx: scsi_dma_unmap fix
        [SCSI] 3w-9xxx: scsi_dma_unmap fix
        [SCSI] ses: fix problems caused by empty SES provided name
        [SCSI] fc-transport: Close state transition-window during rport deletion.
        [SCSI] initialize max_target_blocked in scsi_alloc_target
        [SCSI] fnic: Add new Cisco PCI-Express FCoE HBA
      4a5dacec
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 · 3eb9c8be
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
        [CIFS] Avoid open on possible directories since Samba now rejects them
      3eb9c8be
    • Steve French's avatar
      [CIFS] Avoid open on possible directories since Samba now rejects them · 8db14ca1
      Steve French authored
      Small change (mostly formatting) to limit lookup based open calls to
      file create only.
      
      After discussion yesteday on samba-technical about the posix lookup
      regression,  and looking at a problem with cifs posix open to one
      particular Samba version, Jeff and JRA realized that Samba server's
      behavior changed in this area (posix open behavior on files vs.
      directories).   To make this behavior consistent, JRA just made a
      fix to Samba server to alter how it handles open of directories (now
      returning the equivalent of EISDIR instead of success). Since we don't
      know at lookup time whether the inode is a directory or file (and
      thus whether posix open will succeed with most current Samba server),
      this change avoids the posix open code on lookup open (just issues
      posix open on creates).    This gets the semantic benefits we want
      (atomicity, posix byte range locks, improved write semantics on newly
      created files) and file create still is fast, and we avoid the problem
      that Jeff noticed yesterday with "openat" (and some open directory
      calls) of non-cached directories to one version of Samba server, and
      will work with future Samba versions (which include the fix jra just
      pushed into Samba server).  I confirmed this approach with jra
      yesterday and with Shirish today.
      
      Posix open is only called (at lookup time) for file create now.
      For opens (rather than creates), because we do not know if it
      is a file or directory yet, and current Samba no longer allows
      us to do posix open on dirs, we could end up wasting an open call
      on what turns out to be a dir. For file opens, we wait to call posix
      open till cifs_open.  It could be added here (lookup) in the future
      but the performance tradeoff of the extra network request when EISDIR
      or EACCES is returned would have to be weighed against the 50%
      reduction in network traffic in the other paths.
      Reviewed-by: default avatarShirish Pargaonkar <shirishp@us.ibm.com>
      Tested-by: default avatarJeff Layton <jlayton@redhat.com>
      CC: Jeremy Allison <jra@samba.org>
      Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
      8db14ca1
    • Breno Leitao's avatar
      icom: fix rmmod crash · 95caa0a9
      Breno Leitao authored
      Actually the icom driver is crashing when is being removed because
      the driver is kfreeing the adapter structure before calling
      pci_release_regions(), which result in the following error:
      
        Unable to handle kernel paging request for data at address 0x6b6b6b6b6b6b6d33
        Faulting instruction address: 0xc000000000246b80
        Oops: Kernel access of bad area, sig: 11 [#1]
        ....
        [c000000012d436a0] [c0000000001002d0] .kfree+0x120/0x34c (unreliable)
        [c000000012d43730] [c000000000246d60] .pci_release_selected_regions+0x3c/0x68
        [c000000012d437c0] [d000000002d54700] .icom_kref_release+0xf4/0x118 [icom]
        [c000000012d43850] [c000000000232e50] .kref_put+0x74/0x94
        [c000000012d438d0] [d000000002d56c58] .icom_remove+0x40/0xa4 [icom]
        [c000000012d43960] [c000000000249e48] .pci_device_remove+0x50/0x90
        [c000000012d439e0] [c0000000002d68d8] .__device_release_driver+0x94/0xd4
        [c000000012d43a70] [c0000000002d7104] .driver_detach+0xf8/0x12c
        [c000000012d43b00] [c0000000002d549c] .bus_remove_driver+0xbc/0x11c
        [c000000012d43b90] [c0000000002d71dc] .driver_unregister+0x60/0x80
        [c000000012d43c20] [c00000000024a07c] .pci_unregister_driver+0x44/0xe8
        [c000000012d43cb0] [d000000002d56bf4] .icom_exit+0x1c/0x40 [icom]
        [c000000012d43d30] [c000000000095fa8] .SyS_delete_module+0x214/0x2a8
        [c000000012d43e30] [c00000000000852c] syscall_exit+0x0/0x40
      Signed-off-by: default avatarBreno Leitao <leitao@linux.vnet.ibm.com>
      Cc: stable@kernel.org
      Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      95caa0a9
  3. 22 May, 2009 25 commits
  4. 21 May, 2009 2 commits
  5. 20 May, 2009 4 commits