Re: [PATCH v1 22/24] LoongArch: KVM: Implement vcpu world switch

From: kernel test robot
Date: Tue Feb 14 2023 - 02:12:29 EST


Hi Tianrui,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on kvm/queue]
[also build test WARNING on linus/master v6.2-rc8]
[cannot apply to kvm/linux-next next-20230214]
[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#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Tianrui-Zhao/LoongArch-KVM-Implement-kvm-module-related-interface/20230214-110506
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
patch link: https://lore.kernel.org/r/20230214025648.1898508-23-zhaotianrui%40loongson.cn
patch subject: [PATCH v1 22/24] LoongArch: KVM: Implement vcpu world switch
config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20230214/202302141408.1hBkpMAf-lkp@xxxxxxxxx/config)
compiler: loongarch64-linux-gcc (GCC) 12.1.0
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://github.com/intel-lab-lkp/linux/commit/1adfa2faabc606d0813446b2d2111e04aa3d2828
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Tianrui-Zhao/LoongArch-KVM-Implement-kvm-module-related-interface/20230214-110506
git checkout 1adfa2faabc606d0813446b2d2111e04aa3d2828
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch prepare

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302141408.1hBkpMAf-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

arch/loongarch/kernel/asm-offsets.c:17:6: warning: no previous prototype for 'output_ptreg_defines' [-Wmissing-prototypes]
17 | void output_ptreg_defines(void)
| ^~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:64:6: warning: no previous prototype for 'output_task_defines' [-Wmissing-prototypes]
64 | void output_task_defines(void)
| ^~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:79:6: warning: no previous prototype for 'output_thread_info_defines' [-Wmissing-prototypes]
79 | void output_thread_info_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:95:6: warning: no previous prototype for 'output_thread_defines' [-Wmissing-prototypes]
95 | void output_thread_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:138:6: warning: no previous prototype for 'output_thread_fpu_defines' [-Wmissing-prototypes]
138 | void output_thread_fpu_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:178:6: warning: no previous prototype for 'output_mm_defines' [-Wmissing-prototypes]
178 | void output_mm_defines(void)
| ^~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:210:6: warning: no previous prototype for 'output_sc_defines' [-Wmissing-prototypes]
210 | void output_sc_defines(void)
| ^~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:218:6: warning: no previous prototype for 'output_signal_defines' [-Wmissing-prototypes]
218 | void output_signal_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:256:6: warning: no previous prototype for 'output_smpboot_defines' [-Wmissing-prototypes]
256 | void output_smpboot_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:266:6: warning: no previous prototype for 'output_pbe_defines' [-Wmissing-prototypes]
266 | void output_pbe_defines(void)
| ^~~~~~~~~~~~~~~~~~
>> arch/loongarch/kernel/asm-offsets.c:277:6: warning: no previous prototype for 'output_kvm_defines' [-Wmissing-prototypes]
277 | void output_kvm_defines(void)
| ^~~~~~~~~~~~~~~~~~
--
arch/loongarch/kernel/asm-offsets.c:17:6: warning: no previous prototype for 'output_ptreg_defines' [-Wmissing-prototypes]
17 | void output_ptreg_defines(void)
| ^~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:64:6: warning: no previous prototype for 'output_task_defines' [-Wmissing-prototypes]
64 | void output_task_defines(void)
| ^~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:79:6: warning: no previous prototype for 'output_thread_info_defines' [-Wmissing-prototypes]
79 | void output_thread_info_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:95:6: warning: no previous prototype for 'output_thread_defines' [-Wmissing-prototypes]
95 | void output_thread_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:138:6: warning: no previous prototype for 'output_thread_fpu_defines' [-Wmissing-prototypes]
138 | void output_thread_fpu_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:178:6: warning: no previous prototype for 'output_mm_defines' [-Wmissing-prototypes]
178 | void output_mm_defines(void)
| ^~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:210:6: warning: no previous prototype for 'output_sc_defines' [-Wmissing-prototypes]
210 | void output_sc_defines(void)
| ^~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:218:6: warning: no previous prototype for 'output_signal_defines' [-Wmissing-prototypes]
218 | void output_signal_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:256:6: warning: no previous prototype for 'output_smpboot_defines' [-Wmissing-prototypes]
256 | void output_smpboot_defines(void)
| ^~~~~~~~~~~~~~~~~~~~~~
arch/loongarch/kernel/asm-offsets.c:266:6: warning: no previous prototype for 'output_pbe_defines' [-Wmissing-prototypes]
266 | void output_pbe_defines(void)
| ^~~~~~~~~~~~~~~~~~
>> arch/loongarch/kernel/asm-offsets.c:277:6: warning: no previous prototype for 'output_kvm_defines' [-Wmissing-prototypes]
277 | void output_kvm_defines(void)
| ^~~~~~~~~~~~~~~~~~
<stdin>:569:2: warning: #warning syscall fstat not implemented [-Wcpp]


vim +/output_kvm_defines +277 arch/loongarch/kernel/asm-offsets.c

217
> 218 void output_signal_defines(void)
219 {
220 COMMENT("Linux signal numbers.");
221 DEFINE(_SIGHUP, SIGHUP);
222 DEFINE(_SIGINT, SIGINT);
223 DEFINE(_SIGQUIT, SIGQUIT);
224 DEFINE(_SIGILL, SIGILL);
225 DEFINE(_SIGTRAP, SIGTRAP);
226 DEFINE(_SIGIOT, SIGIOT);
227 DEFINE(_SIGABRT, SIGABRT);
228 DEFINE(_SIGFPE, SIGFPE);
229 DEFINE(_SIGKILL, SIGKILL);
230 DEFINE(_SIGBUS, SIGBUS);
231 DEFINE(_SIGSEGV, SIGSEGV);
232 DEFINE(_SIGSYS, SIGSYS);
233 DEFINE(_SIGPIPE, SIGPIPE);
234 DEFINE(_SIGALRM, SIGALRM);
235 DEFINE(_SIGTERM, SIGTERM);
236 DEFINE(_SIGUSR1, SIGUSR1);
237 DEFINE(_SIGUSR2, SIGUSR2);
238 DEFINE(_SIGCHLD, SIGCHLD);
239 DEFINE(_SIGPWR, SIGPWR);
240 DEFINE(_SIGWINCH, SIGWINCH);
241 DEFINE(_SIGURG, SIGURG);
242 DEFINE(_SIGIO, SIGIO);
243 DEFINE(_SIGSTOP, SIGSTOP);
244 DEFINE(_SIGTSTP, SIGTSTP);
245 DEFINE(_SIGCONT, SIGCONT);
246 DEFINE(_SIGTTIN, SIGTTIN);
247 DEFINE(_SIGTTOU, SIGTTOU);
248 DEFINE(_SIGVTALRM, SIGVTALRM);
249 DEFINE(_SIGPROF, SIGPROF);
250 DEFINE(_SIGXCPU, SIGXCPU);
251 DEFINE(_SIGXFSZ, SIGXFSZ);
252 BLANK();
253 }
254
255 #ifdef CONFIG_SMP
256 void output_smpboot_defines(void)
257 {
258 COMMENT("Linux smp cpu boot offsets.");
259 OFFSET(CPU_BOOT_STACK, secondary_data, stack);
260 OFFSET(CPU_BOOT_TINFO, secondary_data, thread_info);
261 BLANK();
262 }
263 #endif
264
265 #ifdef CONFIG_HIBERNATION
266 void output_pbe_defines(void)
267 {
268 COMMENT(" Linux struct pbe offsets. ");
269 OFFSET(PBE_ADDRESS, pbe, address);
270 OFFSET(PBE_ORIG_ADDRESS, pbe, orig_address);
271 OFFSET(PBE_NEXT, pbe, next);
272 DEFINE(PBE_SIZE, sizeof(struct pbe));
273 BLANK();
274 }
275 #endif
276
> 277 void output_kvm_defines(void)

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https://github.com/intel/lkp-tests