[PATCH bpf-next] bpf: Remove set but not used variable 'first_key'
From: YueHaibing <hidden>
Date: 2020-01-17 01:38:24
Also in:
bpf, lkml
Subsystem:
bpf [core], bpf [general] (safe dynamic programs and tools), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
kernel/bpf/syscall.c: In function generic_map_lookup_batch: kernel/bpf/syscall.c:1339:7: warning: variable first_key set but not used [-Wunused-but-set-variable] It is never used, so remove it. Reported-by: Hulk Robot <redacted> Signed-off-by: YueHaibing <redacted> --- kernel/bpf/syscall.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 0d94d36..c26a714 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c@@ -1336,7 +1336,6 @@ int generic_map_lookup_batch(struct bpf_map *map, void *buf, *buf_prevkey, *prev_key, *key, *value; int err, retry = MAP_LOOKUP_RETRIES; u32 value_size, cp, max_count; - bool first_key = false; if (attr->batch.elem_flags & ~BPF_F_LOCK) return -EINVAL;
@@ -1365,7 +1364,6 @@ int generic_map_lookup_batch(struct bpf_map *map, } err = -EFAULT; - first_key = false; prev_key = NULL; if (ubatch && copy_from_user(buf_prevkey, ubatch, map->key_size)) goto free_buf;
--
2.7.4