Warnings before patch:
files: ['kernel/trace/bpf_trace.c', 'arch/arm64/include/asm/ftrace.h', 'include/linux/ftrace.h']
Warning: include/linux/ftrace.h:870 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:912 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:937 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:967 No description found for return value of 'ftrace_modify_call'

Current warnings:
files: ['kernel/trace/bpf_trace.c', 'arch/arm64/include/asm/ftrace.h', 'include/linux/ftrace.h']
Warning: include/linux/ftrace.h:873 No description found for return value of 'ftrace_make_nop'
Warning: include/linux/ftrace.h:915 No description found for return value of 'ftrace_init_nop'
Warning: include/linux/ftrace.h:940 No description found for return value of 'ftrace_make_call'
Warning: include/linux/ftrace.h:970 No description found for return value of 'ftrace_modify_call'

Warnings before: 4 after: 4