Eric Lee / smarc-fsl-linux-kernel

29 Mar, 2013

1 commit

09 Sep, 2012

2 commits

  • 9f00d9776   netlink: hide struct module parameter in netlink_kernel_create ... Browse Code »

    This patch defines netlink_kernel_create as a wrapper function of
    __netlink_kernel_create to hide the struct module *me parameter
    (which seems to be THIS_MODULE in all existing netlink subsystems).

    Suggested by David S. Miller.

    Signed-off-by: Pablo Neira Ayuso
    Signed-off-by: David S. Miller

    Pablo Neira Ayuso
     
  • 9785e10ae   netlink: kill netlink_set_nonroot ... Browse Code »

    Replace netlink_set_nonroot by one new field `flags' in
    struct netlink_kernel_cfg that is passed to netlink_kernel_create.

    This patch also renames NL_NONROOT_* to NL_CFG_F_NONROOT_* since
    now the flags field in nl_table is generic (so we can add more
    flags if needed in the future).

    Also adjust all callers in the net-next tree to use these flags
    instead of netlink_set_nonroot.

    Signed-off-by: Pablo Neira Ayuso
    Signed-off-by: David S. Miller

    Pablo Neira Ayuso
     

30 Jun, 2012

1 commit

  • a31f2d17b   netlink: add netlink_kernel_cfg parameter to netlink_kernel_create ... Browse Code »

    This patch adds the following structure:

    struct netlink_kernel_cfg {
    unsigned int groups;
    void (*input)(struct sk_buff *skb);
    struct mutex *cb_mutex;
    };

    That can be passed to netlink_kernel_create to set optional configurations
    for netlink kernel sockets.

    I've populated this structure by looking for NULL and zero parameters at the
    existing code. The remaining parameters that always need to be set are still
    left in the original interface.

    That includes optional parameters for the netlink socket creation. This allows
    easy extensibility of this interface in the future.

    This patch also adapts all callers to use this new interface.

    Signed-off-by: Pablo Neira Ayuso
    Signed-off-by: David S. Miller

    Pablo Neira Ayuso
     

27 Jun, 2012

1 commit

01 Nov, 2011

1 commit

10 Sep, 2011

1 commit

06 May, 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
     

03 Mar, 2010

1 commit

21 Apr, 2008

1 commit

  • c544c028e   SELinux: netlink.c whitespace, syntax, and static declaraction cleanups ... Browse Code »

    This patch changes netlink.c to fix whitespace and syntax issues. Things that
    are fixed may include (does not not have to include)

    whitespace at end of lines
    spaces followed by tabs
    spaces used instead of tabs
    spacing around parenthesis
    locateion of { around struct and else clauses
    location of * in pointer declarations
    removal of initialization of static data to keep it in the right section
    useless {} in if statemetns
    useless checking for NULL before kfree
    fixing of the indentation depth of switch statements
    and any number of other things I forgot to mention

    Signed-off-by: Eric Paris
    Signed-off-by: James Morris

    Eric Paris
     

18 Apr, 2008

1 commit

11 Oct, 2007

1 commit

  • b4b510290   [NET]: Support multiple network namespaces with netlink ... Browse Code »

    Each netlink socket will live in exactly one network namespace,
    this includes the controlling kernel sockets.

    This patch updates all of the existing netlink protocols
    to only support the initial network namespace. Request
    by clients in other namespaces will get -ECONREFUSED.
    As they would if the kernel did not have the support for
    that netlink protocol compiled in.

    As each netlink protocol is updated to be multiple network
    namespace safe it can register multiple kernel sockets
    to acquire a presence in the rest of the network namespaces.

    The implementation in af_netlink is a simple filter implementation
    at hash table insertion and hash table look up time.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     

26 Apr, 2007

2 commits

  • af65bdfce   [NETLINK]: Switch cb_lock spinlock to mutex and allow to override it ... Browse Code »

    Switch cb_lock to mutex and allow netlink kernel users to override it
    with a subsystem specific mutex for consistent locking in dump callbacks.
    All netlink_dump_start users have been audited not to rely on any
    side-effects of the previously used spinlock.

    Signed-off-by: Patrick McHardy
    Signed-off-by: David S. Miller

    Patrick McHardy
     
  • 27a884dc3   [SK_BUFF]: Convert skb->tail to sk_buff_data_t ... Browse Code »

    So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
    on 64bit architectures, allowing us to combine the 4 bytes hole left by the
    layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
    64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
    :-)

    Many calculations that previously required that skb->{transport,network,
    mac}_header be first converted to a pointer now can be done directly, being
    meaningful as offsets or pointers.

    Signed-off-by: Arnaldo Carvalho de Melo
    Signed-off-by: David S. Miller

    Arnaldo Carvalho de Melo
     

30 Aug, 2005

4 commits

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds