[bpf-next,v2] bpf: bpf_struct_ops: Remove unnecessary initial values of variables

Message ID 20230804175929.2867-1-kunyu@nfschina.com
State New
Headers
Series [bpf-next,v2] bpf: bpf_struct_ops: Remove unnecessary initial values of variables |

Commit Message

Li kunyu Aug. 4, 2023, 5:59 p.m. UTC
  err and tlinks is assigned first, so it does not need to initialize the
assignment.

Signed-off-by: Li kunyu <kunyu@nfschina.com>
---
 v2:
   Remove tlinks initialization assignment.

 kernel/bpf/bpf_struct_ops.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
  

Comments

Simon Horman Aug. 3, 2023, 12:08 p.m. UTC | #1
On Sat, Aug 05, 2023 at 01:59:29AM +0800, Li kunyu wrote:
> err and tlinks is assigned first, so it does not need to initialize the
> assignment.
> 
> Signed-off-by: Li kunyu <kunyu@nfschina.com>

Reviewed-by: Simon Horman <horms@kernel.org>
  
patchwork-bot+netdevbpf@kernel.org Aug. 4, 2023, 1:10 a.m. UTC | #2
Hello:

This patch was applied to bpf/bpf-next.git (master)
by Martin KaFai Lau <martin.lau@kernel.org>:

On Sat,  5 Aug 2023 01:59:29 +0800 you wrote:
> err and tlinks is assigned first, so it does not need to initialize the
> assignment.
> 
> Signed-off-by: Li kunyu <kunyu@nfschina.com>
> ---
>  v2:
>    Remove tlinks initialization assignment.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2] bpf: bpf_struct_ops: Remove unnecessary initial values of variables
    https://git.kernel.org/bpf/bpf-next/c/5964d1e4594e

You are awesome, thank you!
  

Patch

diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index d3f0a4825fa6..c05585ed1f37 100644
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -374,9 +374,9 @@  static long bpf_struct_ops_map_update_elem(struct bpf_map *map, void *key,
 	struct bpf_struct_ops_value *uvalue, *kvalue;
 	const struct btf_member *member;
 	const struct btf_type *t = st_ops->type;
-	struct bpf_tramp_links *tlinks = NULL;
+	struct bpf_tramp_links *tlinks;
 	void *udata, *kdata;
-	int prog_fd, err = 0;
+	int prog_fd, err;
 	void *image, *image_end;
 	u32 i;
 
@@ -818,7 +818,7 @@  static int bpf_struct_ops_map_link_update(struct bpf_link *link, struct bpf_map
 	struct bpf_struct_ops_map *st_map, *old_st_map;
 	struct bpf_map *old_map;
 	struct bpf_struct_ops_link *st_link;
-	int err = 0;
+	int err;
 
 	st_link = container_of(link, struct bpf_struct_ops_link, link);
 	st_map = container_of(new_map, struct bpf_struct_ops_map, map);