Re: [PATCH bpf-next v3 3/4] selftests/bpf: Use the correct destructor kfunc type

From: Yonghong Song
Date: Mon Jul 28 2025 - 19:09:18 EST




On 7/28/25 1:27 PM, Sami Tolvanen wrote:
With CONFIG_CFI_CLANG enabled, the kernel strictly enforces that
indirect function calls use a function pointer type that matches the
target function. As bpf_testmod_ctx_release() signature differs from
the btf_dtor_kfunc_t pointer type used for the destructor calls in
bpf_obj_free_fields(), add a stub function with the correct type to
fix the type mismatch.

Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx>

Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>