Warnings before patch:
files: ['tools/lib/bpf/features.c', 'tools/lib/bpf/libbpf_internal.h']
<parse fail>: * @brief **libbpf_errstr()** returns string corresponding to numeric errno
Warning: tools/lib/bpf/libbpf_internal.h:177 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * @brief **libbpf_errstr()** returns string corresponding to numeric errno

Current warnings:
files: ['tools/lib/bpf/features.c', 'tools/lib/bpf/libbpf_internal.h']
<parse fail>: * @brief **libbpf_errstr()** returns string corresponding to numeric errno
Warning: tools/lib/bpf/libbpf_internal.h:177 This comment starts with '/**', but isn't a kernel-doc comment. Refer to Documentation/doc-guide/kernel-doc.rst
 * @brief **libbpf_errstr()** returns string corresponding to numeric errno

Warnings before: 2 after: 2