tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 4c05433bc6fb4ae172270f0279be8ba89a3da64f commit: b025584098e621d88894d28e80af686958e273af [32/52] virtio_input: convert to LE accessors config: parisc-randconfig-r003-20200805 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout b025584098e621d88894d28e80af686958e273af # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/irqflags.h:15,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:89,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:29,
from include/linux/kernel.h:12,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/virtio/virtio_input.c:2:
drivers/virtio/virtio_input.c: In function 'virtinput_probe':
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer
>> types lacks a cast
12 | (void)(&__dummy == &__dummy2); \
| ^~
include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
405 | typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
| ^~~~~~~~~
drivers/virtio/virtio_input.c:247:3: note: in expansion of macro
'virtio_cread_le'
247 | virtio_cread_le(vi->vdev, struct virtio_input_config,
| ^~~~~~~~~~~~~~~
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer
>> types lacks a cast
12 | (void)(&__dummy == &__dummy2); \
| ^~
include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
405 | typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
| ^~~~~~~~~
drivers/virtio/virtio_input.c:249:3: note: in expansion of macro
'virtio_cread_le'
249 | virtio_cread_le(vi->vdev, struct virtio_input_config,
| ^~~~~~~~~~~~~~~
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer
>> types lacks a cast
12 | (void)(&__dummy == &__dummy2); \
| ^~
include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
405 | typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
| ^~~~~~~~~
drivers/virtio/virtio_input.c:251:3: note: in expansion of macro
'virtio_cread_le'
251 | virtio_cread_le(vi->vdev, struct virtio_input_config,
| ^~~~~~~~~~~~~~~
>> include/linux/typecheck.h:12:18: warning: comparison of distinct pointer
>> types lacks a cast
12 | (void)(&__dummy == &__dummy2); \
| ^~
include/linux/virtio_config.h:405:3: note: in expansion of macro 'typecheck'
405 | typecheck(typeof(virtio_le_to_cpu(virtio_cread_v)), *(ptr)); \
| ^~~~~~~~~
drivers/virtio/virtio_input.c:253:3: note: in expansion of macro
'virtio_cread_le'
253 | virtio_cread_le(vi->vdev, struct virtio_input_config,
| ^~~~~~~~~~~~~~~
vim +12 include/linux/typecheck.h
e0deaff470900a4 Andrew Morton 2008-07-25 4
e0deaff470900a4 Andrew Morton 2008-07-25 5 /*
e0deaff470900a4 Andrew Morton 2008-07-25 6 * Check at compile time that
something is of a particular type.
e0deaff470900a4 Andrew Morton 2008-07-25 7 * Always evaluates to 1 so you
may use it easily in comparisons.
e0deaff470900a4 Andrew Morton 2008-07-25 8 */
e0deaff470900a4 Andrew Morton 2008-07-25 9 #define typecheck(type,x) \
e0deaff470900a4 Andrew Morton 2008-07-25 10 ({ type __dummy; \
e0deaff470900a4 Andrew Morton 2008-07-25 11 typeof(x) __dummy2; \
e0deaff470900a4 Andrew Morton 2008-07-25 @12 (void)(&__dummy == &__dummy2); \
e0deaff470900a4 Andrew Morton 2008-07-25 13 1; \
e0deaff470900a4 Andrew Morton 2008-07-25 14 })
e0deaff470900a4 Andrew Morton 2008-07-25 15
:::::: The code at line 12 was first introduced by commit
:::::: e0deaff470900a4c3222ca7139f6c9639e26a2f5 split the typecheck macros out
of include/linux/kernel.h
:::::: TO: Andrew Morton <a...@linux-foundation.org>
:::::: CC: Linus Torvalds <torva...@linux-foundation.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
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