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    Subject[PATCH] CodingStyle: Add information about trailing whitespace.
    Signed-off-by: Josh Triplett <>
    Documentation/CodingStyle | 12 ++++++++++++
    1 files changed, 12 insertions(+), 0 deletions(-)

    diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle
    index b49b92e..00bffa7 100644
    --- a/Documentation/CodingStyle
    +++ b/Documentation/CodingStyle
    @@ -218,6 +218,18 @@ no space after the prefix increment & decrement unary operators:

    and no space around the '.' and "->" structure member operators.

    +Do not leave trailing whitespace at the ends of lines. Some editors with
    +"smart" indentation will insert whitespace at the beginning of new lines as
    +appropriate, so you can start typing the next line of code right away.
    +However, some such editors do not remove the whitespace if you end up not
    +putting a line of code there, such as if you leave a blank line. As a result,
    +you end up with lines containing trailing whitespace.
    +Git will warn you about patches that introduce trailing whitespace, and can
    +optionally strip the trailing whitespace for you; however, if applying a series
    +of patches, this may make later patches in the series fail by changing their
    +context lines.

    Chapter 4: Naming


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