linux-kernel - [PATCH 2/2] clang-format: align consecutive macros

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Message-Id: <20250210-clang-format-fixes-v1-2-9bcf43a4b4b2@wolfvision.net>
Date: Mon, 10 Feb 2025 09:21:01 +0100
From: Michael Riesch <michael.riesch@...fvision.net>
To: Miguel Ojeda <ojeda@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
 Nick Desaulniers <ndesaulniers@...gle.com>, 
 Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>
Cc: linux-kernel@...r.kernel.org, llvm@...ts.linux.dev, 
 Michael Riesch <michael.riesch@...fvision.net>
Subject: [PATCH 2/2] clang-format: align consecutive macros

clang-format 9 introduced the option "AlignConsecutiveMacros".
Set it to "AcrossEmptyLinesAndComments" in order to avoid macro
definitions of the form:

    #define MAGIC_REGISTER_1 0x42
    #define MAGIC_REGISTER_BIT_FLIP BIT(2)
    /* important comment */
    #define MAGIC_REGISTER_BIT_ENABLE BIT(12)

    #define MAGIC_REGISTER_2 0x43

With the option set to "AcrossEmptyLinesAndComments", they will
be converted to

    #define MAGIC_REGISTER_1	      0x42
    #define MAGIC_REGISTER_BIT_FLIP   BIT(2)
    /* important comment */
    #define MAGIC_REGISTER_BIT_ENABLE BIT(12)

    #define MAGIC_REGISTER_2	      0x43

which seems to be the convention in the kernel code base.

Signed-off-by: Michael Riesch <michael.riesch@...fvision.net>
---
 .clang-format | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.clang-format b/.clang-format
index 8040b516185b..30d09cb88170 100644
--- a/.clang-format
+++ b/.clang-format
@@ -13,6 +13,7 @@ AccessModifierOffset: -4
 AlignAfterOpenBracket: Align
 AlignConsecutiveAssignments: false
 AlignConsecutiveDeclarations: false
+AlignConsecutiveMacros: AcrossEmptyLinesAndComments
 AlignEscapedNewlines: Left
 AlignOperands: true
 AlignTrailingComments: false

-- 
2.34.1