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...
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(a)intel.com>
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(a)upwardaccess.com>
:::::: CC: Ralf Baechle <ralf(a)linux-mips.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org