The perf build failed on i386 on Linux next-20210519 and next-20210520 tag
 with gcc-7.3 due to below warnings / errors.

In file included from libbpf.c:55:0:
libbpf.c: In function 'init_map_slots':
libbpf_internal.h:102:22: error: format '%ld' expects argument of type
'long int', but argument 3 has type 'int' [-Werror=format=]
  libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__); \
                      ^
libbpf_internal.h:105:27: note: in expansion of macro '__pr'
 #define pr_warn(fmt, ...) __pr(LIBBPF_WARN, fmt, ##__VA_ARGS__)
                           ^~~~
libbpf.c:4568:4: note: in expansion of macro 'pr_warn'
    pr_warn("// TODO map_update_elem: idx %ld key %d value==map_idx %ld\n",
    ^~~~~~~
libbpf.c:4568:44: note: format string is defined here
    pr_warn("// TODO map_update_elem: idx %ld key %d value==map_idx %ld\n",
                                          ~~^
                                          %d
In file included from libbpf.c:55:0:
libbpf_internal.h:102:22: error: format '%ld' expects argument of type
'long int', but argument 5 has type 'int' [-Werror=format=]
  libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__); \
                      ^
libbpf_internal.h:105:27: note: in expansion of macro '__pr'
 #define pr_warn(fmt, ...) __pr(LIBBPF_WARN, fmt, ##__VA_ARGS__)
                           ^~~~
libbpf.c:4568:4: note: in expansion of macro 'pr_warn'
    pr_warn("// TODO map_update_elem: idx %ld key %d value==map_idx %ld\n",
    ^~~~~~~
libbpf.c:4568:70: note: format string is defined here
    pr_warn("// TODO map_update_elem: idx %ld key %d value==map_idx %ld\n",
                                                                    ~~^
                                                                    %d
  CC      /srv/oe/build/tmp-lkft-glibc/work/intel_core2_32-linaro-linux/perf/1.0-r9/perf-1.0/cpu.o
In file included from libbpf.c:55:0:
libbpf.c: In function 'bpf_core_apply_relo':
libbpf_internal.h:102:22: error: format '%ld' expects argument of type
'long int', but argument 3 has type 'int' [-Werror=format=]
  libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__); \
                      ^
libbpf_internal.h:105:27: note: in expansion of macro '__pr'
 #define pr_warn(fmt, ...) __pr(LIBBPF_WARN, fmt, ##__VA_ARGS__)
                           ^~~~
libbpf.c:6192:3: note: in expansion of macro 'pr_warn'
   pr_warn("// TODO core_relo: prog %ld insn[%d] %s %s kind %d\n",
   ^~~~~~~
libbpf.c:6192:38: note: format string is defined here
   pr_warn("// TODO core_relo: prog %ld insn[%d] %s %s kind %d\n",
                                    ~~^
                                    %d

Reported-by: Naresh Kamboju <redacted>

https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-next/DISTRO=lkft,MACHINE=intel-core2-32,label=docker-buster-lkft/1030/consoleText

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