checkpatch: ignore #define TRACE_<foo> macros

The tracing subsystem uses slightly odd #defines to set path/directory
locations for include files.

These #defines can cause false positives for the complex macro tests so
add exclusions for these specific #defines (TRACE_SYSTEM,
TRACE_INCLUDE_FILE, TRACE_INCLUDE_PATH).

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3ba2db6373847e6d385a72bddd90f66bfb915211..db7778a8f4148b93879cd5b0596e3764d030330b 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3451,7 +3451,8 @@ sub process {
                            $dstat !~ /^for\s*$Constant$/ &&                            # for (...)
                            $dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ &&   # for (...) bar()
                            $dstat !~ /^do\s*{/ &&                                      # do {...
-                           $dstat !~ /^\({/)                                           # ({...
+                           $dstat !~ /^\({/ &&                                         # ({...
+                           $ctx !~ /^.\s*#\s*define\s+TRACE_(?:SYSTEM|INCLUDE_FILE|INCLUDE_PATH)\b/)
                        {
                                $ctx =~ s/\n*$//;
                                my $herectx = $here . "\n";