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authorDenis Efremov <efremov@linux.com>2021-03-08 10:30:18 +0300
committerJulia Lawall <Julia.Lawall@inria.fr>2021-05-01 21:23:56 +0200
commitcb62732d3bf0cd4c136d5927b003f002ff658e1c (patch)
treeb1e1c3a0aa24e082d69db83823aa4116a43cc7d9 /scripts/coccinelle
parent3afb532b19df3238dede98b184bc8852517f206a (diff)
downloadlwn-cb62732d3bf0cd4c136d5927b003f002ff658e1c.tar.gz
lwn-cb62732d3bf0cd4c136d5927b003f002ff658e1c.zip
coccinelle: misc: update uninitialized_var.cocci documentation
Remove the documentation link from the warning message because commit 3942ea7a10c9 ("deprecated.rst: Remove now removed uninitialized_var") removed the section from documentation. Update the rule documentation accordingly. Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
Diffstat (limited to 'scripts/coccinelle')
-rw-r--r--scripts/coccinelle/misc/uninitialized_var.cocci15
1 files changed, 10 insertions, 5 deletions
diff --git a/scripts/coccinelle/misc/uninitialized_var.cocci b/scripts/coccinelle/misc/uninitialized_var.cocci
index 8fa845cefe11..69bbaae47e73 100644
--- a/scripts/coccinelle/misc/uninitialized_var.cocci
+++ b/scripts/coccinelle/misc/uninitialized_var.cocci
@@ -1,7 +1,9 @@
// SPDX-License-Identifier: GPL-2.0-only
///
/// Please, don't reintroduce uninitialized_var().
-/// From Documentation/process/deprecated.rst:
+///
+/// From Documentation/process/deprecated.rst,
+/// commit 4b19bec97c88 ("docs: deprecated.rst: Add uninitialized_var()"):
/// For any compiler warnings about uninitialized variables, just add
/// an initializer. Using warning-silencing tricks is dangerous as it
/// papers over real bugs (or can in the future), and suppresses unrelated
@@ -11,6 +13,11 @@
/// obviously redundant, the compiler's dead-store elimination pass will make
/// sure there are no needless variable writes.
///
+/// Later, commit 3942ea7a10c9 ("deprecated.rst: Remove now removed
+/// uninitialized_var") removed this section because all initializations of
+/// this kind were cleaned-up from the kernel. This cocci rule checks that
+/// the macro is not explicitly or implicitly reintroduced.
+///
// Confidence: High
// Copyright: (C) 2020 Denis Efremov ISPRAS
// Options: --no-includes --include-headers
@@ -40,12 +47,10 @@ position p;
p << r.p;
@@
-coccilib.report.print_report(p[0],
- "WARNING this kind of initialization is deprecated (https://www.kernel.org/doc/html/latest/process/deprecated.html#uninitialized-var)")
+coccilib.report.print_report(p[0], "WARNING this kind of initialization is deprecated")
@script:python depends on org@
p << r.p;
@@
-coccilib.org.print_todo(p[0],
- "WARNING this kind of initialization is deprecated (https://www.kernel.org/doc/html/latest/process/deprecated.html#uninitialized-var)")
+coccilib.org.print_todo(p[0], "WARNING this kind of initialization is deprecated")