tree:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 10207e3a840b47b5eae573486a88fb6e29884f77
commit: f982d9b7c628388dae73b723cc2302cbd091cab5 [2876/4656] arc: remove set_fs()
config: arc-allyesconfig
(
https://download.01.org/0day-ci/archive/20220209/202202091707.w4yhaEQx-lk...)
compiler: arceb-elf-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: v0.6.4-dirty
#
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi...
git remote add linux-next
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout f982d9b7c628388dae73b723cc2302cbd091cab5
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash
drivers/tty/ipwireless/
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 >>)
drivers/tty/ipwireless/tty.c: note: in included file (through include/linux/uaccess.h,
include/linux/sched/task.h, include/linux/sched/signal.h, ...):
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
--
drivers/tty/ipwireless/network.c: note: in included file (through
include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
> arch/arc/include/asm/uaccess.h:42:24: sparse: sparse: incorrect
type in argument 1 (different base types) @@ expected void const volatile [noderef]
__user *ptr @@ got unsigned long addr @@
arch/arc/include/asm/uaccess.h:42:24: sparse: expected void const volatile [noderef]
__user *ptr
arch/arc/include/asm/uaccess.h:42:24: sparse: got unsigned long addr
vim +42 arch/arc/include/asm/uaccess.h
25
26 /*
27 * Algorithmically, for __access_ok() we want do:
28 * (start < TASK_SIZE) && (start+len < TASK_SIZE)
29 *
30 * This can however be rewritten as follows:
31 * (len <= TASK_SIZE) && (start+len < TASK_SIZE)
32 *
33 * Because it essentially checks if buffer end is within limit and @len is
34 * non-ngeative, which implies that buffer start will be within limit too.
35 *
36 * The reason for rewriting being, for majority of cases, @len is generally
37 * compile time constant, causing first sub-expression to be compile time
38 * subsumed.
39 */
40 static inline int __access_ok(unsigned long addr, unsigned long size)
41 {
42 __chk_user_ptr(addr);
43 return size <= TASK_SIZE
&& addr <= TASK_SIZE - size;
44 }
45
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org