Re: [PATCH bpf-next v2 1/4] bpf: crypto: Use the correct destructor kfunc type

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On Fri, Jul 25, 2025 at 04:11:27PM -0700, Yonghong Song wrote:
> 
> Okay, looks like Peter has made similar changes before.
> See https://lore.kernel.org/all/20231215092707.799451071@xxxxxxxxxxxxx/
> 
> To be consistent with existing code base, I think the following
> change is better:
> 
> diff --git a/kernel/bpf/crypto.c b/kernel/bpf/crypto.c
> index 94854cd9c4cc..a267d9087d40 100644
> --- a/kernel/bpf/crypto.c
> +++ b/kernel/bpf/crypto.c
> @@ -261,6 +261,12 @@ __bpf_kfunc void bpf_crypto_ctx_release(struct bpf_crypto_ctx *ctx)
>                 call_rcu(&ctx->rcu, crypto_free_cb);
>  }
> +__bpf_kfunc void bpf_crypto_ctx_release_dtor(void *ctx)
> +{
> +       bpf_crypto_ctx_release(ctx);
> +}
> +CFI_NOSEAL(bpf_crypto_ctx_release_dtor);
> +
>  static int bpf_crypto_crypt(const struct bpf_crypto_ctx *ctx,
>                             const struct bpf_dynptr_kern *src,
>                             const struct bpf_dynptr_kern *dst,
> @@ -368,7 +374,7 @@ static const struct btf_kfunc_id_set crypt_kfunc_set = {
>  BTF_ID_LIST(bpf_crypto_dtor_ids)
>  BTF_ID(struct, bpf_crypto_ctx)
> -BTF_ID(func, bpf_crypto_ctx_release)
> +BTF_ID(func, bpf_crypto_ctx_release_dtor)
>  static int __init crypto_kfunc_init(void)
>  {
> 
> The same code pattern can be done for patch 2 and patch 3.

Sure, I'll update the patches and send v3.

Sami




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