Messages in this thread Patch in this message | | | From | Maninder Singh <> | Subject | [PATCH RESEND v2] scripts/checkpatch.pl: remove _deferred and _deferred_once false warning | Date | Wed, 2 Feb 2022 12:44:05 +0530 |
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printk_deferred and printk_deferred_once requires LOGLEVEL in argument, but checkpatch.pl reports it as warning:
WARNING: Possible unnecessary KERN_ALERT printk_deferred(KERN_ALERT "checking deferred\n");
As suggested by Andy, made 2 functions from logFunction.
1. logFunction: with all checks 2. logFunctionCore: without printk(?:_ratelimited|_once|_deferred) checking
and call logFunctionCore instead of logFunction for checking of loglevel, which will exclude checking of printk(?:_ratelimited|_once|_deferred).
This way, there is no need to maintain same stanza at places for removing printk flavours.
Co-developed-by: Vaneet Narang <v.narang@samsung.com> Signed-off-by: Vaneet Narang <v.narang@samsung.com> Signed-off-by: Maninder Singh <maninder1.s@samsung.com> --- v1 -> v2: made 2 functions to remove _deferred and _deferred_once as suggested by Andy Whitcroft.
scripts/checkpatch.pl | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index b01c36a15d9d..a6fa0c7360be 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -584,8 +584,7 @@ our $typeTypedefs = qr{(?x: our $zero_initializer = qr{(?:(?:0[xX])?0+$Int_type?|NULL|false)\b}; -our $logFunctions = qr{(?x: - printk(?:_ratelimited|_once|_deferred_once|_deferred|)| +our $logFunctionsCore = qr{(?x: (?:[a-z0-9]+_){1,2}(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)| TP_printk| WARN(?:_RATELIMIT|_ONCE|)| @@ -594,6 +593,11 @@ our $logFunctions = qr{(?x: seq_vprintf|seq_printf|seq_puts )}; +our $logFunctions = qr{(?x: + printk(?:_ratelimited|_once|_deferred_once|_deferred|)| + $logFunctionsCore +)}; + our $allocFunctions = qr{(?x: (?:(?:devm_)? (?:kv|k|v)[czm]alloc(?:_array)?(?:_node)? | @@ -6298,8 +6302,7 @@ sub process { } # check for logging functions with KERN_<LEVEL> - if ($line !~ /printk(?:_ratelimited|_once)?\s*\(/ && - $line =~ /\b$logFunctions\s*\(.*\b(KERN_[A-Z]+)\b/) { + if ($line =~ /\b$logFunctionsCore\s*\(.*\b(KERN_[A-Z]+)\b/) { my $level = $1; if (WARN("UNNECESSARY_KERN_LEVEL", "Possible unnecessary $level\n" . $herecurr) && -- 2.17.1
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