* Re: [PATCH v2 2/4] coresight: etm4x: Don't use virtual contextID for non-root PID namespace
[not found] <20211213121323.1887180-3-leo.yan@linaro.org>
@ 2021-12-13 19:47 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-12-13 19:47 UTC (permalink / raw)
To: Leo Yan, Mathieu Poirier, Suzuki K Poulose, Mike Leach,
Alexander Shishkin, coresight, linux-arm-kernel, linux-kernel
Cc: llvm, kbuild-all, Leo Yan
Hi Leo,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.16-rc5]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Leo-Yan/coresight-etm-Correct-PID-tracing-for-non-root-namespace/20211213-201632
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2585cf9dfaaddf00b069673f27bb3f8530e2039c
config: arm64-randconfig-r034-20211213 (https://download.01.org/0day-ci/archive/20211214/202112140333.58pdbVRp-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c)
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
# https://github.com/0day-ci/linux/commit/3b7eceb25155c98432dea4821c4fc571b44d72e3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Leo-Yan/coresight-etm-Correct-PID-tracing-for-non-root-namespace/20211213-201632
git checkout 3b7eceb25155c98432dea4821c4fc571b44d72e3
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/hwtracing/coresight/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> drivers/hwtracing/coresight/coresight-etm4x-sysfs.c:2118:7: error: implicit declaration of function 'task_is_in_init_pid_ns' [-Werror,-Wimplicit-function-declaration]
if (!task_is_in_init_pid_ns(current))
^
drivers/hwtracing/coresight/coresight-etm4x-sysfs.c:2139:7: error: implicit declaration of function 'task_is_in_init_pid_ns' [-Werror,-Wimplicit-function-declaration]
if (!task_is_in_init_pid_ns(current))
^
drivers/hwtracing/coresight/coresight-etm4x-sysfs.c:2169:7: error: implicit declaration of function 'task_is_in_init_pid_ns' [-Werror,-Wimplicit-function-declaration]
if (!task_is_in_init_pid_ns(current))
^
drivers/hwtracing/coresight/coresight-etm4x-sysfs.c:2193:7: error: implicit declaration of function 'task_is_in_init_pid_ns' [-Werror,-Wimplicit-function-declaration]
if (!task_is_in_init_pid_ns(current))
^
4 errors generated.
vim +/task_is_in_init_pid_ns +2118 drivers/hwtracing/coresight/coresight-etm4x-sysfs.c
2105
2106 static ssize_t vmid_val_show(struct device *dev,
2107 struct device_attribute *attr,
2108 char *buf)
2109 {
2110 unsigned long val;
2111 struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
2112 struct etmv4_config *config = &drvdata->config;
2113
2114 /*
2115 * Don't use virtual contextID tracing if coming from a PID namespace.
2116 * See comment in ctxid_pid_store().
2117 */
> 2118 if (!task_is_in_init_pid_ns(current))
2119 return -EINVAL;
2120
2121 spin_lock(&drvdata->spinlock);
2122 val = (unsigned long)config->vmid_val[config->vmid_idx];
2123 spin_unlock(&drvdata->spinlock);
2124 return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
2125 }
2126
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
^ permalink raw reply [flat|nested] only message in thread