[avpatel:riscv_kvm_aia_v1 22/44] arch/riscv/kernel/smp.c:175:50: sparse: sparse: incorrect type in argument 4 (different address spaces)

From: kernel test robot
Date: Tue Aug 24 2021 - 10:29:51 EST


tree: https://github.com/avpatel/linux.git riscv_kvm_aia_v1
head: 9403342901c3b7c2036215af341d2423a6ecd8d0
commit: b558ac643cf43938bfd21643ec02336eb045ebae [22/44] RISC-V: Treat IPIs as normal Linux IRQs
config: riscv-randconfig-s032-20210824 (attached as .config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-348-gf0e6938b-dirty
# https://github.com/avpatel/linux/commit/b558ac643cf43938bfd21643ec02336eb045ebae
git remote add avpatel https://github.com/avpatel/linux.git
git fetch --no-tags avpatel riscv_kvm_aia_v1
git checkout b558ac643cf43938bfd21643ec02336eb045ebae
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv

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


sparse warnings: (new ones prefixed by >>)
>> arch/riscv/kernel/smp.c:175:50: sparse: sparse: incorrect type in argument 4 (different address spaces) @@ expected void [noderef] __percpu *percpu_dev_id @@ got int * @@
arch/riscv/kernel/smp.c:175:50: sparse: expected void [noderef] __percpu *percpu_dev_id
arch/riscv/kernel/smp.c:175:50: sparse: got int *

vim +175 arch/riscv/kernel/smp.c

157
158 void riscv_ipi_setup(void)
159 {
160 int i, err;
161
162 /* SBI based IPIs is our last option */
163 if (!ipi_virq_base)
164 sbi_ipi_init();
165
166 /* If still don't have IPIs then do nothing */
167 if (!ipi_virq_base) {
168 pr_info("SMP: IPIs not available\n");
169 return;
170 }
171
172 /* Request IPIs */
173 for (i = 0; i < nr_ipi; i++) {
174 err = request_percpu_irq(ipi_virq_base + i, handle_IPI,
> 175 "IPI", &ipi_virq_base);
176 WARN_ON(err);
177
178 ipi_desc[i] = irq_to_desc(ipi_virq_base + i);
179 irq_set_status_flags(ipi_virq_base + i, IRQ_HIDDEN);
180 }
181
182 /* Enabled IPIs for boot CPU immediately */
183 riscv_ipi_enable();
184 }
185

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

Attachment: .config.gz
Description: application/gzip