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-rwxr-xr-xutil/lint/checkpatch.pl10
1 files changed, 10 insertions, 0 deletions
diff --git a/util/lint/checkpatch.pl b/util/lint/checkpatch.pl
index c4e9ac8e41..bda7b31d88 100755
--- a/util/lint/checkpatch.pl
+++ b/util/lint/checkpatch.pl
@@ -6897,6 +6897,16 @@ sub process {
"Using $1 should generally have parentheses around the comparison\n" . $herecurr);
}
+# check for array definition/declarations that should use flexible arrays instead
+ if ($sline =~ /^[\+ ]\s*\}(?:\s*__packed)?\s*;\s*$/ &&
+ $prevline =~ /^\+\s*(?:\}(?:\s*__packed\s*)?|$Type)\s*$Ident\s*\[\s*(0|1)\s*\]\s*;\s*$/) {
+ if (ERROR("FLEXIBLE_ARRAY",
+ "Use C99 flexible arrays - see https://docs.kernel.org/process/deprecated.html#zero-length-and-one-element-arrays\n" . $hereprev) &&
+ $1 == '0' && $fix) {
+ $fixed[$fixlinenr - 1] =~ s/\[\s*0\s*\]/[]/;
+ }
+ }
+
# whine mightly about in_atomic
if ($line =~ /\bin_atomic\s*\(/) {
if ($realfile =~ m@^drivers/@) {