12:57 p.m.
tree: https://android.googlesource.com/kernel/common android12-5.10
head: 04dc43bd986e351d3e20fe41ceb3d56499b7c422
commit: 82ce4a8af88d25d3f75de6e8437de3d2f049cac3 [51/57] FROMLIST: coresight: ete: Add
support for ETE sysreg access
config: arm64-randconfig-r001-20210414 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
6a18cc23efad410db48a3ccfc233d215de7d4cb9)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
git remote add android-common https://android.googlesource.com/kernel/common
git fetch --no-tags android-common android12-5.10
git checkout 82ce4a8af88d25d3f75de6e8437de3d2f049cac3
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
> drivers/hwtracing/coresight/coresight-etm4x-core.c:118:5:
warning: no previous prototype for function 'ete_sysreg_read'
[-Wmissing-prototypes]
u64 ete_sysreg_read(u32 offset, bool _relaxed, bool
_64bit)
^
drivers/hwtracing/coresight/coresight-etm4x-core.c:118:1: note: declare
'static' if the function is not intended to be used outside of this translation
unit
u64 ete_sysreg_read(u32 offset, bool _relaxed, bool _64bit)
^
static
> drivers/hwtracing/coresight/coresight-etm4x-core.c:135:6:
warning: no previous prototype for function 'ete_sysreg_write'
[-Wmissing-prototypes]
void ete_sysreg_write(u64 val, u32 offset, bool _relaxed,
bool _64bit)
^
drivers/hwtracing/coresight/coresight-etm4x-core.c:135:1: note: declare
'static' if the function is not intended to be used outside of this translation
unit
void ete_sysreg_write(u64 val, u32 offset, bool _relaxed, bool _64bit)
^
static
2 warnings generated.
vim +/ete_sysreg_read +118 drivers/hwtracing/coresight/coresight-etm4x-core.c
117
118 u64 ete_sysreg_read(u32 offset, bool _relaxed, bool _64bit)
119 {
120 u64 res = 0;
121
122 switch (offset) {
123 ETE_READ_CASES(res)
124 default :
125 pr_warn_ratelimited("ete: trying to read unsupported register @%x\n",
126 offset);
127 }
128
129 if (!_relaxed)
130 __iormb(res); /* Imitate the !relaxed I/O helpers */
131
132 return res;
133 }
134
135 void ete_sysreg_write(u64 val, u32 offset, bool _relaxed, bool
_64bit)
136 {
137 if (!_relaxed)
138 __iowmb(); /* Imitate the !relaxed I/O helpers */
139 if (!_64bit)
140 val &= GENMASK(31, 0);
141
142 switch (offset) {
143 ETE_WRITE_CASES(val)
144 default :
145 pr_warn_ratelimited("ete: trying to write to unsupported register
@%x\n",
146 offset);
147 }
148 }
149
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org