On Fri, May 22, 2020 at 2:24 PM kbuild test robot <lkp(a)intel.com> wrote:
tree:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 051143e1602d90ea71887d92363edd539d411de5
commit: 1df23c6fe5b0654ece219985a0c32e40b100bd9a compat_ioctl: move HDIO ioctl handling
into drivers/ide
date: 5 months ago
config: xtensa-randconfig-s002-20200522 (attached as .config)
compiler: xtensa-linux-gcc (GCC) 9.3.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-193-gb8fad4bc-dirty
git checkout 1df23c6fe5b0654ece219985a0c32e40b100bd9a
# save the attached .config to linux build tree
make W=1 C=1 ARCH=xtensa CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
./arch/xtensa/include/generated/uapi/asm/unistd_32.h:391:41: sparse: sparse: no
newline at end of file
>> drivers/ide/ide-ioctls.c:15:24: sparse: sparse: incorrect type in initializer
(different address spaces) @@ expected signed int *__pu_addr @@ got signed int
[noderef] [usertypsigned int *__pu_addr @@
>> drivers/ide/ide-ioctls.c:15:24: sparse: expected signed int *__pu_addr
>> drivers/ide/ide-ioctls.c:15:24: sparse: got signed int [noderef] [usertype]
<asn:1> *
>> drivers/ide/ide-ioctls.c:15:24: sparse: sparse: incorrect type in argument 1
(different address spaces) @@ expected void [noderef] <asn:1> *to @@ got f]
<asn:1> *to @@
drivers/ide/ide-ioctls.c:15:24: sparse: expected void [noderef] <asn:1> *to
>> drivers/ide/ide-ioctls.c:15:24: sparse: got signed int *__pu_addr
I think this is a bug in the xtensa asm/uaccess.h, but I don't know why it
only showed up now.
drivers/ide/ide-ioctls.c:17:16: sparse: sparse: incorrect type in
initializer (different address spaces) @@ expected long *__pu_addr @@ got long
[noderef] <aslong *__pu_addr @@
drivers/ide/ide-ioctls.c:17:16: sparse: expected long *__pu_addr
drivers/ide/ide-ioctls.c:17:16: sparse: got long [noderef] <asn:1> *
drivers/ide/ide-ioctls.c:17:16: sparse: sparse: incorrect type in argument 1
(different address spaces) @@ expected void [noderef] <asn:1> *to @@ got
n:1> *to @@
drivers/ide/ide-ioctls.c:17:16: sparse: expected void [noderef] <asn:1> *to
drivers/ide/ide-ioctls.c:17:16: sparse: got long *__pu_addr
This looks like an old bug in the ide driver, unrelated to my patch.
Arnd