Eric Lee / smarc-fsl-linux-kernel

31 Mar, 2011

1 commit

24 Nov, 2010

1 commit

  • 5d61b718e   SCSI: arm fas216: fix missing ';' ... Browse Code »

    f281233 (SCSI host lock push-down) broke the fas216 build:

    drivers/scsi/arm/fas216.h: In function 'fas216_noqueue_command':
    drivers/scsi/arm/fas216.h:354: error: storage class specified for parameter 'fas216_intr'
    drivers/scsi/arm/fas216.h:356: error: storage class specified for parameter 'fas216_remove'
    ...

    Fix it.

    Signed-off-by: Russell King

    Russell King
     

17 Nov, 2010

1 commit

  • f281233d3   SCSI host lock push-down ... Browse Code »

    Move the mid-layer's ->queuecommand() invocation from being locked
    with the host lock to being unlocked to facilitate speeding up the
    critical path for drivers who don't need this lock taken anyway.

    The patch below presents a simple SCSI host lock push-down as an
    equivalent transformation. No locking or other behavior should change
    with this patch. All existing bugs and locking orders are preserved.

    Additionally, add one parameter to queuecommand,
    struct Scsi_Host *
    and remove one parameter from queuecommand,
    void (*done)(struct scsi_cmnd *)

    Scsi_Host* is a convenient pointer that most host drivers need anyway,
    and 'done' is redundant to struct scsi_cmnd->scsi_done.

    Minimal code disturbance was attempted with this change. Most drivers
    needed only two one-line modifications for their host lock push-down.

    Signed-off-by: Jeff Garzik
    Acked-by: James Bottomley
    Signed-off-by: Linus Torvalds

    Jeff Garzik
     

19 Feb, 2010

1 commit

29 Mar, 2009

1 commit

25 Mar, 2009

1 commit

12 Dec, 2008

1 commit

  • 5369bea7d   [ARM] dma: Use sensible DMA parameters for Acorn drivers ... Browse Code »

    The hardware supports transfers up to a page boundary per buffer.
    Currently, we work around that in the DMA code by splitting each
    buffer up as we run through the scatterlist. Avoid this by telling
    the block layers about the hardware restriction.

    Eventually, this will allow us to phase out the splitting code,
    but not until the old IDE layer allows us to control the value it
    gives to blk_queue_segment_boundary().

    Signed-off-by: Russell King

    Russell King
     

07 Aug, 2008

2 commits

27 Jul, 2008

1 commit

03 Jul, 2008

5 commits

08 Apr, 2008

1 commit

18 Feb, 2008

1 commit

12 Feb, 2008

1 commit

08 Feb, 2008

1 commit

31 Oct, 2007

1 commit

  • 01c0ad585   [ARM] Fix an rpc_defconfig regression ... Browse Code »

    Fix:

    CC drivers/scsi/arm/powertec.o
    In file included from drivers/scsi/arm/powertec.c:29:
    drivers/scsi/arm/scsi.h: In function 'next_SCp':
    drivers/scsi/arm/scsi.h:42: error: 'struct scatterlist' has no member named 'page'
    drivers/scsi/arm/scsi.h: In function 'init_SCp':
    drivers/scsi/arm/scsi.h:80: error: 'struct scatterlist' has no member named 'page'

    Signed-off-by: Russell King

    Russell King
     

01 Aug, 2007

1 commit

  • 99eb8a550   Remove the arm26 port ... Browse Code »

    The arm26 port has been in a state where it was far from even compiling
    for quite some time.

    Ian Molton agreed with the removal.

    Signed-off-by: Adrian Bunk
    Cc: Ian Molton
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

21 Jul, 2007

1 commit

12 May, 2007

2 commits

05 Mar, 2007

2 commits

18 Feb, 2007

1 commit

15 Feb, 2007

1 commit

  • cd354f1ae   [PATCH] remove many unneeded #includes of sched.h ... Browse Code »

    After Al Viro (finally) succeeded in removing the sched.h #include in module.h
    recently, it makes sense again to remove other superfluous sched.h includes.
    There are quite a lot of files which include it but don't actually need
    anything defined in there. Presumably these includes were once needed for
    macros that used to live in sched.h, but moved to other header files in the
    course of cleaning it up.

    To ease the pain, this time I did not fiddle with any header files and only
    removed #includes from .c-files, which tend to cause less trouble.

    Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
    arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
    allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
    configs in arch/arm/configs on arm. I also checked that no new warnings were
    introduced by the patch (actually, some warnings are removed that were emitted
    by unnecessarily included header files).

    Signed-off-by: Tim Schmielau
    Acked-by: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tim Schmielau
     

05 Oct, 2006

2 commits

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     
  • 97d41e90f   Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 ... Browse Code »

    * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (54 commits)
    [SCSI] Initial Commit of qla4xxx
    [SCSI] raid class: handle component-add errors
    [SCSI] SCSI megaraid_sas: handle thrown errors
    [SCSI] SCSI aic94xx: handle sysfs errors
    [SCSI] SCSI st: fix error handling in module init, sysfs
    [SCSI] SCSI sd: fix module init/exit error handling
    [SCSI] SCSI osst: add error handling to module init, sysfs
    [SCSI] scsi: remove hosts.h
    [SCSI] scsi: Scsi_Cmnd convertion in aic7xxx_old.c
    [SCSI] megaraid_sas: sets ioctl timeout and updates version,changelog
    [SCSI] megaraid_sas: adds tasklet for cmd completion
    [SCSI] megaraid_sas: prints pending cmds before setting hw_crit_error
    [SCSI] megaraid_sas: function pointer for disable interrupt
    [SCSI] megaraid_sas: frame count optimization
    [SCSI] megaraid_sas: FW transition and q size changes
    [SCSI] qla2xxx: Update version number to 8.01.07-k2.
    [SCSI] qla2xxx: Stall mid-layer error handlers while rport is blocked.
    [SCSI] qla2xxx: Add MODULE_FIRMWARE tags.
    [SCSI] qla2xxx: Add support for host port state FC transport attribute.
    [SCSI] qla2xxx: Add support for fabric name FC transport attribute.
    ...

    Linus Torvalds
     

04 Oct, 2006

2 commits

07 Aug, 2006

2 commits

26 Jul, 2006

1 commit

  • 64821324c   [PATCH] fix compile regression for a few scsi drivers ... Browse Code »

    This fixes three drivers to compile again after my patch that removes
    the data_cmnd member from struct scsi_cmnd.

    The fas216 change is trivial, it should have been using ->cmnd all the
    time.

    NCR53C9 (which seem to be mostly duplicate driver with esp.c!) is doing
    something odd, it should only have looked at ->cmnd before not the saved
    copy that is kept for the error handlers sake. Note that it really
    should deal with the sync setting themselves but use the generic domain
    validation code that get this right - but that's for later let's push
    this simple compile fix for now.

    And sorry for the late fix for this, I have been busy with OLS and
    associated activities last week.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     

03 Jul, 2006

1 commit

01 Jul, 2006

1 commit

23 Jun, 2006

1 commit

26 Mar, 2006

1 commit

  • 8d3b33f67   [PATCH] Remove MODULE_PARM ... Browse Code »

    MODULE_PARM was actually breaking: recent gcc version optimize them out as
    unused. It's time to replace the last users, which are generally in the
    most unloved drivers anyway.

    Signed-off-by: Rusty Russell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rusty Russell
     

09 Jan, 2006

1 commit