kernel/trace/trace_dynevent.o: warning: objtool: trace_event_dyn_try_get_ref()+0x3d: unreachable instruction

kernel/trace/trace_dynevent.o: warning: objtool: trace_event_dyn_try_get_ref()+0x3d: unreachable instruction

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 2083 bytes --]

CC: linux-kernel@vger.kernel.org
TO: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   27151f177827d478508e756c7657273261aaf8a9
commit: 1d18538e6a09265003a0a94ca779d7a6127cb76c tracing: Have dynamic events have a ref counter
date:   3 weeks ago
config: x86_64-randconfig-r026-20210906 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6fe2beba7d2a41964af658c8c59dd172683ef739)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1d18538e6a09265003a0a94ca779d7a6127cb76c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 1d18538e6a09265003a0a94ca779d7a6127cb76c
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/boot/ arch/x86/entry/vdso/ arch/x86/kernel/apic/ arch/x86/kernel/cpu/ arch/x86/lib/ arch/x86/purgatory/ drivers/acpi/ drivers/fpga/ drivers/hwmon/ drivers/iio/adc/ drivers/iio/imu/inv_mpu6050/ drivers/iio/magnetometer/ drivers/iio/proximity/ drivers/input/keyboard/ drivers/leds/ drivers/media/dvb-core/ drivers/media/dvb-frontends/ drivers/mfd/ drivers/phy/marvell/ drivers/regulator/ drivers/rtc/ drivers/staging/pi433/ kernel/dma/ kernel/events/ kernel/sched/ kernel/trace/ lib/ mm/ sound/soc/fsl/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> kernel/trace/trace_dynevent.o: warning: objtool: trace_event_dyn_try_get_ref()+0x3d: unreachable instruction

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 34315 bytes --]

kernel/trace/trace_dynevent.o: warning: objtool: trace_event_dyn_try_get_ref()+0x3d: unreachable instruction

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 2117 bytes --]

CC: linux-kernel(a)vger.kernel.org
TO: "Steven Rostedt (VMware)" <rostedt@goodmis.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   27151f177827d478508e756c7657273261aaf8a9
commit: 1d18538e6a09265003a0a94ca779d7a6127cb76c tracing: Have dynamic events have a ref counter
date:   3 weeks ago
config: x86_64-randconfig-r026-20210906 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6fe2beba7d2a41964af658c8c59dd172683ef739)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1d18538e6a09265003a0a94ca779d7a6127cb76c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 1d18538e6a09265003a0a94ca779d7a6127cb76c
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/boot/ arch/x86/entry/vdso/ arch/x86/kernel/apic/ arch/x86/kernel/cpu/ arch/x86/lib/ arch/x86/purgatory/ drivers/acpi/ drivers/fpga/ drivers/hwmon/ drivers/iio/adc/ drivers/iio/imu/inv_mpu6050/ drivers/iio/magnetometer/ drivers/iio/proximity/ drivers/input/keyboard/ drivers/leds/ drivers/media/dvb-core/ drivers/media/dvb-frontends/ drivers/mfd/ drivers/phy/marvell/ drivers/regulator/ drivers/rtc/ drivers/staging/pi433/ kernel/dma/ kernel/events/ kernel/sched/ kernel/trace/ lib/ mm/ sound/soc/fsl/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> kernel/trace/trace_dynevent.o: warning: objtool: trace_event_dyn_try_get_ref()+0x3d: unreachable instruction

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 34315 bytes --]