From: Marco Elver <elver@google.com>
To: elver@google.com
Cc: paulmck@kernel.org, dvyukov@google.com, glider@google.com,
andreyknvl@google.com, cai@lca.pw, kasan-dev@googlegroups.com,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] kcsan: Move kcsan_{disable,enable}_current() to kcsan-checks.h
Date: Tue, 31 Mar 2020 21:32:32 +0200 [thread overview]
Message-ID: <20200331193233.15180-1-elver@google.com> (raw)
Both affect access checks, and should therefore be in kcsan-checks.h.
This is in preparation to use these in compiler.h.
Signed-off-by: Marco Elver <elver@google.com>
---
include/linux/kcsan-checks.h | 16 ++++++++++++++++
include/linux/kcsan.h | 16 ----------------
2 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/include/linux/kcsan-checks.h b/include/linux/kcsan-checks.h
index 101df7f46d89..ef95ddc49182 100644
--- a/include/linux/kcsan-checks.h
+++ b/include/linux/kcsan-checks.h
@@ -36,6 +36,20 @@
*/
void __kcsan_check_access(const volatile void *ptr, size_t size, int type);
+/**
+ * kcsan_disable_current - disable KCSAN for the current context
+ *
+ * Supports nesting.
+ */
+void kcsan_disable_current(void);
+
+/**
+ * kcsan_enable_current - re-enable KCSAN for the current context
+ *
+ * Supports nesting.
+ */
+void kcsan_enable_current(void);
+
/**
* kcsan_nestable_atomic_begin - begin nestable atomic region
*
@@ -133,6 +147,8 @@ void kcsan_end_scoped_access(struct kcsan_scoped_access *sa);
static inline void __kcsan_check_access(const volatile void *ptr, size_t size,
int type) { }
+static inline void kcsan_disable_current(void) { }
+static inline void kcsan_enable_current(void) { }
static inline void kcsan_nestable_atomic_begin(void) { }
static inline void kcsan_nestable_atomic_end(void) { }
static inline void kcsan_flat_atomic_begin(void) { }
diff --git a/include/linux/kcsan.h b/include/linux/kcsan.h
index 17ae59e4b685..53340d8789f9 100644
--- a/include/linux/kcsan.h
+++ b/include/linux/kcsan.h
@@ -50,25 +50,9 @@ struct kcsan_ctx {
*/
void kcsan_init(void);
-/**
- * kcsan_disable_current - disable KCSAN for the current context
- *
- * Supports nesting.
- */
-void kcsan_disable_current(void);
-
-/**
- * kcsan_enable_current - re-enable KCSAN for the current context
- *
- * Supports nesting.
- */
-void kcsan_enable_current(void);
-
#else /* CONFIG_KCSAN */
static inline void kcsan_init(void) { }
-static inline void kcsan_disable_current(void) { }
-static inline void kcsan_enable_current(void) { }
#endif /* CONFIG_KCSAN */
--
2.26.0.rc2.310.g2932bb562d-goog
next reply other threads:[~2020-03-31 19:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-31 19:32 Marco Elver [this message]
2020-03-31 19:32 ` [PATCH 2/2] kcsan: Change data_race() to no longer require marking racing accesses Marco Elver
2020-04-01 8:38 ` Will Deacon
2020-03-31 22:55 ` [PATCH 1/2] kcsan: Move kcsan_{disable,enable}_current() to kcsan-checks.h Paul E. McKenney
2020-04-01 8:40 ` Will Deacon
2020-04-01 16:37 ` Paul E. McKenney
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