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11 Commits

Author SHA1 Message Date
Jonathan Corbet
b19511926c Revert "docs: checkpatch: add UNNECESSARY/UNSPECIFIED_INT and UNNECESSARY_ELSE" 
This reverts commit cbb817fc2e.

Late-arriving nacks make it clear that I applied this one too soon.

Link: https://lore.kernel.org/lkml/CAKXUXMzEFQd1JJhx4ZbBQiuSB7Fk3bd7dwJYmPOvEtMqZopxpg@mail.gmail.com/
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-10-04 17:13:53 -06:00
Utkarsh Verma
250a0a5ba9 docs: checkpatch: add multiline, do/while, and multiple-assignment messages 
Added and documented 3 new message types:
- MULTILINE_DEREFERENCE
- SINGLE_STATEMENT_DO_WHILE_MACRO
- MULTIPLE_ASSIGNMENTS

Signed-off-by: Utkarsh Verma <utkarshverma294@gmail.com>
Link: https://lore.kernel.org/r/20210925163852.12096-1-utkarshverma294@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-09-27 11:42:45 -06:00
Utkarsh Verma
cbb817fc2e docs: checkpatch: add UNNECESSARY/UNSPECIFIED_INT and UNNECESSARY_ELSE 
Added and documented 3 new message types:
- UNNECESSARY_INT
- UNSPECIFIED_INT
- UNNECESSARY_ELSE

Signed-off-by: Utkarsh Verma <utkarshverma294@gmail.com>
Link: https://lore.kernel.org/r/20210925201746.15917-1-utkarshverma294@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-09-27 11:39:16 -06:00
Utkarsh Verma
3454cd5616 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>
 2021-09-14 15:09:24 -06:00
Utkarsh Verma
29bd0cace2 Documentation: checkpatch: Add TRAILING_SEMICOLON message 
Add a new message type TRAILING_SEMICOLON for the macro definitions
that conclude with a semicolon.

Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Utkarsh Verma <utkarshverma294@gmail.com>
Link: https://lore.kernel.org/r/20210904074201.13532-1-utkarshverma294@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-09-14 15:07:49 -06:00
Utkarsh Verma
d9548979f7 Documentation: checkpatch: Add SPLIT_STRING message 
Add a new message type SPLIT_STRING under the 'Indentation and Line
Breaks' subsection. Checkpatch documentation for the splitting of
quoted strings that appear in userspace, across multiple lines.

Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Utkarsh Verma <utkarshverma294@gmail.com>
Link: https://lore.kernel.org/r/20210904073621.12987-1-utkarshverma294@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-09-14 15:07:26 -06:00
Dwaipayan Ray
91a1265cac docs: checkpatch: Document and segregate more checkpatch message types 
Add and document more checkpatch message types. About 50% of all
message types are documented now.

In addition to this:

- Create a new subsection 'Indentation and Line Breaks'.
- Rename subsection 'Comment style' to simply 'Comments'.
- Refactor some of the existing types to appropriate subsections.

Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Tested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Link: https://lore.kernel.org/r/20210614141132.6881-1-dwaipayanray1@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-06-14 15:37:12 -06:00
Andrew Jeffery
0e7c52da1a Documentation: checkpatch: Tweak BIT() macro include 
While include/linux/bitops.h brings in the BIT() macro, it was moved to
include/linux/bits.h in commit 8bd9cb51da ("locking/atomics, asm-generic:
Move some macros from <linux/bitops.h> to a new <linux/bits.h> file").

Since that commit BIT() has moved again into include/vdso/bits.h via
commit 3945ff37d2 ("linux/bits.h: Extract common header for vDSO").

I think the move to the vDSO header can be considered an implementation
detail, so for now update the checkpatch documentation to recommend use
of include/linux/bits.h.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Jiri Slaby <jirislaby@kernel.org>
Acked-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20210520093949.511471-1-andrew@aj.id.au
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-05-20 14:27:30 -06:00
Dwaipayan Ray
76001b8bbf docs: Add more message type documentations for checkpatch 
- Document a couple of more checkpatch message types.
- Add a blank line before all `See:` lines to improve the
  rst output.
- Create a new subsection `Permissions` and move a few types
  to it.

Signed-off-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Acked-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20210515132348.19082-1-dwaipayanray1@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-05-20 14:12:44 -06:00
Dwaipayan Ray
3337c3a152 docs: document all error message types in checkpatch 
All the error message types now have a verbose description.

Also there are two new groups of message types:

- Macros, Attributes and Symbols
- Functions and Variables

Rearrange the message types to fit these new groups as needed.

Signed-off-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Reviewed-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20210322082139.33822-1-dwaipayanray1@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-03-25 11:47:42 -06:00
Dwaipayan Ray
2eecbab864 docs: add documentation for checkpatch 
Add documentation for kernel script checkpatch.pl.
This documentation is also parsed by checkpatch to
enable a verbose mode.

The checkpatch message types are grouped by usage. Under
each group the types are described briefly. 34 of such
types are documented.

Signed-off-by: Dwaipayan Ray <dwaipayanray1@gmail.com>
Link: https://lore.kernel.org/r/20210226093827.12700-2-dwaipayanray1@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2021-03-06 17:36:51 -07:00