[PATCH bpf-next v2] bpf/btf: Use kvmemdup to simplify the code

[PATCH bpf-next v2] bpf/btf: Use kvmemdup to simplify the code

[Hongbo Li]

Use kvmemdup instead of kvmalloc() + memcpy() to simplify the
code.

No functional change intended.

Acked-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
---
v2:
  - Change the subject-prefix and add acked-by.

v1: https://lore.kernel.org/bpf/20240827112904.4017810-1-lihongbo22@huawei.com/T/
---
 kernel/bpf/btf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 9d6f9924eca7..cbbc1c2bc62e 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6238,12 +6238,11 @@ static struct btf *btf_parse_module(const char *module_name, const void *data,
 	btf->kernel_btf = true;
 	snprintf(btf->name, sizeof(btf->name), "%s", module_name);
 
-	btf->data = kvmalloc(data_size, GFP_KERNEL | __GFP_NOWARN);
+	btf->data = kvmemdup(data, data_size, GFP_KERNEL | __GFP_NOWARN);
 	if (!btf->data) {
 		err = -ENOMEM;
 		goto errout;
 	}
-	memcpy(btf->data, data, data_size);
 	btf->data_size = data_size;
 
 	err = btf_parse_hdr(env);
-- 
2.34.1

Re: [PATCH bpf-next v2] bpf/btf: Use kvmemdup to simplify the code

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:

On Wed, 28 Aug 2024 14:21:28 +0800 you wrote:
> Use kvmemdup instead of kvmalloc() + memcpy() to simplify the
> code.
> 
> No functional change intended.
> 
> Acked-by: Yonghong Song <yonghong.song@linux.dev>
> Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2] bpf/btf: Use kvmemdup to simplify the code
    https://git.kernel.org/bpf/bpf-next/c/c6d9dafb5955

You are awesome, thank you!
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