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
     

08 May, 2013

1 commit

  • 742ae1e35   xfs: introduce CONFIG_XFS_WARN ... Browse Code »

    Running a CONFIG_XFS_DEBUG kernel in production environments is not
    the best idea as it introduces significant overhead, can change
    the behaviour of algorithms (such as allocation) to improve test
    coverage, and (most importantly) panic the machine on non-fatal
    errors.

    There are many cases where all we want to do is run a
    kernel with more bounds checking enabled, such as is provided by the
    ASSERT() statements throughout the code, but without all the
    potential overhead and drawbacks.

    This patch converts all the ASSERT statements to evaluate as
    WARN_ON(1) statements and hence if they fail dump a warning and a
    stack trace to the log. This has minimal overhead and does not
    change any algorithms, and will allow us to find strange "out of
    bounds" problems more easily on production machines.

    There are a few places where assert statements contain debug only
    code. These are converted to be debug-or-warn only code so that we
    still get all the assert checks in the code.

    Signed-off-by: Dave Chinner
    Reviewed-by: Brian Foster
    Signed-off-by: Ben Myers

    Dave Chinner
     

04 Apr, 2013

1 commit

  • 3d6e03619   xfs: Add ratelimited printk for different alert levels ... Browse Code »

    Ratelimited printk will be useful in printing xfs messages which are otherwise
    not required to be printed always due to their high rate (to prevent kernel ring
    buffer from overflowing), while at the same time required to be printed.

    Signed-off-by: Raghavendra D Prabhu
    Reviewed-by: Rich Johnston
    Reviewed-by: Dave Chinner
    Signed-off-by: Ben Myers

    Rich Johnston
     

01 Nov, 2011

1 commit

  • b9075fa96   treewide: use __printf not __attribute__((format(printf,...))) ... Browse Code »

    Standardize the style for compiler based printf format verification.
    Standardized the location of __printf too.

    Done via script and a little typing.

    $ grep -rPl --include=*.[ch] -w "__attribute__" * | \
    grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \
    xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }'

    [akpm@linux-foundation.org: revert arch bits]
    Signed-off-by: Joe Perches
    Cc: "Kirill A. Shutemov"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     

13 Aug, 2011

1 commit

  • c59d87c46   xfs: remove subdirectories ... Browse Code »

    Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the
    annoying subdirectories in the XFS source code. Besides the large
    amount of file rename the only changes are to the Makefile, a few
    files including headers with the subdirectory prefix, and the binary
    sysctl compat code that includes a header under fs/xfs/ from
    kernel/.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Alex Elder

    Christoph Hellwig