02 Nov, 2017

1 commit

  • 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
     

22 Sep, 2017

1 commit

  • The number of outstanding work requests is limited. If all work
    requests are in use, tx processing is postponed to another scheduling
    of the tx worker. Switch to a delayed worker to have a gap for tx
    completion queue events before the next retry.

    Signed-off-by: Ursula Braun
    Signed-off-by: David S. Miller

    Ursula Braun
     

12 Apr, 2017

1 commit

  • Several state changes occur during SMC socket closing. Currently
    state changes triggered locally occur in process context with
    lock_sock() taken while state changes triggered by peer occur in
    tasklet context with bh_lock_sock() taken. bh_lock_sock() does not
    wait till a lock_sock(() task in process context is finished. This
    may lead to races in socket state transitions resulting in dangling
    SMC-sockets, or it may lead to duplicate SMC socket freeing.
    This patch introduces a closing worker to run all state changes under
    lock_sock().

    Signed-off-by: Ursula Braun
    Reviewed-by: Thomas Richter
    Reported-by: Dave Jones
    Signed-off-by: David S. Miller

    Ursula Braun
     

10 Jan, 2017

12 commits