[PATCH -rcu/kcsan 02/23] kcsan: Remove redundant zero-initialization of globals
From: Marco Elver <elver@google.com>
Date: 2021-10-05 10:59:54
Also in:
linux-doc, linux-kbuild, linux-mm, lkml
Subsystem:
kcsan, the rest · Maintainers:
Marco Elver, Linus Torvalds
They are implicitly zero-initialized, remove explicit initialization. It keeps the upcoming additions to kcsan_ctx consistent with the rest. No functional change intended. Signed-off-by: Marco Elver <elver@google.com> --- init/init_task.c | 9 +-------- kernel/kcsan/core.c | 5 ----- 2 files changed, 1 insertion(+), 13 deletions(-)
diff --git a/init/init_task.c b/init/init_task.c
index 2d024066e27b..61700365ce58 100644
--- a/init/init_task.c
+++ b/init/init_task.c@@ -181,14 +181,7 @@ struct task_struct init_task .kasan_depth = 1, #endif #ifdef CONFIG_KCSAN - .kcsan_ctx = { - .disable_count = 0, - .atomic_next = 0, - .atomic_nest_count = 0, - .in_flat_atomic = false, - .access_mask = 0, - .scoped_accesses = {LIST_POISON1, NULL}, - }, + .kcsan_ctx = { .scoped_accesses = {LIST_POISON1, NULL} }, #endif #ifdef CONFIG_TRACE_IRQFLAGS .softirqs_enabled = 1,
diff --git a/kernel/kcsan/core.c b/kernel/kcsan/core.c
index 6bfd3040f46b..e34a1710b7bc 100644
--- a/kernel/kcsan/core.c
+++ b/kernel/kcsan/core.c@@ -44,11 +44,6 @@ bool kcsan_enabled; /* Per-CPU kcsan_ctx for interrupts */ static DEFINE_PER_CPU(struct kcsan_ctx, kcsan_cpu_ctx) = { - .disable_count = 0, - .atomic_next = 0, - .atomic_nest_count = 0, - .in_flat_atomic = false, - .access_mask = 0, .scoped_accesses = {LIST_POISON1, NULL}, };
--
2.33.0.800.g4c38ced690-goog