[PATCH 31/31] checkpatch: Don't allow common.h and dm.h in headers

[Simon Glass]

These headers should not be included in other header files. Add a
checkpatch rule and test for this.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 scripts/checkpatch.pl           | 10 ++++++++--
 tools/patman/test_checkpatch.py |  7 +++++++
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 238f12cb46..3932362dba 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2322,7 +2322,7 @@ sub get_raw_comment {
 
 # Checks specific to U-Boot
 sub u_boot_line {
-	my ($realfile, $line,  $herecurr) = @_;
+	my ($realfile, $line, $rawline, $herecurr) = @_;
 
 	# ask for a test if a new uclass ID is added
 	if ($realfile =~ /uclass-id.h/ && $line =~ /^\+/) {
@@ -2353,6 +2353,12 @@ sub u_boot_line {
 		ERROR("DEFINE_CONFIG_CMD",
 		      "All commands are managed by Kconfig\n" . $herecurr);
 	}
+
+	# Don't put common.h and dm.h in header files
+	if ($realfile =~ /\.h$/ && $rawline =~ /^\+#include\s*<(common|dm)\.h>*/) {
+		ERROR("BARRED_INCLUDE_IN_HDR",
+		      "Avoid including common.h and dm.h in header files\n" . $herecurr);
+	}
 }
 
 sub process {
@@ -3296,7 +3302,7 @@ sub process {
 		}
 
 		if ($u_boot) {
-			u_boot_line($realfile, $line,  $herecurr);
+			u_boot_line($realfile, $line, $rawline, $herecurr);
 		}
 
 # check we are in a valid source file C or perl if not then ignore this hunk
diff --git a/tools/patman/test_checkpatch.py b/tools/patman/test_checkpatch.py
index 9d233f99ae..792196e689 100644
--- a/tools/patman/test_checkpatch.py
+++ b/tools/patman/test_checkpatch.py
@@ -398,6 +398,13 @@ index 0000000..2234c87
         pm.add_line('common/main.c', '#undef CONFIG_CMD_WHICH')
         self.checkSingleMessage(pm, 'DEFINE_CONFIG_CMD', 'error')
 
+    def testBarredIncludeInHdr(self):
+        """Test for using a barred include in a header file"""
+        pm = PatchMaker()
+        #pm.add_line('include/myfile.h', '#include <common.h>')
+        pm.add_line('include/myfile.h', '#include <dm.h>')
+        self.checkSingleMessage(pm, 'BARRED_INCLUDE_IN_HDR', 'error')
+
 
 if __name__ == "__main__":
     unittest.main()
-- 
2.28.0.rc0.105.gf9edc3c819-goog