drivers/clocksource/timer-clint.c:237:36: sparse: sparse: incorrect type in argument 2 (different address spaces)

kernel test robot
2023-02-08T22:36:28Z

Hi Aurelien,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0983f6bf2bfc0789b51ddf7315f644ff4da50acb
commit: 6df2a016c0c8a3d0933ef33dd192ea6606b115e3 riscv: fix build with binutils 2.38
date: 12 months ago
config: riscv-randconfig-s052-20230209 (https://download.01.org/0day-ci/archive/20230209/202302090640.TTyRdnHU-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 12.1.0
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: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6df2a016c0c8a3d0933ef33dd192ea6606b115e3
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6df2a016c0c8a3d0933ef33dd192ea6606b115e3
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash drivers/clocksource/ drivers/scsi/esas2r/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302090640.TTyRdnHU-lkp@intel.com

sparse warnings: (new ones prefixed by >>)
>> drivers/clocksource/timer-clint.c:237:36: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void * @@ got struct clock_event_device [noderef] __percpu * @@
drivers/clocksource/timer-clint.c:237:36: sparse: expected void *
drivers/clocksource/timer-clint.c:237:36: sparse: got struct clock_event_device [noderef] __percpu *
--
drivers/scsi/esas2r/esas2r_ioctl.c:321:23: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:322:23: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:333:25: sparse: sparse: cast to restricted __le16
drivers/scsi/esas2r/esas2r_ioctl.c:334:29: sparse: sparse: invalid assignment: |=
drivers/scsi/esas2r/esas2r_ioctl.c:334:29: sparse: left side has type unsigned int
drivers/scsi/esas2r/esas2r_ioctl.c:334:29: sparse: right side has type restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:355:31: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] ctrl_code @@ got restricted __le32 [usertype] @@
drivers/scsi/esas2r/esas2r_ioctl.c:355:31: sparse: expected unsigned int [usertype] ctrl_code
drivers/scsi/esas2r/esas2r_ioctl.c:355:31: sparse: got restricted __le32 [usertype]
drivers/scsi/esas2r/esas2r_ioctl.c:356:31: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] target_id @@ got restricted __le16 [usertype] @@
drivers/scsi/esas2r/esas2r_ioctl.c:356:31: sparse: expected unsigned short [usertype] target_id
drivers/scsi/esas2r/esas2r_ioctl.c:356:31: sparse: got restricted __le16 [usertype]
drivers/scsi/esas2r/esas2r_ioctl.c:357:31: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:419:57: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] csmi_status @@ got restricted __le32 [usertype] @@
drivers/scsi/esas2r/esas2r_ioctl.c:419:57: sparse: expected unsigned int [usertype] csmi_status
drivers/scsi/esas2r/esas2r_ioctl.c:419:57: sparse: got restricted __le32 [usertype]
drivers/scsi/esas2r/esas2r_ioctl.c:425:29: sparse: sparse: invalid assignment: |=
drivers/scsi/esas2r/esas2r_ioctl.c:425:29: sparse: left side has type unsigned int
drivers/scsi/esas2r/esas2r_ioctl.c:425:29: sparse: right side has type restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:569:39: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:600:49: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] csmi_status @@ got restricted __le32 [usertype] @@
drivers/scsi/esas2r/esas2r_ioctl.c:600:49: sparse: expected unsigned int [usertype] csmi_status
drivers/scsi/esas2r/esas2r_ioctl.c:600:49: sparse: got restricted __le32 [usertype]
drivers/scsi/esas2r/esas2r_ioctl.c:632:21: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:642:22: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:697:17: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:1013:37: sparse: sparse: invalid assignment: |=
drivers/scsi/esas2r/esas2r_ioctl.c:1013:37: sparse: left side has type unsigned int
drivers/scsi/esas2r/esas2r_ioctl.c:1013:37: sparse: right side has type restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:1015:38: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] length @@ got restricted __le32 [usertype] @@
drivers/scsi/esas2r/esas2r_ioctl.c:1015:38: sparse: expected unsigned int [usertype] length
drivers/scsi/esas2r/esas2r_ioctl.c:1015:38: sparse: got restricted __le32 [usertype]
drivers/scsi/esas2r/esas2r_ioctl.c:1030:45: sparse: sparse: invalid assignment: |=
drivers/scsi/esas2r/esas2r_ioctl.c:1030:45: sparse: left side has type unsigned int
drivers/scsi/esas2r/esas2r_ioctl.c:1030:45: sparse: right side has type restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:1032:45: sparse: sparse: invalid assignment: |=
drivers/scsi/esas2r/esas2r_ioctl.c:1032:45: sparse: left side has type unsigned int
drivers/scsi/esas2r/esas2r_ioctl.c:1032:45: sparse: right side has type restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:1041:45: sparse: sparse: invalid assignment: |=
drivers/scsi/esas2r/esas2r_ioctl.c:1041:45: sparse: left side has type unsigned int
drivers/scsi/esas2r/esas2r_ioctl.c:1041:45: sparse: right side has type restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:1044:45: sparse: sparse: invalid assignment: |=
drivers/scsi/esas2r/esas2r_ioctl.c:1044:45: sparse: left side has type unsigned int
drivers/scsi/esas2r/esas2r_ioctl.c:1044:45: sparse: right side has type restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c: note: in included file:
drivers/scsi/esas2r/esas2r.h:1307:13: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r.h:1307:13: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r.h:1307:13: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r.h:1307:13: sparse: sparse: cast to restricted __le32
drivers/scsi/esas2r/esas2r_ioctl.c:956:39: sparse: sparse: memset with byte count of 524288
drivers/scsi/esas2r/esas2r_ioctl.c: note: in included file (through arch/riscv/include/asm/uaccess.h, include/linux/uaccess.h, include/linux/sched/task.h, ...):
>> include/asm-generic/uaccess.h:92:15: sparse: sparse: memcpy with byte count of 524320

vim +237 drivers/clocksource/timer-clint.c

d5be89a8d118a8 Palmer Dabbelt 2020-09-14 204
2ac6795fcc085e Anup Patel 2020-08-17 205 pr_info("%pOFP: timer running at %ld Hz\n", np, clint_timer_freq);
2ac6795fcc085e Anup Patel 2020-08-17 206
2ac6795fcc085e Anup Patel 2020-08-17 207 rc = clocksource_register_hz(&clint_clocksource, clint_timer_freq);
2ac6795fcc085e Anup Patel 2020-08-17 208 if (rc) {
2ac6795fcc085e Anup Patel 2020-08-17 209 pr_err("%pOFP: clocksource register failed [%d]\n", np, rc);
2ac6795fcc085e Anup Patel 2020-08-17 210 goto fail_iounmap;
2ac6795fcc085e Anup Patel 2020-08-17 211 }
2ac6795fcc085e Anup Patel 2020-08-17 212
2ac6795fcc085e Anup Patel 2020-08-17 213 sched_clock_register(clint_get_cycles64, 64, clint_timer_freq);
2ac6795fcc085e Anup Patel 2020-08-17 214
2ac6795fcc085e Anup Patel 2020-08-17 215 rc = request_percpu_irq(clint_timer_irq, clint_timer_interrupt,
2ac6795fcc085e Anup Patel 2020-08-17 216 "clint-timer", &clint_clock_event);
2ac6795fcc085e Anup Patel 2020-08-17 217 if (rc) {
2ac6795fcc085e Anup Patel 2020-08-17 218 pr_err("registering percpu irq failed [%d]\n", rc);
2ac6795fcc085e Anup Patel 2020-08-17 219 goto fail_iounmap;
2ac6795fcc085e Anup Patel 2020-08-17 220 }
2ac6795fcc085e Anup Patel 2020-08-17 221
2ac6795fcc085e Anup Patel 2020-08-17 222 rc = cpuhp_setup_state(CPUHP_AP_CLINT_TIMER_STARTING,
2ac6795fcc085e Anup Patel 2020-08-17 223 "clockevents/clint/timer:starting",
2ac6795fcc085e Anup Patel 2020-08-17 224 clint_timer_starting_cpu,
2ac6795fcc085e Anup Patel 2020-08-17 225 clint_timer_dying_cpu);
2ac6795fcc085e Anup Patel 2020-08-17 226 if (rc) {
2ac6795fcc085e Anup Patel 2020-08-17 227 pr_err("%pOFP: cpuhp setup state failed [%d]\n", np, rc);
2ac6795fcc085e Anup Patel 2020-08-17 228 goto fail_free_irq;
2ac6795fcc085e Anup Patel 2020-08-17 229 }
2ac6795fcc085e Anup Patel 2020-08-17 230
2ac6795fcc085e Anup Patel 2020-08-17 231 riscv_set_ipi_ops(&clint_ipi_ops);
2ac6795fcc085e Anup Patel 2020-08-17 232 clint_clear_ipi();
2ac6795fcc085e Anup Patel 2020-08-17 233
2ac6795fcc085e Anup Patel 2020-08-17 234 return 0;
2ac6795fcc085e Anup Patel 2020-08-17 235
2ac6795fcc085e Anup Patel 2020-08-17 236 fail_free_irq:
2ac6795fcc085e Anup Patel 2020-08-17 @237 free_irq(clint_timer_irq, &clint_clock_event);
2ac6795fcc085e Anup Patel 2020-08-17 238 fail_iounmap:
2ac6795fcc085e Anup Patel 2020-08-17 239 iounmap(base);
2ac6795fcc085e Anup Patel 2020-08-17 240 return rc;
2ac6795fcc085e Anup Patel 2020-08-17 241 }
2ac6795fcc085e Anup Patel 2020-08-17 242

:::::: The code at line 237 was first introduced by commit
:::::: 2ac6795fcc085e8d03649f1bbd0d70aaff612cad clocksource/drivers: Add CLINT timer driver

:::::: TO: Anup Patel <anup.patel@wdc.com>
:::::: CC: Palmer Dabbelt <palmerdabbelt@google.com>

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