tools/testing/selftests/arm64/tags/.gitignore: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/Makefile: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/tags_test.c: warning: ignored by one of the .gitignore files
../net/ipv4/tcp_output.c:187:3: warning: result of comparison of constant -1 with expression of type 'u8' (aka 'unsigned char') is always false [-Wtautological-constant-out-of-range-compare]
  187 |                 NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPACKCOMPRESSED,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  188 |                               tp->compressed_ack);
      |                               ~~~~~~~~~~~~~~~~~~~
../include/net/ip.h:306:41: note: expanded from macro 'NET_ADD_STATS'
  306 | #define NET_ADD_STATS(net, field, adnd) SNMP_ADD_STATS((net)->mib.net_statistics, field, adnd)
      |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../include/net/snmp.h:143:4: note: expanded from macro 'SNMP_ADD_STATS'
  143 |                         this_cpu_add(mib->mibs[field], addend)
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../include/linux/percpu-defs.h:497:33: note: expanded from macro 'this_cpu_add'
  497 | #define this_cpu_add(pcp, val)          __pcpu_size_call(this_cpu_add_, pcp, val)
      |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
<scratch space>:75:1: note: expanded from here
   75 | this_cpu_add_8
      | ^
../arch/x86/include/asm/percpu.h:558:36: note: expanded from macro 'this_cpu_add_8'
  558 | #define this_cpu_add_8(pcp, val)                        percpu_add_op(8, volatile, (pcp), val)
      |                                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../arch/x86/include/asm/percpu.h:238:31: note: expanded from macro 'percpu_add_op'
  238 |                               ((val) == 1 || (val) == -1)) ?            \
      |                                              ~~~~~ ^  ~~
1 warning generated.
tools/testing/selftests/arm64/tags/.gitignore: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/Makefile: warning: ignored by one of the .gitignore files
tools/testing/selftests/arm64/tags/tags_test.c: warning: ignored by one of the .gitignore files
../net/ipv4/tcp_output.c:187:3: warning: result of comparison of constant -1 with expression of type 'u8' (aka 'unsigned char') is always false [-Wtautological-constant-out-of-range-compare]
  187 |                 NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPACKCOMPRESSED,
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  188 |                               tp->compressed_ack);
      |                               ~~~~~~~~~~~~~~~~~~~
../include/net/ip.h:306:41: note: expanded from macro 'NET_ADD_STATS'
  306 | #define NET_ADD_STATS(net, field, adnd) SNMP_ADD_STATS((net)->mib.net_statistics, field, adnd)
      |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../include/net/snmp.h:143:4: note: expanded from macro 'SNMP_ADD_STATS'
  143 |                         this_cpu_add(mib->mibs[field], addend)
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../include/linux/percpu-defs.h:497:33: note: expanded from macro 'this_cpu_add'
  497 | #define this_cpu_add(pcp, val)          __pcpu_size_call(this_cpu_add_, pcp, val)
      |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
<scratch space>:75:1: note: expanded from here
   75 | this_cpu_add_8
      | ^
../arch/x86/include/asm/percpu.h:558:36: note: expanded from macro 'this_cpu_add_8'
  558 | #define this_cpu_add_8(pcp, val)                        percpu_add_op(8, volatile, (pcp), val)
      |                                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../arch/x86/include/asm/percpu.h:238:31: note: expanded from macro 'percpu_add_op'
  238 |                               ((val) == 1 || (val) == -1)) ?            \
      |                                              ~~~~~ ^  ~~
1 warning generated.