checkpatch: add more userspace directories to is_userspace()

Patch series "checkpatch: userspace improvements", v6.

Few improvements for user space code + --userspace option for projects
which vendored checkpatch.pl.

There could be probably more checks which are kernel space only.


This patch (of 4):

arch/ directory contains subdirectories with userspace tools (at least
arch/*/tools/ and arch/*/boot/tools/).  Add check to consider any
arch/.*/tools/ subdirectory as userspace tools directory.

This helps not only to strscpy() checks but also to CamelCase checks in
the next commit to be more precise.

This is a follow-up to 99b70ece33d8 ("checkpatch: suppress strscpy
warnings for userspace tools").

Link: https://lore.kernel.org/20260904110230.1219037-1-pvorel@suse.cz
Link: https://lore.kernel.org/20260904110230.1219037-2-pvorel@suse.cz
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index f424dafce5bc..b8702f6bc9b5 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2667,7 +2667,9 @@ sub exclude_global_initialisers {
 
 sub is_userspace {
     my ($realfile) = @_;
-    return ($realfile =~ m@^tools/@ || $realfile =~ m@^scripts/@);
+    return ($realfile =~ m@^tools/@ ||
+		$realfile =~ m@^scripts/@ ||
+		$realfile =~ m@^arch/.*/tools/@);
 }
 
 sub process {