lkml.org 
[lkml]   [2021]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    Subject[PATCH v2 02/23] kcsan: Remove redundant zero-initialization of globals
    From
    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},
    };

    --
    2.34.0.rc2.393.gf8c9666880-goog
    \
     
     \ /
      Last update: 2021-11-18 09:11    [W:4.574 / U:0.400 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site