perf build failed on linux -next on i386 build

From: Naresh Kamboju
Date: Thu Sep 26 2019 - 13:29:56 EST


perf build failed on linux -next on i386 build

build error:
perf-in.o: In function `libunwind__x86_reg_id':
tools/perf/util/libunwind/../../arch/x86/util/unwind-libunwind.c:109:
undefined reference to `pr_err'
tools/perf/util/libunwind/../../arch/x86/util/unwind-libunwind.c:109:
undefined reference to `pr_err'

- Naresh