arch/mips/sibyte/common/sb_tbprof.c:515:23: sparse: sparse: incorrect type in initializer (different address spaces)

From: kernel test robot
Date: Tue May 18 2021 - 17:55:34 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8ac91e6c6033ebc12c5c1e4aa171b81a662bd70f
commit: ddb002d6d6af12c45dd9d565cadf0f40b36b7c25 MIPS: uaccess: Reduce number of nested macros
date: 5 weeks ago
config: mips-randconfig-s032-20210519 (attached as .config)
compiler: mipsel-linux-gcc (GCC) 9.3.0
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: v0.6.3-341-g8af24329-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ddb002d6d6af12c45dd9d565cadf0f40b36b7c25
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ddb002d6d6af12c45dd9d565cadf0f40b36b7c25
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=mips

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

sparse warnings: (new ones prefixed by >>)
command-line: note: in included file:
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
builtin:0:0: sparse: this was the original definition
arch/mips/sibyte/common/sb_tbprof.c:449:14: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __user *p @@ got char *buf @@
arch/mips/sibyte/common/sb_tbprof.c:449:14: sparse: expected void const [noderef] __user *p
arch/mips/sibyte/common/sb_tbprof.c:449:14: sparse: got char *buf
arch/mips/sibyte/common/sb_tbprof.c:464:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got char *dest @@
arch/mips/sibyte/common/sb_tbprof.c:464:38: sparse: expected void [noderef] __user *to
arch/mips/sibyte/common/sb_tbprof.c:464:38: sparse: got char *dest
>> arch/mips/sibyte/common/sb_tbprof.c:515:23: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected int [noderef] __user *__p @@ got int * @@
arch/mips/sibyte/common/sb_tbprof.c:515:23: sparse: expected int [noderef] __user *__p
arch/mips/sibyte/common/sb_tbprof.c:515:23: sparse: got int *
arch/mips/sibyte/common/sb_tbprof.c:531:27: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected int ( *read )( ... ) @@ got int ( * )( ... ) @@
arch/mips/sibyte/common/sb_tbprof.c:531:27: sparse: expected int ( *read )( ... )
arch/mips/sibyte/common/sb_tbprof.c:531:27: sparse: got int ( * )( ... )

vim +515 arch/mips/sibyte/common/sb_tbprof.c

^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 439
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 440 static ssize_t sbprof_tb_read(struct file *filp, char *buf,
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 441 size_t size, loff_t *offp)
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 442 {
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 443 int cur_sample, sample_off, cur_count, sample_left;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 444 char *src;
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 445 int count = 0;
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 446 char *dest = buf;
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 447 long cur_off = *offp;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 448
96d4f267e40f95 arch/mips/sibyte/common/sb_tbprof.c Linus Torvalds 2019-01-03 @449 if (!access_ok(buf, size))
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 450 return -EFAULT;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 451
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 452 mutex_lock(&sbp.lock);
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 453
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 454 count = 0;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 455 cur_sample = cur_off / TB_SAMPLE_SIZE;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 456 sample_off = cur_off % TB_SAMPLE_SIZE;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 457 sample_left = TB_SAMPLE_SIZE - sample_off;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 458
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 459 while (size && (cur_sample < sbp.next_tb_sample)) {
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 460 int err;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 461
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 462 cur_count = size < sample_left ? size : sample_left;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 463 src = (char *)(((long)sbp.sbprof_tbbuf[cur_sample])+sample_off);
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 464 err = __copy_to_user(dest, src, cur_count);
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 465 if (err) {
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 466 *offp = cur_off + cur_count - err;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 467 mutex_unlock(&sbp.lock);
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 468 return err;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 469 }
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 470 pr_debug(DEVNAME ": read from sample %d, %d bytes\n",
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 471 cur_sample, cur_count);
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 472 size -= cur_count;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 473 sample_left -= cur_count;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 474 if (!sample_left) {
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 475 cur_sample++;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 476 sample_off = 0;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 477 sample_left = TB_SAMPLE_SIZE;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 478 } else {
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 479 sample_off += cur_count;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 480 }
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 481 cur_off += cur_count;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 482 dest += cur_count;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 483 count += cur_count;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 484 }
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 485 *offp = cur_off;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 486 mutex_unlock(&sbp.lock);
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 487
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 488 return count;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 489 }
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 490
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 491 static long sbprof_tb_ioctl(struct file *filp,
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 492 unsigned int command,
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 493 unsigned long arg)
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 494 {
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 495 int err = 0;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 496
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 497 switch (command) {
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 498 case SBPROF_ZBSTART:
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 499 mutex_lock(&sbp.lock);
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 500 err = sbprof_zbprof_start(filp);
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 501 mutex_unlock(&sbp.lock);
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 502 break;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 503
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 504 case SBPROF_ZBSTOP:
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 505 mutex_lock(&sbp.lock);
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 506 err = sbprof_zbprof_stop();
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 507 mutex_unlock(&sbp.lock);
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 508 break;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 509
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 510 case SBPROF_ZBWAITFULL: {
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 511 err = wait_event_interruptible(sbp.tb_read, TB_FULL);
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 512 if (err)
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 513 break;
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 514
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 @515 err = put_user(TB_FULL, (int *) arg);
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 516 break;
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 517 }
bb9b813bb665cd arch/mips/sibyte/sb1250/bcm1250_tbprof.c Ralf Baechle 2007-03-09 518
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 519 default:
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 520 err = -EINVAL;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 521 break;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 522 }
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 523
d619f38fdacb5c arch/mips/sibyte/common/sb_tbprof.c Mark Mason 2007-03-29 524 return err;
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 525 }
^1da177e4c3f41 arch/mips/sibyte/sb1250/bcm1250_tbprof.c Linus Torvalds 2005-04-16 526

:::::: The code at line 515 was first introduced by commit
:::::: d619f38fdacb5cec0c841798bbadeaf903868852 [MIPS] Add bcm1480 ZBus trace support, fix wait related bugs

:::::: TO: Mark Mason <mmason@xxxxxxxxxxxxxxxx>
:::::: CC: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

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

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