Eric Lee / smarc-fsl-linux-kernel

24 Nov, 2011

1 commit

  • ac8a48106   ipv4: Save nexthop address of LSRR/SSRR option to IPCB. ... Browse Code »
    45

    We can not update iph->daddr in ip_options_rcv_srr(), It is too early.
    When some exception ocurred later (eg. in ip_forward() when goto
    sr_failed) we need the ip header be identical to the original one as
    ICMP need it.

    Add a field 'nexthop' in struct ip_options to save nexthop of LSRR
    or SSRR option.

    Signed-off-by: Li Wei
    Signed-off-by: David S. Miller

    Li Wei
     

13 May, 2011

2 commits

11 Jun, 2010

1 commit

20 Apr, 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
     

25 Mar, 2010

1 commit

03 Jun, 2009

2 commits

  • adf30907d   net: skb->dst accessors ... Browse Code »

    Define three accessors to get/set dst attached to a skb

    struct dst_entry *skb_dst(const struct sk_buff *skb)

    void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)

    void skb_dst_drop(struct sk_buff *skb)
    This one should replace occurrences of :
    dst_release(skb->dst)
    skb->dst = NULL;

    Delete skb->dst field

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     
  • 511c3f92a   net: skb->rtable accessor ... Browse Code »

    Define skb_rtable(const struct sk_buff *skb) accessor to get rtable from skb

    Delete skb->rtable field

    Setting rtable is not allowed, just set dst instead as rtable is an alias.

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

29 Oct, 2008

1 commit

17 Jul, 2008

2 commits

20 Jun, 2008

1 commit

12 Jun, 2008

1 commit

03 Apr, 2008

1 commit

29 Mar, 2008

1 commit

06 Mar, 2008

1 commit

29 Jan, 2008

1 commit

  • 6e23ae2a4   [NETFILTER]: Introduce NF_INET_ hook values ... Browse Code »

    The IPv4 and IPv6 hook values are identical, yet some code tries to figure
    out the "correct" value by looking at the address family. Introduce NF_INET_*
    values for both IPv4 and IPv6. The old values are kept in a #ifndef __KERNEL__
    section for userspace compatibility.

    Signed-off-by: Patrick McHardy
    Acked-by: Herbert Xu
    Signed-off-by: David S. Miller

    Patrick McHardy
     

16 Oct, 2007

1 commit

  • 861d04860   [IPV4]: Uninline netfilter okfns ... Browse Code »

    Now that we don't pass double skb pointers to nf_hook_slow anymore, gcc
    can generate tail calls for some of the netfilter hook okfn invocations,
    so there is no need to inline the functions anymore. This caused huge
    code bloat since we ended up with one inlined version and one out-of-line
    version since we pass the address to nf_hook_slow.

    Before:
    text data bss dec hex filename
    8997385 1016524 524652 10538561 a0ce41 vmlinux

    After:
    text data bss dec hex filename
    8994009 1016524 524652 10535185 a0c111 vmlinux
    -------------------------------------------------------
    -3376

    All cases have been verified to generate tail-calls with and without
    netfilter. The okfns in ipmr and xfrm4_input still remain inline because
    gcc can't generate tail-calls for them.

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

    Patrick McHardy
     

11 Oct, 2007

1 commit

  • 3b26a9a65   [IPV4] IPSEC: Omit redirect for tunnelled packet. ... Browse Code »

    IPv4 IPsec tunnel gateway incorrectly sends redirect to
    sender if it is onlink host when network device the IPsec tunnelled
    packet is arrived is the same as the one the decapsulated packet
    is sent.

    With this patch, it omits to send the redirect when the forwarding
    skbuff carries secpath, since such skbuff should be assumed as
    a decapsulated packet from IPsec tunnel by own.

    Request for comments:
    Alternatively we'd have another way to change net/ipv4/route.c
    (__mkroute_input) to use RTCF_DOREDIRECT flag unless skbuff
    has no secpath. It is better than this patch at performance
    point of view because IPv4 redirect judgement is done at
    routing slow-path. However, it should be taken care of resource
    changes between SAD(XFRM states) and routing table. In other words,
    When IPv4 SAD is changed does the related routing entry go to its
    slow-path? If not, it is reasonable to apply this patch.

    Signed-off-by: Masahide NAKAMURA
    Signed-off-by: David S. Miller

    Masahide NAKAMURA
     

19 Jul, 2007

1 commit

26 Apr, 2007

3 commits

  • 35fc92a9d   [NET]: Allow forwarding of ip_summed except CHECKSUM_COMPLETE ... Browse Code »

    Right now Xen has a horrible hack that lets it forward packets with
    partial checksums. One of the reasons that CHECKSUM_PARTIAL and
    CHECKSUM_COMPLETE were added is so that we can get rid of this hack
    (where it creates two extra bits in the skbuff to essentially mirror
    ip_summed without being destroyed by the forwarding code).

    I had forgotten that I've already gone through all the deivce drivers
    last time around to make sure that they're looking at ip_summed ==
    CHECKSUM_PARTIAL rather than ip_summed != 0 on transmit. In any case,
    I've now done that again so it should definitely be safe.

    Unfortunately nobody has yet added any code to update CHECKSUM_COMPLETE
    values on forward so we I'm setting that to CHECKSUM_NONE. This should
    be safe to remove for bridging but I'd like to check that code path
    first.

    So here is the patch that lets us get rid of the hack by preserving
    ip_summed (mostly) on forwarded packets.

    Signed-off-by: Herbert Xu
    Signed-off-by: David S. Miller

    Herbert Xu
     
  • 9af3912ec   [NET] Move DF check to ip_forward ... Browse Code »

    Do fragmentation check in ip_forward, similar to ipv6 forwarding.

    Signed-off-by: John Heffner
    Signed-off-by: David S. Miller

    John Heffner
     
  • eddc9ec53   [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph ... Browse Code »

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

    Arnaldo Carvalho de Melo
     

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
     

11 Feb, 2007

1 commit

01 Jul, 2006

1 commit

13 Jun, 2006

1 commit

30 Aug, 2005

1 commit

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