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| author | Utkarsh Verma <utkarshverma294@gmail.com> | 2021-09-04 11:23:30 +0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2021-09-15 00:09:24 +0300 |
| commit | 3454cd5616e963d76d538383250dd4467f013c68 (patch) | |
| tree | 4246f8f2f6287d8ff1ab6257bfa820b015e88536 /Documentation/dev-tools/checkpatch.rst | |
| parent | 29bd0cace2351eeccf325e36756aa55aa939bd11 (diff) | |
| download | linux-3454cd5616e963d76d538383250dd4467f013c68.tar.xz | |
Documentation: checkpatch: Add SYMBOLIC_PERMS message
Add a new message type SYMBOLIC_PERMS under the 'Permissions'
subsection. Octal permission bits are easier to read and understand
instead of their symbolic macro names.
Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Utkarsh Verma <utkarshverma294@gmail.com>
Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Link: https://lore.kernel.org/r/20210904082330.14864-1-utkarshverma294@gmail.com
[jc: Tweaked wording as suggested by Dwaipayan Ray]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/dev-tools/checkpatch.rst')
| -rw-r--r-- | Documentation/dev-tools/checkpatch.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/dev-tools/checkpatch.rst b/Documentation/dev-tools/checkpatch.rst index 891779c7f0bf..70480e38848e 100644 --- a/Documentation/dev-tools/checkpatch.rst +++ b/Documentation/dev-tools/checkpatch.rst @@ -984,6 +984,17 @@ Permissions Permission bits should use 4 digit octal permissions (like 0700 or 0444). Avoid using any other base like decimal. + **SYMBOLIC_PERMS** + Permission bits in the octal form are more readable and easier to + understand than their symbolic counterparts because many command-line + tools use this notation. Experienced kernel developers have been using + these traditional Unix permission bits for decades and so they find it + easier to understand the octal notation than the symbolic macros. + For example, it is harder to read S_IWUSR|S_IRUGO than 0644, which + obscures the developer's intent rather than clarifying it. + + See: https://lore.kernel.org/lkml/CA+55aFw5v23T-zvDZp-MmD_EYxF8WbafwwB59934FV7g21uMGQ@mail.gmail.com/ + Spacing and Brackets -------------------- |