tree: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next-test head: 5811244192fc4e18c001c69300044c2acf30bd91 commit: 2a06bf3e95cd93e3640d431960181b8e47415f33 [105/159] powerpc/64: context tracking remove _TIF_NOHZ config: powerpc-randconfig-r022-20210209 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id=2a06bf3e95cd93e3640d431960181b8e47415f33 git remote add powerpc https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git git fetch --no-tags powerpc next-test git checkout 2a06bf3e95cd93e3640d431960181b8e47415f33 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
All errors (new ones prefixed by >>):
>> arch/powerpc/kernel/syscall_64.c:177:28: error: unused function
>> 'prep_irq_for_enabled_exit' [-Werror,-Wunused-function]
static notrace inline bool prep_irq_for_enabled_exit(bool clear_ri, bool
irqs_enabled)
^
1 error generated.
vim +/prep_irq_for_enabled_exit +177 arch/powerpc/kernel/syscall_64.c
176
> 177 static notrace inline bool prep_irq_for_enabled_exit(bool clear_ri,
> bool irqs_enabled)
178 {
179 if (__prep_irq_for_enabled_exit(clear_ri))
180 return true;
181
182 /*
183 * Must replay pending soft-masked interrupts now. Don't just
184 * local_irq_enabe(); local_irq_disable(); because if we are
185 * returning from an asynchronous interrupt here, another one
186 * might hit after irqs are enabled, and it would exit via this
187 * same path allowing another to fire, and so on unbounded.
188 *
189 * If interrupts were enabled when this interrupt exited,
190 * indicating a process context (synchronous) interrupt,
191 * local_irq_enable/disable can be used, which will enable
192 * interrupts rather than keeping them masked (unclear how
193 * much benefit this is over just replaying for all cases,
194 * because we immediately disable again, so all we're really
195 * doing is allowing hard interrupts to execute directly for
196 * a very small time, rather than being masked and replayed).
197 */
198 if (irqs_enabled) {
199 local_irq_enable();
200 local_irq_disable();
201 } else {
202 replay_soft_interrupts();
203 }
204
205 return false;
206 }
207
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
