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checkpatch: skip kernel specific checks for userspace

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These check are kernel specific, do not warn about it when testing
userspace code:

* BIT_MACRO
* LONG_UDELAY
* MSLEEP
* PREFER_KERNEL_TYPES
* USLEEP_RANGE

This is a follow-up to 99b70ece33 ("checkpatch: suppress strscpy
warnings for userspace tools").

Link: https://lore.kernel.org/20260904110230.1219037-5-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>
This commit is contained in:
Petr Vorel 2026-09-04 13:02:30 +02:00 committed by Andrew Morton
parent 4b5b44b161
commit 8fcc6355fe
1 changed files with 7 additions and 3 deletions
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10
scripts/checkpatch.pl
View File

@ -6696,7 +6696,8 @@ sub process {
}
# prefer usleep_range over udelay
if ($line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
if (!is_userspace($realfile) &&
$line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
my $delay = $1;
# ignore udelay's < 10, however
if (! ($delay < 10) ) {
@ -6710,7 +6711,8 @@ sub process {
}
# warn about unexpectedly long msleep's
if ($line =~ /\bmsleep\s*\((\d+)\);/) {
if (!is_userspace($realfile) &&
$line =~ /\bmsleep\s*\((\d+)\);/) {
if ($1 < 20) {
WARN("MSLEEP",
"msleep < 20ms can sleep for up to 20ms; see function description of msleep().\n" . $herecurr);
@ -6932,7 +6934,7 @@ sub process {
# check for c99 types like uint8_t used outside of uapi/ and tools/
if ($realfile !~ m@\binclude/uapi/@ &&
$realfile !~ m@\btools/@ &&
!is_userspace($realfile) &&
$line =~ /\b($Declare)\s*$Ident\s*[=;,\[]/) {
my $type = $1;
if ($type =~ /\b($typeC99Typedefs)\b/) {
@ -7182,6 +7184,7 @@ sub process {
# check usleep_range arguments
if ($perl_version_ok &&
defined $stat &&
!is_userspace($realfile) &&
$stat =~ /^\+(?:.*?)\busleep_range\s*\(\s*($FuncArg)\s*,\s*($FuncArg)\s*\)/) {
my $min = $1;
my $max = $7;
@ -7425,6 +7428,7 @@ sub process {
# check for #defines like: 1 << <digit> that could be BIT(digit), it is not exported to uapi
if ($realfile !~ m@^include/uapi/@ &&
!is_userspace($realfile) &&
$line =~ /#\s*define\s+\w+\s+\(?\s*1\s*([ulUL]*)\s*\<\<\s*(?:\d+|$Ident)\s*\)?/) {
my $ull = "";
$ull = "_ULL" if (defined($1) && $1 =~ /ll/i);