2021-03-26 19:45:23

by Colin King

[permalink] [raw]
Subject: [PATCH] bpf: remove redundant assignment of variable id

From: Colin Ian King <[email protected]>

The variable id is being assigned a value that is never
read, the assignment is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <[email protected]>
---
kernel/bpf/btf.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 369faeddf1df..b22fb29347c0 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -789,7 +789,6 @@ static const struct btf_type *btf_type_skip_qualifiers(const struct btf *btf,

while (btf_type_is_modifier(t) &&
BTF_INFO_KIND(t->info) != BTF_KIND_TYPEDEF) {
- id = t->type;
t = btf_type_by_id(btf, t->type);
}

--
2.30.2


2021-03-26 20:20:29

by Song Liu

[permalink] [raw]
Subject: Re: [PATCH] bpf: remove redundant assignment of variable id

On Fri, Mar 26, 2021 at 12:45 PM Colin King <[email protected]> wrote:
>
> From: Colin Ian King <[email protected]>
>
> The variable id is being assigned a value that is never
> read, the assignment is redundant and can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <[email protected]>

Acked-by: Song Liu <[email protected]>

For future patches, please prefix it as [PATCH bpf-next] for
[PATCH bpf], based on which tree the patch should apply to.

> ---
> kernel/bpf/btf.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> index 369faeddf1df..b22fb29347c0 100644
> --- a/kernel/bpf/btf.c
> +++ b/kernel/bpf/btf.c
> @@ -789,7 +789,6 @@ static const struct btf_type *btf_type_skip_qualifiers(const struct btf *btf,
>
> while (btf_type_is_modifier(t) &&
> BTF_INFO_KIND(t->info) != BTF_KIND_TYPEDEF) {
> - id = t->type;
> t = btf_type_by_id(btf, t->type);
> }
>
> --
> 2.30.2
>

2021-03-29 05:58:25

by Dan Carpenter

[permalink] [raw]
Subject: Re: [PATCH] bpf: remove redundant assignment of variable id

On Fri, Mar 26, 2021 at 01:18:36PM -0700, Song Liu wrote:
> On Fri, Mar 26, 2021 at 12:45 PM Colin King <[email protected]> wrote:
> >
> > From: Colin Ian King <[email protected]>
> >
> > The variable id is being assigned a value that is never
> > read, the assignment is redundant and can be removed.
> >
> > Addresses-Coverity: ("Unused value")
> > Signed-off-by: Colin Ian King <[email protected]>
>
> Acked-by: Song Liu <[email protected]>
>
> For future patches, please prefix it as [PATCH bpf-next] for
> [PATCH bpf], based on which tree the patch should apply to.
>

You can keep asking us to do that but it's never going to happen... :P
I do this for networking but it's a massive pain in the butt and I get
it wrong 20% of the time.

regards,
dan carpenter

2021-03-30 21:12:11

by patchwork-bot+netdevbpf

[permalink] [raw]
Subject: Re: [PATCH] bpf: remove redundant assignment of variable id

Hello:

This patch was applied to bpf/bpf-next.git (refs/heads/master):

On Fri, 26 Mar 2021 19:43:48 +0000 you wrote:
> From: Colin Ian King <[email protected]>
>
> The variable id is being assigned a value that is never
> read, the assignment is redundant and can be removed.
>
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <[email protected]>
>
> [...]

Here is the summary with links:
- bpf: remove redundant assignment of variable id
https://git.kernel.org/bpf/bpf-next/c/235fc0e36d35

You are awesome, thank you!
--
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