Eric Lee / smarc-fsl-linux-kernel

12 Jan, 2012

1 commit

  • 7b67e7514   Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci ... Browse Code »

    * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits)
    x86/PCI: Expand the x86_msi_ops to have a restore MSIs.
    PCI: Increase resource array mask bit size in pcim_iomap_regions()
    PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES
    PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT)
    PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
    x86/PCI: amd: factor out MMCONFIG discovery
    PCI: Enable ATS at the device state restore
    PCI: msi: fix imbalanced refcount of msi irq sysfs objects
    PCI: kconfig: English typo in pci/pcie/Kconfig
    PCI/PM/Runtime: make PCI traces quieter
    PCI: remove pci_create_bus()
    xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources
    x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus()
    x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented()
    x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan
    sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources
    sparc/PCI: convert to pci_create_root_bus()
    sh/PCI: convert to pci_scan_root_bus() for correct root bus resources
    powerpc/PCI: convert to pci_create_root_bus()
    powerpc/PCI: split PHB part out of pcibios_map_io_space()
    ...

    Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due
    to the same patches being applied in other branches.

    Linus Torvalds
     

07 Jan, 2012

1 commit

16 Nov, 2011

2 commits

  • 72f8c0bfa   lib: devres: add convenience function to remap a resource ... Browse Code »

    Almost every platform_driver does the three steps get_resource,
    request_mem_region, ioremap. This does not only lead to a lot of code
    duplication, but also a huge number of similar error strings and
    inconsistent error codes on failure. So, introduce a helper function
    which simplifies remapping a resource and make it hard to do something
    wrong and add documentation for it.

    Signed-off-by: Wolfram Sang
    Acked-by: Grant Likely
    Acked-by: Tejun Heo
    Signed-off-by: Greg Kroah-Hartman

    Wolfram Sang
     
  • 571806a9f   lib: devres: add annotations for #endif ... Browse Code »

    While working on devres, I found those make navigating the code a tad
    easier.

    Signed-off-by: Wolfram Sang
    Acked-by: Grant Likely
    Signed-off-by: Greg Kroah-Hartman

    Wolfram Sang
     

26 Jul, 2011

1 commit

  • ae891a1b9   devres: fix possible use after free ... Browse Code »

    devres uses the pointer value as key after it's freed, which is safe but
    triggers spurious use-after-free warnings on some static analysis tools.
    Rearrange code to avoid such warnings.

    Signed-off-by: Maxin B. John
    Reviewed-by: Rolf Eike Beer
    Acked-by: Tejun Heo
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maxin B John
     

12 Jul, 2010

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

05 May, 2008

1 commit

  • b41e5fffe   [POWERPC] devres: Add devm_ioremap_prot() ... Browse Code »

    We provide an ioremap_flags, so this provides a corresponding
    devm_ioremap_prot. The slight name difference is at Ben
    Herrenschmidt's request as he plans on changing ioremap_flags to
    ioremap_prot in the future.

    Signed-off-by: Emil Medve
    Signed-off-by: Kumar Gala
    Acked-by: Tejun Heo
    Cc: Benjamin Herrenschmidt
    Signed-off-by: Andrew Morton
    Signed-off-by: Paul Mackerras

    Emil Medve
     

01 May, 2008

1 commit

17 Mar, 2008

1 commit

  • 916fbfb7a   devres: implement pcim_iomap_regions_request_all() ... Browse Code »

    Some drivers need to reserve all PCI BARs to prevent other drivers
    misusing unoccupied BARs. pcim_iomap_regions_request_all() requests
    all BARs and iomap specified BARs.

    Signed-off-by: Tejun Heo
    Cc: Greg Kroah-Hartman
    Cc: Alan Cox
    Cc: Jeff Garzik
    Signed-off-by: Jeff Garzik

    Tejun Heo
     

29 Apr, 2007

1 commit

17 Feb, 2007

1 commit

  • fb4d64e78   [PATCH] pci_iomap_regions() error handling fix ... Browse Code »

    It appears that the pcim_iomap_regions() function doesn't get the error
    handling right. It BUGs early at boot with a backtrace along the lines of:

    ahci_init
    pci_register_driver
    driver_register
    [...]
    ahci_init_one
    pcim_iomap_region
    pcim_iounmap

    The following patch allows me to boot. Only the if(mask..) continue;
    part fixes the problem actually, the gotos where changed so that we
    don't try to unmap something we couldn't map anyway.

    Signed-off-by: Frederik Deweerdt
    Cc: Al Viro
    Cc: Tejun Heo
    Cc: Jeff Garzik
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Frederik Deweerdt
     

12 Feb, 2007

1 commit

  • 5ea817699   [PATCH] sort the devres mess out ... Browse Code »

    * Split the implementation-agnostic stuff in separate files.
    * Make sure that targets using non-default request_irq() pull
    kernel/irq/devres.o
    * Introduce new symbols (HAS_IOPORT and HAS_IOMEM) defaulting to positive;
    allow architectures to turn them off (we needed these symbols anyway for
    dependencies of quite a few drivers).
    * protect the ioport-related parts of lib/devres.o with CONFIG_HAS_IOPORT.

    Signed-off-by: Al Viro
    Signed-off-by: Linus Torvalds

    Al Viro