[PATCH v3 02/25] kcsan: Remove redundant zero-initialization of globals
From: Marco Elver <elver@google.com>
Date: 2021-11-30 11:45:23
Also in:
linux-arch, linux-doc, linux-kbuild, linux-mm, llvm
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> Acked-by: Mark Rutland <mark.rutland@arm.com> --- v3: * Minimize diff by leaving "scoped_accesses" on its own line, which should also reduce diff of future changes. --- init/init_task.c | 5 ----- kernel/kcsan/core.c | 5 ----- 2 files changed, 10 deletions(-)
diff --git a/init/init_task.c b/init/init_task.c
index 2d024066e27b..73cc8f03511a 100644
--- a/init/init_task.c
+++ b/init/init_task.c@@ -182,11 +182,6 @@ struct task_struct init_task #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}, }, #endif
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}, };
--
2.34.0.rc2.393.gf8c9666880-goog