Files
android/scripts/coccinelle/misc/warn.cocci
T
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

110 lines
1.6 KiB
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/// Use WARN(1,...) rather than printk followed by WARN_ON(1)
///
// Confidence: High
// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6. GPLv2.
// Copyright: (C) 2012 Gilles Muller, INRIA/LiP6. GPLv2.
// URL: http://coccinelle.lip6.fr/
// Comments:
// Options: --no-includes --include-headers
virtual patch
virtual context
virtual org
virtual report
@bad1@
position p;
@@
printk(...);
printk@p(...);
WARN_ON(1);
@r1 depends on context || report || org@
position p != bad1.p;
@@
printk@p(...);
*WARN_ON(1);
@script:python depends on org@
p << r1.p;
@@
cocci.print_main("printk + WARN_ON can be just WARN",p)
@script:python depends on report@
p << r1.p;
@@
msg = "SUGGESTION: printk + WARN_ON can be just WARN"
coccilib.report.print_report(p[0],msg)
@ok1 depends on patch@
expression list es;
position p != bad1.p;
@@
-printk@p(
+WARN(1,
es);
-WARN_ON(1);
@depends on patch@
expression list ok1.es;
@@
if (...)
- {
WARN(1,es);
- }
// --------------------------------------------------------------------
@bad2@
position p;
@@
printk(...);
printk@p(...);
WARN_ON_ONCE(1);
@r2 depends on context || report || org@
position p != bad1.p;
@@
printk@p(...);
*WARN_ON_ONCE(1);
@script:python depends on org@
p << r2.p;
@@
cocci.print_main("printk + WARN_ON_ONCE can be just WARN_ONCE",p)
@script:python depends on report@
p << r2.p;
@@
msg = "SUGGESTION: printk + WARN_ON_ONCE can be just WARN_ONCE"
coccilib.report.print_report(p[0],msg)
@ok2 depends on patch@
expression list es;
position p != bad2.p;
@@
-printk@p(
+WARN_ONCE(1,
es);
-WARN_ON_ONCE(1);
@depends on patch@
expression list ok2.es;
@@
if (...)
- {
WARN_ONCE(1,es);
- }