* [PATCH v2] sample: bpf: syscall_tp_user: print result of verify_map
@ 2022-04-02 8:57 Song Chen
2022-04-04 21:50 ` patchwork-bot+netdevbpf
0 siblings, 1 reply; 2+ messages in thread
From: Song Chen @ 2022-04-02 8:57 UTC (permalink / raw)
To: ast, daniel, andrii, kafai, songliubraving, yhs, john.fastabend,
kpsingh, netdev, bpf, linux-kernel
Cc: Song Chen
At the end of the test, we already print out
prog <prog number>: map ids <...> <...>
Value is the number read from kernel through bpf map, further print out
verify map:<map id> val:<...>
will help users to understand the program runs successfully.
Signed-off-by: Song Chen <chensong_2000@189.cn>
---
samples/bpf/syscall_tp_user.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/samples/bpf/syscall_tp_user.c b/samples/bpf/syscall_tp_user.c
index a0ebf1833ed3..c55383068384 100644
--- a/samples/bpf/syscall_tp_user.c
+++ b/samples/bpf/syscall_tp_user.c
@@ -36,6 +36,9 @@ static void verify_map(int map_id)
fprintf(stderr, "failed: map #%d returns value 0\n", map_id);
return;
}
+
+ printf("verify map:%d val: %d\n", map_id, val);
+
val = 0;
if (bpf_map_update_elem(map_id, &key, &val, BPF_ANY) != 0) {
fprintf(stderr, "map_update failed: %s\n", strerror(errno));
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2] sample: bpf: syscall_tp_user: print result of verify_map
2022-04-02 8:57 [PATCH v2] sample: bpf: syscall_tp_user: print result of verify_map Song Chen
@ 2022-04-04 21:50 ` patchwork-bot+netdevbpf
0 siblings, 0 replies; 2+ messages in thread
From: patchwork-bot+netdevbpf @ 2022-04-04 21:50 UTC (permalink / raw)
To: Song Chen
Cc: ast, daniel, andrii, kafai, songliubraving, yhs, john.fastabend,
kpsingh, netdev, bpf, linux-kernel
Hello:
This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@kernel.org>:
On Sat, 2 Apr 2022 16:57:08 +0800 you wrote:
> At the end of the test, we already print out
> prog <prog number>: map ids <...> <...>
> Value is the number read from kernel through bpf map, further print out
> verify map:<map id> val:<...>
> will help users to understand the program runs successfully.
>
> Signed-off-by: Song Chen <chensong_2000@189.cn>
>
> [...]
Here is the summary with links:
- [v2] sample: bpf: syscall_tp_user: print result of verify_map
https://git.kernel.org/bpf/bpf-next/c/35f91d1fe106
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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2022-04-04 21:50 ` patchwork-bot+netdevbpf
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