+ checkpatch-add-context-analysis-attributes.patch added to mm-nonmm-unstable branch

+ checkpatch-add-context-analysis-attributes.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: checkpatch: add context-analysis attributes
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     checkpatch-add-context-analysis-attributes.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/checkpatch-add-context-analysis-attributes.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Vincent Donnefort <vdonnefort@google.com>
Subject: checkpatch: add context-analysis attributes
Date: Thu, 12 Nov 2026 15:12:03 +0000

Checkpatch doesn't know about the context analysis attributes and
misparses annotated declarations (e.g.  mistaking __guarded_by() fields
for extern prototype).  Add them to the known attributes list.

Link: https://lore.kernel.org/20261112151203.3129005-1-vdonnefort@google.com
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Marco Elver <elver@google.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
---

 scripts/checkpatch.pl |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

--- a/scripts/checkpatch.pl~checkpatch-add-context-analysis-attributes
+++ a/scripts/checkpatch.pl
@@ -526,6 +526,25 @@ our $InitAttributeData = qr{$InitAttribu
 our $InitAttributeConst = qr{$InitAttributePrefix(?:initconst\b)};
 our $InitAttributeInit = qr{$InitAttributePrefix(?:init\b)};
 our $InitAttribute = qr{$InitAttributeData|$InitAttributeConst|$InitAttributeInit};
+our $ContextAnalysis = qr{
+			__guarded_by\b|
+			__pt_guarded_by\b|
+			__rcu_guarded\b|
+			__must_hold\b|
+			__must_hold_shared\b|
+			__must_not_hold\b|
+			__acquires\b|
+			__acquires_shared\b|
+			__cond_acquires\b|
+			__cond_acquires_shared\b|
+			__releases\b|
+			__releases_shared\b|
+			__cond_releases\b|
+			__no_context_analysis\b|
+			__context_unsafe\b|
+			__acquires_ret\b|
+			__acquires_shared_ret\b
+		}x;
 
 # Notes to $Attribute:
 # We need \b after 'init' otherwise 'initconst' will cause a false positive in a check
@@ -551,6 +570,7 @@ our $Attribute	= qr{
 			__ro_after_init|
 			__kprobes|
 			$InitAttribute|
+			$ContextAnalysis|
 			__aligned\s*\(.*\)|
 			____cacheline_aligned|
 			____cacheline_aligned_in_smp|
_

Patches currently in -mm which might be from vdonnefort@google.com are

checkpatch-add-context-analysis-attributes.patch