[dborkman:pr/bpf-tracing 2/2] kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_unspec' not handled in switch

[dborkman:pr/bpf-tracing 2/2] kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_unspec' not handled in switch

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git pr/bpf-tracing
head:   7cd06ff47d15b389e9202feb7fcfe8328791659f
commit: 7cd06ff47d15b389e9202feb7fcfe8328791659f [2/2] bpf: add probe_read_{user,kernel} and probe_read_str_{user,kernel} helpers
config: x86_64-lkp (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
        git checkout 7cd06ff47d15b389e9202feb7fcfe8328791659f
        # save the attached .config to linux build tree
        make ARCH=x86_64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   kernel/trace/bpf_trace.c: In function 'tracing_func_check_warn':
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_unspec' not handled in switch [-Wswitch]
     switch (func_id) {
     ^~~~~~
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_map_lookup_elem' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_map_update_elem' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_map_delete_elem' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_ktime_get_ns' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_trace_printk' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_get_prandom_u32' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_get_smp_processor_id' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_skb_store_bytes' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_l3_csum_replace' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_l4_csum_replace' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_tail_call' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_clone_redirect' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_get_current_pid_tgid' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_get_current_uid_gid' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_get_current_comm' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_get_cgroup_classid' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_skb_vlan_push' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_skb_vlan_pop' not handled in switch [-Wswitch]
>> kernel/trace/bpf_trace.c:719:2: warning: enumeration value 'BPF_FUNC_skb_get_tunnel_key' not handled in switch [-Wswitch]

vim +/BPF_FUNC_unspec +719 kernel/trace/bpf_trace.c

   716	
   717	static void tracing_func_check_warn(enum bpf_func_id func_id)
   718	{
 > 719		switch (func_id) {
   720		case BPF_FUNC_probe_write_user:
   721			pr_warn_ratelimited("%s[%d] is installing a program with %s() helper that may corrupt user memory!",
   722					    current->comm, task_pid_nr(current),
   723					    bpf_func_id_str[func_id]);
   724			break;
   725		case BPF_FUNC_probe_read:
   726		case BPF_FUNC_probe_read_str:
   727			pr_warn_ratelimited("%s[%d] is installing a program with %s() helper which is deprecated. Use %s_user() or %s_kernel() instead!",
   728					    current->comm, task_pid_nr(current),
   729					    bpf_func_id_str[func_id],
   730					    bpf_func_id_str[func_id],
   731					    bpf_func_id_str[func_id]);
   732			break;
   733		}
   734	}
   735	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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