Eric Lee / smarc-fsl-linux-kernel

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

10 Jun, 2016

1 commit

  • 719c44d34   packet: compat support for sock_fprog ... Browse Code »

    Socket option PACKET_FANOUT_DATA takes a struct sock_fprog as argument
    if PACKET_FANOUT has mode PACKET_FANOUT_CBPF. This structure contains
    a pointer into user memory. If userland is 32-bit and kernel is 64-bit
    the two disagree about the layout of struct sock_fprog.

    Add compat setsockopt support to convert a 32-bit compat_sock_fprog to
    a 64-bit sock_fprog. This is analogous to compat_sock_fprog support for
    SO_REUSEPORT added in commit 1957598840f4 ("soreuseport: add compat
    case for setsockopt SO_ATTACH_REUSEPORT_CBPF").

    Reported-by: Daniel Borkmann
    Signed-off-by: Willem de Bruijn
    Acked-by: Daniel Borkmann
    Signed-off-by: David S. Miller

    Willem de Bruijn
     

09 Apr, 2015

1 commit

20 Nov, 2014

1 commit

21 Sep, 2013

1 commit

  • e8d895a4b   compat.h: Remove extern from function prototypes ... Browse Code »

    There are a mix of function prototypes with and without extern
    in the kernel sources. Standardize on not using extern for
    function prototypes.

    Function prototypes don't need to be written with extern.
    extern is assumed by the compiler. Its use is as unnecessary as
    using auto to declare automatic/local variables in a block.

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

    Joe Perches
     

16 Apr, 2012

1 commit

12 Mar, 2012

1 commit

  • 43db362d3   net: get rid of some pointless casts to sockaddr ... Browse Code »

    The following 4 functions:
    move_addr_to_kernel
    move_addr_to_user
    verify_iovec
    verify_compat_iovec
    are always effectively called with a sockaddr_storage.

    Make this explicit by changing their signature.

    This removes a large number of casts from sockaddr_storage to sockaddr.

    Signed-off-by: Maciej Żenczykowski
    Signed-off-by: David S. Miller

    Maciej Żenczykowski
     

06 May, 2011

1 commit

  • 228e548e6   net: Add sendmmsg socket system call ... Browse Code »
    1

    This patch adds a multiple message send syscall and is the send
    version of the existing recvmmsg syscall. This is heavily
    based on the patch by Arnaldo that added recvmmsg.

    I wrote a microbenchmark to test the performance gains of using
    this new syscall:

    http://ozlabs.org/~anton/junkcode/sendmmsg_test.c

    The test was run on a ppc64 box with a 10 Gbit network card. The
    benchmark can send both UDP and RAW ethernet packets.

    64B UDP

    batch pkts/sec
    1 804570
    2 872800 (+ 8 %)
    4 916556 (+14 %)
    8 939712 (+17 %)
    16 952688 (+18 %)
    32 956448 (+19 %)
    64 964800 (+20 %)

    64B raw socket

    batch pkts/sec
    1 1201449
    2 1350028 (+12 %)
    4 1461416 (+22 %)
    8 1513080 (+26 %)
    16 1541216 (+28 %)
    32 1553440 (+29 %)
    64 1557888 (+30 %)

    We see a 20% improvement in throughput on UDP send and 30%
    on raw socket send.

    [ Add sparc syscall entries. -DaveM ]

    Signed-off-by: Anton Blanchard
    Signed-off-by: David S. Miller

    Anton Blanchard
     

12 Dec, 2009

1 commit

20 Oct, 2009

1 commit

13 Oct, 2009

1 commit

  • a2e272554   net: Introduce recvmmsg socket syscall ... Browse Code »

    Meaning receive multiple messages, reducing the number of syscalls and
    net stack entry/exit operations.

    Next patches will introduce mechanisms where protocols that want to
    optimize this operation will provide an unlocked_recvmsg operation.

    This takes into account comments made by:

    . Paul Moore: sock_recvmsg is called only for the first datagram,
    sock_recvmsg_nosec is used for the rest.

    . Caitlin Bestler: recvmmsg now has a struct timespec timeout, that
    works in the same fashion as the ppoll one.

    If the underlying protocol returns a datagram with MSG_OOB set, this
    will make recvmmsg return right away with as many datagrams (+ the OOB
    one) it has received so far.

    . Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen
    datagrams and then recvmsg returns an error, recvmmsg will return
    the successfully received datagrams, store the error and return it
    in the next call.

    This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg,
    where we will be able to acquire the lock only at batch start and end, not at
    every underlying recvmsg call.

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

    Arnaldo Carvalho de Melo
     

01 Oct, 2009

1 commit

  • b7058842c   net: Make setsockopt() optlen be unsigned. ... Browse Code »

    This provides safety against negative optlen at the type
    level instead of depending upon (sometimes non-trivial)
    checks against this sprinkled all over the the place, in
    each and every implementation.

    Based upon work done by Arjan van de Ven and feedback
    from Linus Torvalds.

    Signed-off-by: David S. Miller

    David S. Miller
     

20 Jul, 2008

1 commit

29 Apr, 2008

1 commit

28 Apr, 2008

1 commit

26 Apr, 2007

1 commit

21 Jun, 2006

1 commit

  • cee4cca74   Merge git://git.infradead.org/hdrcleanup-2.6 ... Browse Code »

    * git://git.infradead.org/hdrcleanup-2.6: (63 commits)
    [S390] __FD_foo definitions.
    Switch to __s32 types in joystick.h instead of C99 types for consistency.
    Add to headers included for userspace in
    Move inclusion of out of user scope in asm-x86_64/mtrr.h
    Remove struct fddi_statistics from user view in
    Move user-visible parts of drivers/s390/crypto/z90crypt.h to include/asm-s390
    Revert include/media changes: Mauro says those ioctls are only used in-kernel(!)
    Include and use __uXX types in
    Use __uXX types in , include too
    Remove private struct dx_hash_info from public view in
    Include and use __uXX types in
    Use __uXX types in for struct divert_blk et al.
    Use __u32 for elf_addr_t in , not u32. It's user-visible.
    Remove PPP_FCS from user view in , remove __P mess entirely
    Use __uXX types in user-visible structures in
    Don't use 'u32' in user-visible struct ip_conntrack_old_tuple.
    Use __uXX types for S390 DASD volume label definitions which are user-visible
    S390 BIODASDREADCMB ioctl should use __u64 not u64 type.
    Remove unneeded inclusion of from
    Fix private integer types used in V4L2 ioctls.
    ...

    Manually resolve conflict in include/linux/mtd/physmap.h

    Linus Torvalds
     

01 Jun, 2006

1 commit

  • 29f767a25   [PATCH] net/compat.h build fix ... Browse Code »

    From: Andrew Morton

    Move the forward decl outside the ifdef, since we use it in both legs.

    Should fix the spacr64 build error reported in
    http://bugzilla.kernel.org/show_bug.cgi?id=6625

    Acked-by: "David S. Miller"
    Cc: Cedric Pellerin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

26 Apr, 2006

1 commit

22 Mar, 2006

1 commit

09 Sep, 2005

1 commit

  • e50ef933e   [NET]: Need struct sock forward decl in net/compat.h ... Browse Code »

    Else we get build failures like:

    CC arch/sparc64/kernel/sparc64_ksyms.o
    In file included from arch/sparc64/kernel/sparc64_ksyms.c:28:
    include/net/compat.h:37: warning: "struct sock" declared inside parameter list
    include/net/compat.h:37: warning: its scope is only this definition or declaration, which is probably not what you want

    Signed-off-by: David S. Miller

    David S. Miller
     

08 Sep, 2005

1 commit

  • 8920e8f94   [PATCH] Fix 32bit sendmsg() flaw ... Browse Code »

    When we copy 32bit ->msg_control contents to kernel, we walk the same
    userland data twice without sanity checks on the second pass.

    Second version of this patch: the original broke with 64-bit arches
    running 32-bit-compat-mode executables doing sendmsg() syscalls with
    unaligned CMSG data areas

    Another thing is that we use kmalloc() to allocate and sock_kfree_s()
    to free afterwards; less serious, but also needs fixing.

    Signed-off-by: Al Viro
    Signed-off-by: David Woodhouse
    Signed-off-by: Chris Wright
    Signed-off-by: Linus Torvalds

    Al Viro
     

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