diff mbox series

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

Message ID 20240827112904.4017810-1-lihongbo22@huawei.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series [-next] bpf/btf: Use kvmemdup to simplify the code | expand

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Commit Message

Hongbo Li Aug. 27, 2024, 11:29 a.m. UTC 
Use kvmemdup instead of kvmalloc() + memcpy() to simplify the
code.

No functional change intended.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
---
 kernel/bpf/btf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Yonghong Song Aug. 27, 2024, 8:42 p.m. UTC | #1 
On 8/27/24 4:29 AM, Hongbo Li wrote:
> Use kvmemdup instead of kvmalloc() + memcpy() to simplify the
> code.
>
> No functional change intended.
>
> Signed-off-by: Hongbo Li <lihongbo22@huawei.com>

For subject, please use [PATH bpf-next] instead of [PATH -next].
Other than this, LGTM.

Acked-by: Yonghong Song <yonghong.song@linux.dev>
diff mbox series

Patch

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);