[Linux-kernel-mentees] Clarification on the behaviour of checkpatch.pl

[Saheed Bolarinwa <refactormyself@gmail.com>]

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Hello,

My experience is that checkpatch.pl will not flag some warnings when I use

the '-f' flag. This especially true for .rst files. My understanding is 
that this flag

is needed to use it with a raw source file instead of a patch.

Please, I will like to confirm if this is a normal behaviour or is it my 
system setup.

Below is an example from the current stable release linux-5.6.y

    [saheed@net linux-stable]$ perl ./scripts/checkpatch.pl -f
    ./Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
    total: 0 errors, 0 warnings, 279 lines checked

    ./Documentation/admin-guide/hw-vuln/tsx_async_abort.rst has no
    obvious style problems and is ready for submission.


    [saheed@net linux-stable]$ perl ./scripts/checkpatch.pl
    ./Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
    WARNING: Possible unwrapped commit description (prefer a maximum 75
    chars per line)
    #6:
    TAA is a hardware vulnerability that allows unprivileged speculative
    access to

    ERROR: Does not appear to be a unified-diff format patch

    total: 1 errors, 1 warnings, 0 lines checked

    NOTE: For some of the reported defects, checkpatch may be able to
           mechanically convert to the typical style using --fix or
    --fix-inplace.

    ./Documentation/admin-guide/hw-vuln/tsx_async_abort.rst has style
    problems, please review.

    NOTE: If any of the errors are false positives, please report
           them to the maintainer, see CHECKPATCH in MAINTAINERS.


    Thank you.

    Bolarinwa Saheed


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