[PATCH 6/6] checkpatch.pl: Request if() instead #ifdef

[Simon Glass]

There is a lot of use of #ifdefs in U-Boot. In an effort reduce this,
suggest using the compile-time construct.

Signed-off-by: Simon Glass <s...@chromium.org>
---

 scripts/checkpatch.pl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 22869992e90..33ec4e2bfd4 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2259,6 +2259,12 @@ sub u_boot_line {
                WARN("CMD_TEST",
                     "Possible new command - make sure you add a test\n" . 
$herecurr);
        }
+
+       # use if instead of #if
+       if ($line =~ /^\+#if.*CONFIG.*/) {
+               WARN("PREFER_IF",
+                    "Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or 
#ifdef' where possible\n" . $herecurr);
+       }
 }
 
 sub process {
-- 
2.27.0.rc0.183.gde8f92d652-goog