The patch titled
Subject: checkpatch: exclude sizeof sub-expressions from MACRO_ARG_REUSE
has been added to the -mm tree. Its filename is
checkpatch-exclude-sizeof-sub-expressions-from-macro_arg_reuse.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-exclude-sizeof-sub-expressions-from-macro_arg_reuse.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-exclude-sizeof-sub-expressions-from-macro_arg_reuse.patch
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------------------------------------------------------
From: Brendan Jackman <brendan.jackman@xxxxxxxxxxxxxxxxx>
Subject: checkpatch: exclude sizeof sub-expressions from MACRO_ARG_REUSE
The arguments of sizeof are not evaluated so arguments are safe to re-use
in that context. Excluding sizeof subexpressions means macros like
ARRAY_SIZE can pass checkpatch.
Link: http://lkml.kernel.org/r/20190806070833.24423-1-brendan.jackman@xxxxxxxxxxxxxxxxx
Signed-off-by: Brendan Jackman <brendan.jackman@xxxxxxxxxxxxxxxxx>
Acked-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkpatch.pl | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/checkpatch.pl~checkpatch-exclude-sizeof-sub-expressions-from-macro_arg_reuse
+++ a/scripts/checkpatch.pl
@@ -5219,7 +5219,7 @@ sub process {
next if ($arg =~ /\.\.\./);
next if ($arg =~ /^type$/i);
my $tmp_stmt = $define_stmt;
- $tmp_stmt =~ s/\b(typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
+ $tmp_stmt =~ s/\b(sizeof|typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
$tmp_stmt =~ s/\#+\s*$arg\b//g;
$tmp_stmt =~ s/\b$arg\s*\#\#//g;
my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g;
_
Patches currently in -mm which might be from brendan.jackman@xxxxxxxxxxxxxxxxx are
checkpatch-exclude-sizeof-sub-expressions-from-macro_arg_reuse.patch
