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| author | Wei Yongjun <weiyongjun1@huawei.com> | 2021-03-11 16:15:05 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-03-16 22:24:20 +0300 |
| commit | 4d0b93896ff8d6795ad8d1b604e41aa850d5a635 (patch) | |
| tree | c503ffa25f07113e1d2952771418f6dcbb20b23b /kernel/bpf/bpf_task_storage.c | |
| parent | 6bd45f2e78f31bde335f7720e570a07331031110 (diff) | |
| download | linux-4d0b93896ff8d6795ad8d1b604e41aa850d5a635.tar.xz | |
bpf: Make symbol 'bpf_task_storage_busy' static
The sparse tool complains as follows:
kernel/bpf/bpf_task_storage.c:23:1: warning:
symbol '__pcpu_scope_bpf_task_storage_busy' was not declared. Should it be static?
This symbol is not used outside of bpf_task_storage.c, so this
commit marks it static.
Fixes: bc235cdb423a ("bpf: Prevent deadlock from recursive bpf_task_storage_[get|delete]")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20210311131505.1901509-1-weiyongjun1@huawei.com
Diffstat (limited to 'kernel/bpf/bpf_task_storage.c')
| -rw-r--r-- | kernel/bpf/bpf_task_storage.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/bpf/bpf_task_storage.c b/kernel/bpf/bpf_task_storage.c index fd3c74ef608e..3ce75758d394 100644 --- a/kernel/bpf/bpf_task_storage.c +++ b/kernel/bpf/bpf_task_storage.c @@ -20,7 +20,7 @@ DEFINE_BPF_STORAGE_CACHE(task_cache); -DEFINE_PER_CPU(int, bpf_task_storage_busy); +static DEFINE_PER_CPU(int, bpf_task_storage_busy); static void bpf_task_storage_lock(void) { |