Eric Lee / smarc-fsl-linux-kernel

24 Sep, 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
     

12 Nov, 2009

1 commit

  • f8572d8f2   sysctl net: Remove unused binary sysctl code ... Browse Code »

    Now that sys_sysctl is a compatiblity wrapper around /proc/sys
    all sysctl strategy routines, and all ctl_name and strategy
    entries in the sysctl tables are unused, and can be
    revmoed.

    In addition neigh_sysctl_register has been modified to no longer
    take a strategy argument and it's callers have been modified not
    to pass one.

    Cc: "David Miller"
    Cc: Hideaki YOSHIFUJI
    Cc: netdev@vger.kernel.org
    Signed-off-by: Eric W. Biederman

    Eric W. Biederman
     

11 Apr, 2009

1 commit

05 Mar, 2009

1 commit

04 Mar, 2009

1 commit

  • 422247451   net: fix tokenring license ... Browse Code »

    Currently, modular tokenring ("tr") lacks a license and fails to load:

    tr: module license 'unspecified' taints kernel.
    tr: Unknown symbol proc_net_fops_create

    Beacuse of this, no tokenring driver can load if it depends on modular
    tr. Fix this by adding GPL module license as it is in the kernel.

    With this fix, tr module loads fine and tms380 driver also loads. Well,
    it does'nt work but that's a different bug.

    Signed-off-by: Meelis Roos
    Signed-off-by: David S. Miller

    Meelis Roos
     

27 Feb, 2009

1 commit

  • 81c553299   net/802: fix sparse warnings: context imbalance ... Browse Code »

    Impact: Attribute function with __acquires(...) resp. __releases(...).

    Fix this sparse warnings:
    net/802/tr.c:492:21: warning: context imbalance in 'rif_seq_start' - wrong count at exit
    net/802/tr.c:519:13: warning: context imbalance in 'rif_seq_stop' - unexpected unlock

    Signed-off-by: Hannes Eder
    Signed-off-by: David S. Miller

    Hannes Eder
     

04 Nov, 2008

1 commit

  • 6d9f239a1   net: '&' redux ... Browse Code »

    I want to compile out proc_* and sysctl_* handlers totally and
    stub them to NULL depending on config options, however usage of &
    will prevent this, since taking adress of NULL pointer will break
    compilation.

    So, drop & in front of every ->proc_handler and every ->strategy
    handler, it was never needed in fact.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: David S. Miller

    Alexey Dobriyan
     

28 Oct, 2008

1 commit

  • e174961ca   net: convert print_mac to %pM ... Browse Code »

    This converts pretty much everything to print_mac. There were
    a few things that had conflicts which I have just dropped for
    now, no harm done.

    I've built an allyesconfig with this and looked at the files
    that weren't built very carefully, but it's a huge patch.

    Signed-off-by: Johannes Berg
    Signed-off-by: David S. Miller

    Johannes Berg
     

01 Feb, 2008

1 commit

29 Jan, 2008

2 commits

  • 36f0bebd9   [TR]: Use ctl paths to register net/token-ring/ table ... Browse Code »

    The same thing for token-ring - use ctl paths and get
    rid of external references on the tr_table.

    Unfortunately, I couldn't split this patch into cleanup and
    use-the-paths parts.

    As a lame excuse I can say, that the cleanup is just moving
    the tr_table from one file to another - closet to a single
    variable, that this ctl table tunes. Since the source file
    becomes empty after the move, I remove it.

    Signed-off-by: Pavel Emelyanov
    Signed-off-by: David S. Miller

    Pavel Emelyanov
     
  • b24b8a247   [NET]: Convert init_timer into setup_timer ... Browse Code »

    Many-many code in the kernel initialized the timer->function
    and timer->data together with calling init_timer(timer). There
    is already a helper for this. Use it for networking code.

    The patch is HUGE, but makes the code 130 lines shorter
    (98 insertions(+), 228 deletions(-)).

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

    Pavel Emelyanov
     

14 Jan, 2008

1 commit

11 Oct, 2007

4 commits

  • 3b04ddde0   [NET]: Move hardware header operations out of netdevice. ... Browse Code »

    Since hardware header operations are part of the protocol class
    not the device instance, make them into a separate object and
    save memory.

    Signed-off-by: Stephen Hemminger
    Signed-off-by: David S. Miller

    Stephen Hemminger
     
  • 0795af572   [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF() ... Browse Code »

    This is nicer than the MAC_FMT stuff.

    Signed-off-by: Joe Perches
    Signed-off-by: David S. Miller

    Joe Perches
     
  • 881d966b4   [NET]: Make the device list and device lookups per namespace. ... Browse Code »

    This patch makes most of the generic device layer network
    namespace safe. This patch makes dev_base_head a
    network namespace variable, and then it picks up
    a few associated variables. The functions:
    dev_getbyhwaddr
    dev_getfirsthwbytype
    dev_get_by_flags
    dev_get_by_name
    __dev_get_by_name
    dev_get_by_index
    __dev_get_by_index
    dev_ioctl
    dev_ethtool
    dev_load
    wireless_process_ioctl

    were modified to take a network namespace argument, and
    deal with it.

    vlan_ioctl_set and brioctl_set were modified so their
    hooks will receive a network namespace argument.

    So basically anthing in the core of the network stack that was
    affected to by the change of dev_base was modified to handle
    multiple network namespaces. The rest of the network stack was
    simply modified to explicitly use &init_net the initial network
    namespace. This can be fixed when those components of the network
    stack are modified to handle multiple network namespaces.

    For now the ifindex generator is left global.

    Fundametally ifindex numbers are per namespace, or else
    we will have corner case problems with migration when
    we get that far.

    At the same time there are assumptions in the network stack
    that the ifindex of a network device won't change. Making
    the ifindex number global seems a good compromise until
    the network stack can cope with ifindex changes when
    you change namespaces, and the like.

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

    Eric W. Biederman
     
  • 457c4cbc5   [NET]: Make /proc/net per network namespace ... Browse Code »

    This patch makes /proc/net per network namespace. It modifies the global
    variables proc_net and proc_net_stat to be per network namespace.
    The proc_net file helpers are modified to take a network namespace argument,
    and all of their callers are fixed to pass &init_net for that argument.
    This ensures that all of the /proc/net files are only visible and
    usable in the initial network namespace until the code behind them
    has been updated to be handle multiple network namespaces.

    Making /proc/net per namespace is necessary as at least some files
    in /proc/net depend upon the set of network devices which is per
    network namespace, and even more files in /proc/net have contents
    that are relevant to a single network namespace.

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

    Eric W. Biederman
     

11 Jul, 2007

1 commit

26 Apr, 2007

4 commits

13 Feb, 2007

1 commit

  • 9a32144e9   [PATCH] mark struct file_operations const 7 ... Browse Code »

    Many struct file_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

11 Feb, 2007

1 commit

29 Sep, 2006

1 commit

01 Jul, 2006

1 commit

17 May, 2006

1 commit

26 Oct, 2005

1 commit

22 Sep, 2005

1 commit

19 Aug, 2005

1 commit

  • 001dd250c   [TOKENRING]: Use interrupt-safe locking with rif_lock. ... Browse Code »

    Change operations on rif_lock from spin_{un}lock_bh to
    spin_{un}lock_irq{save,restore} equivalents. Some of the
    rif_lock critical sections are called from interrupt context via
    tr_type_trans->tr_add_rif_info. The TR NIC drivers call tr_type_trans
    from their packet receive handlers.

    Signed-off-by: Jay Vosburgh
    Signed-off-by: John W. Linville
    Signed-off-by: David S. Miller

    Jay Vosburgh
     

27 May, 2005

2 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