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SubjectRe: [PATCH v6] gpio/mpc8xxx: change irq handler from chained to normal
Hi Hui,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on gpio/for-next]
[cannot apply to v5.3 next-20190925]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Hui-Song/gpio-mpc8xxx-change-irq-handler-from-chained-to-normal/20190927-113256
base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 7.4.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.4.0 make.cross ARCH=mips

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

In file included from arch/mips/include/asm/bitops.h:625:0,
from include/linux/bitops.h:19,
from include/linux/kernel.h:12,
from drivers/gpio/gpio-mpc8xxx.c:12:
drivers/gpio/gpio-mpc8xxx.c: In function 'mpc8xxx_gpio_irq_cascade':
>> include/asm-generic/bitops/find.h:75:50: error: passing argument 1 of 'find_next_bit' from incompatible pointer type [-Werror=incompatible-pointer-types]
#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
^
>> include/linux/bitops.h:22:15: note: in expansion of macro 'find_first_bit'
for ((bit) = find_first_bit((addr), (size)); \
^~~~~~~~~~~~~~
drivers/gpio/gpio-mpc8xxx.c:140:2: note: in expansion of macro 'for_each_set_bit'
for_each_set_bit(i, &mask, 32)
^~~~~~~~~~~~~~~~
include/asm-generic/bitops/find.h:15:22: note: expected 'const long unsigned int *' but argument is of type 'unsigned int *'
extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
^~~~~~~~~~~~~
In file included from include/linux/kernel.h:12:0,
from drivers/gpio/gpio-mpc8xxx.c:12:
include/linux/bitops.h:24:29: error: passing argument 1 of 'find_next_bit' from incompatible pointer type [-Werror=incompatible-pointer-types]
(bit) = find_next_bit((addr), (size), (bit) + 1))
^
drivers/gpio/gpio-mpc8xxx.c:140:2: note: in expansion of macro 'for_each_set_bit'
for_each_set_bit(i, &mask, 32)
^~~~~~~~~~~~~~~~
In file included from arch/mips/include/asm/bitops.h:625:0,
from include/linux/bitops.h:19,
from include/linux/kernel.h:12,
from drivers/gpio/gpio-mpc8xxx.c:12:
include/asm-generic/bitops/find.h:15:22: note: expected 'const long unsigned int *' but argument is of type 'unsigned int *'
extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
^~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from arch/mips/include/asm/bitops.h:625:0,
from include/linux/bitops.h:19,
from include/linux/kernel.h:12,
from drivers//gpio/gpio-mpc8xxx.c:12:
drivers//gpio/gpio-mpc8xxx.c: In function 'mpc8xxx_gpio_irq_cascade':
>> include/asm-generic/bitops/find.h:75:50: error: passing argument 1 of 'find_next_bit' from incompatible pointer type [-Werror=incompatible-pointer-types]
#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
^
>> include/linux/bitops.h:22:15: note: in expansion of macro 'find_first_bit'
for ((bit) = find_first_bit((addr), (size)); \
^~~~~~~~~~~~~~
drivers//gpio/gpio-mpc8xxx.c:140:2: note: in expansion of macro 'for_each_set_bit'
for_each_set_bit(i, &mask, 32)
^~~~~~~~~~~~~~~~
include/asm-generic/bitops/find.h:15:22: note: expected 'const long unsigned int *' but argument is of type 'unsigned int *'
extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
^~~~~~~~~~~~~
In file included from include/linux/kernel.h:12:0,
from drivers//gpio/gpio-mpc8xxx.c:12:
include/linux/bitops.h:24:29: error: passing argument 1 of 'find_next_bit' from incompatible pointer type [-Werror=incompatible-pointer-types]
(bit) = find_next_bit((addr), (size), (bit) + 1))
^
drivers//gpio/gpio-mpc8xxx.c:140:2: note: in expansion of macro 'for_each_set_bit'
for_each_set_bit(i, &mask, 32)
^~~~~~~~~~~~~~~~
In file included from arch/mips/include/asm/bitops.h:625:0,
from include/linux/bitops.h:19,
from include/linux/kernel.h:12,
from drivers//gpio/gpio-mpc8xxx.c:12:
include/asm-generic/bitops/find.h:15:22: note: expected 'const long unsigned int *' but argument is of type 'unsigned int *'
extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
^~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/find_first_bit +22 include/linux/bitops.h

4677d4a53e0d56 Borislav Petkov 2010-05-03 14
^1da177e4c3f41 Linus Torvalds 2005-04-16 15 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 16 * Include this here because some architectures need generic_ffs/fls in
^1da177e4c3f41 Linus Torvalds 2005-04-16 17 * scope
^1da177e4c3f41 Linus Torvalds 2005-04-16 18 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 @19 #include <asm/bitops.h>
^1da177e4c3f41 Linus Torvalds 2005-04-16 20
984b3f5746ed2c Akinobu Mita 2010-03-05 21 #define for_each_set_bit(bit, addr, size) \
3e037454bcfa4b Shannon Nelson 2007-10-16 @22 for ((bit) = find_first_bit((addr), (size)); \
3e037454bcfa4b Shannon Nelson 2007-10-16 23 (bit) < (size); \
3e037454bcfa4b Shannon Nelson 2007-10-16 24 (bit) = find_next_bit((addr), (size), (bit) + 1))
3e037454bcfa4b Shannon Nelson 2007-10-16 25

:::::: The code at line 22 was first introduced by commit
:::::: 3e037454bcfa4b187e8293d2121bd8c0f5a5c31c I/OAT: Add support for MSI and MSI-X

:::::: TO: Shannon Nelson <shannon.nelson@intel.com>
:::::: CC: Linus Torvalds <torvalds@woody.linux-foundation.org>

---
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https://lists.01.org/pipermail/kbuild-all Intel Corporation
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