coresight-etm4x-core.c:969:26: error: 'ID_AA64DFR0_TRACEVER_SHIFT' undeclared

From: Naresh Kamboju
Date: Tue Sep 20 2022 - 07:40:15 EST


Following build warnings / errors noticed while building arm64 coresight
on linux next-20220919 and next-20220920.

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

make --silent --keep-going --jobs=8
O=/home/tuxbuild/.cache/tuxmake/builds/1/build
CROSS_COMPILE_COMPAT=arm-linux-gnueabihf- ARCH=arm64
CROSS_COMPILE=aarch64-linux-gnu- 'CC=sccache aarch64-linux-gnu-gcc'
'HOSTCC=sccache gcc'

drivers/hwtracing/coresight/coresight-etm4x-core.c: In function
'cpu_supports_sysreg_trace':
drivers/hwtracing/coresight/coresight-etm4x-core.c:969:26: error:
'ID_AA64DFR0_TRACEVER_SHIFT' undeclared (first use in this function);
did you mean 'ID_AA64DFR0_EL1_TraceVer_SHIFT'?
969 | return ((dfr0 >> ID_AA64DFR0_TRACEVER_SHIFT) & 0xfUL) > 0;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
| ID_AA64DFR0_EL1_TraceVer_SHIFT
drivers/hwtracing/coresight/coresight-etm4x-core.c:969:26: note: each
undeclared identifier is reported only once for each function it
appears in
drivers/hwtracing/coresight/coresight-etm4x-core.c: In function
'cpu_detect_trace_filtering':
drivers/hwtracing/coresight/coresight-etm4x-core.c:1057:57: error:
'ID_AA64DFR0_TRACE_FILT_SHIFT' undeclared (first use in this
function); did you mean 'ID_AA64PFR0_EL1_DIT_SHIFT'?
1057 | if (!cpuid_feature_extract_unsigned_field(dfr0,
ID_AA64DFR0_TRACE_FILT_SHIFT))
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
ID_AA64PFR0_EL1_DIT_SHIFT
drivers/hwtracing/coresight/coresight-etm4x-core.c: In function
'cpu_supports_sysreg_trace':
drivers/hwtracing/coresight/coresight-etm4x-core.c:970:1: error:
control reaches end of non-void function [-Werror=return-type]
970 | }
| ^
cc1: some warnings being treated as errors

Regressions found on arm64:
- build-clang-13-lkftconfig
- build-gcc-11-lkftconfig-devicetree
- build-gcc-11-lkftconfig-kunit
- build-gcc-11-lkftconfig-perf
- build-gcc-11-lkftconfig-64k_page_size
- build-gcc-11-lkftconfig-debug
- build-gcc-11-lkftconfig-libgpiod
- build-gcc-11-lkftconfig-debug-kmemleak
- build-clang-14-lkftconfig
- build-clang-nightly-lkftconfig
- build-gcc-11-lkftconfig
- build-gcc-11-lkftconfig-kasan
- build-clang-12-lkftconfig
- build-gcc-11-lkftconfig-kselftest-kernel
- build-gcc-11-lkftconfig-rcutorture
- build-gcc-11-lkftconfig-armv8_features
- build-gcc-11-lkftconfig-kselftest

Build: https://builds.tuxbuild.com/2F1cW8NpQ0Z6l9h9rfkZT5AXzqg/
config: https://builds.tuxbuild.com/2F1cW8NpQ0Z6l9h9rfkZT5AXzqg/config


--
Linaro LKFT
https://lkft.linaro.org