linux-kernel - [PATCH v2] scripts: checkpatch: allow "case" macros

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Date:   Thu, 27 Oct 2022 15:43:34 +0200
From:   Stanislaw Gruszka <stf_xl@...pl>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Joe Perches <joe@...ches.com>,
        Andy Whitcroft <apw@...onical.com>
Cc:     Dwaipayan Ray <dwaipayanray1@...il.com>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] scripts: checkpatch: allow "case" macros

Do not report errors like below:

./scripts/checkpatch.pl -f drivers/net/wireless/ath/ath10k/wmi.h

ERROR: Macros with complex values should be enclosed in parentheses
+#define C2S(x) case x: return #x

since many "case ..." macros are already used by some in-kernel drivers.

Signed-off-by: Stanislaw Gruszka <stf_xl@...pl>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 1e5e66ae5a52..4b888b1313d5 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5901,6 +5901,7 @@ sub process {
 			    $dstat !~ /$exceptions/ &&
 			    $dstat !~ /^\.$Ident\s*=/ &&				# .foo =
 			    $dstat !~ /^(?:\#\s*$Ident|\#\s*$Constant)\s*$/ &&		# stringification #foo
+			    $dstat !~ /^case\b/ &&					# case ...
 			    $dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ &&	# do {...} while (...); // do {...} while (...)
 			    $dstat !~ /^while\s*$Constant\s*$Constant\s*$/ &&		# while (...) {...}
 			    $dstat !~ /^for\s*$Constant$/ &&				# for (...)
-- 
2.25.4