lint/checkpatch.pl: Check for 0-length and 1-element arrays

Use C99 flexible arrays instead of deprecated fake flexible arrays.
This reduce difference with upstream.

Change-Id: I24016493280e22f34ae5cce49fe7c1f520270f9a
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76869
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
This commit is contained in:
Elyes Haouas 2023-08-01 17:53:42 +02:00
parent b8c0e326a3
commit 281d6623f2
1 changed files with 10 additions and 0 deletions

View File

@ -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/@) {