09 Dec, 2018

2 commits

  • GCC 4.6 manual says:

    -funit-at-a-time
    This option is left for compatibility reasons. -funit-at-a-time has
    no effect, while -fno-unit-at-a-time implies -fno-toplevel-reorder
    and -fno-section-anchors. Enabled by default.

    Remove it.

    Signed-off-by: Masahiro Yamada
    Signed-off-by: Borislav Petkov
    Acked-by: Ingo Molnar
    Acked-by: Michael Ellerman
    Cc: "H. Peter Anvin"
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Cc: Richard Weinberger
    Cc: Thomas Gleixner
    Cc: linuxppc-dev@lists.ozlabs.org
    Cc: x86-ml
    Link: https://lkml.kernel.org/r/1541990120-9643-3-git-send-email-yamada.masahiro@socionext.com

    Masahiro Yamada
     
  • Commit

    cafa0010cd51 ("Raise the minimum required gcc version to 4.6")

    bumped the minimum GCC version to 4.6 for all architectures.

    '$(call cc-option,-fno-unit-at-a-time)' is now dead code since
    '$(cc-version) -lt 0400' is always false. Remove it.

    Signed-off-by: Masahiro Yamada
    Signed-off-by: Borislav Petkov
    Acked-by: Richard Weinberger
    Cc: "H. Peter Anvin"
    Cc: Ingo Molnar
    Cc: Michael Ellerman
    Cc: Thomas Gleixner
    Cc: linuxppc-dev@lists.ozlabs.org
    Cc: x86-ml
    Link: https://lkml.kernel.org/r/1541990120-9643-2-git-send-email-yamada.masahiro@socionext.com

    Masahiro Yamada
     

24 Aug, 2018

1 commit

  • Commit a0f97e06a43c ("kbuild: enable 'make CFLAGS=...' to add
    additional options to CC") renamed CFLAGS to KBUILD_CFLAGS.

    Commit 222d394d30e7 ("kbuild: enable 'make AFLAGS=...' to add
    additional options to AS") renamed AFLAGS to KBUILD_AFLAGS.

    Commit 06c5040cdb13 ("kbuild: enable 'make CPPFLAGS=...' to add
    additional options to CPP") renamed CPPFLAGS to KBUILD_CPPFLAGS.

    For some reason, LDFLAGS was not renamed.

    Using a well-known variable like LDFLAGS may result in accidental
    override of the variable.

    Kbuild generally uses KBUILD_ prefixed variables for the internally
    appended options, so here is one more conversion to sanitize the
    naming convention.

    I did not touch Makefiles under tools/ since the tools build system
    is a different world.

    Signed-off-by: Masahiro Yamada
    Acked-by: Kirill A. Shutemov
    Reviewed-by: Palmer Dabbelt

    Masahiro Yamada
     

19 Jul, 2018

1 commit


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
     

02 Apr, 2015

1 commit

  • Prior to this commit, it was impossible to use relative path to
    include Makefiles from the top level Makefile because the option
    "--include-dir=$(srctree)" becomes effective when Make enters into
    sub Makefiles.

    To use relative path in any places, this commit moves the option
    above the "sub-make" target.

    Signed-off-by: Masahiro Yamada
    Signed-off-by: Michal Marek

    Masahiro Yamada
     

10 Jan, 2015

1 commit


10 Apr, 2012

1 commit


25 Mar, 2012

1 commit


02 Nov, 2011

1 commit