From: kbuild test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [nvdimm:libnvdimm-pending 5/29] drivers/nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
Date: Fri, 14 Feb 2020 06:58:19 +0800 [thread overview]
Message-ID: <202002140603.WKyQuiGP%lkp@intel.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 16141 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git libnvdimm-pending
head: 7bd03e293d7f5a46742f26b625ece4d5adb21c66
commit: 162072c175d46796370c6d22017dd1ccba46240a [5/29] libnvdimm/region: Introduce an 'align' attribute
config: arc-randconfig-a001-20200214 (attached as .config)
compiler: arc-elf-gcc (GCC) 9.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 162072c175d46796370c6d22017dd1ccba46240a
# save the attached .config to linux build tree
GCC_VERSION=9.2.0 make.cross ARCH=arc
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/arc/include/generated/asm/div64.h:1,
from include/linux/kernel.h:18,
from include/asm-generic/bug.h:19,
from arch/arc/include/asm/bug.h:29,
from include/linux/bug.h:5,
from include/linux/scatterlist.h:7,
from drivers/nvdimm/region_devs.c:5:
drivers/nvdimm/region_devs.c: In function 'align_store':
include/asm-generic/div64.h:226:28: warning: comparison of distinct pointer types lacks a cast
226 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
>> drivers/nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
In file included from include/linux/string.h:6,
from include/linux/scatterlist.h:5,
from drivers/nvdimm/region_devs.c:5:
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:33:34: note: in definition of macro '__branch_check__'
33 | ______r = __builtin_expect(!!(x), expect); \
| ^
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
>> drivers/nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:35:19: note: in definition of macro '__branch_check__'
35 | expect, is_constant); \
| ^~~~~~~~~~~
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
>> drivers/nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
In file included from ./arch/arc/include/generated/asm/div64.h:1,
from include/linux/kernel.h:18,
from include/asm-generic/bug.h:19,
from arch/arc/include/asm/bug.h:29,
from include/linux/bug.h:5,
from include/linux/scatterlist.h:7,
from drivers/nvdimm/region_devs.c:5:
>> include/asm-generic/div64.h:243:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
243 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| long unsigned int *
>> drivers/nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
include/asm-generic/div64.h:217:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'long unsigned int *'
217 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
drivers/nvdimm/region_devs.c: In function 'default_align':
include/asm-generic/div64.h:226:28: warning: comparison of distinct pointer types lacks a cast
226 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
drivers/nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
In file included from include/linux/string.h:6,
from include/linux/scatterlist.h:5,
from drivers/nvdimm/region_devs.c:5:
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:33:34: note: in definition of macro '__branch_check__'
33 | ______r = __builtin_expect(!!(x), expect); \
| ^
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
drivers/nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:35:19: note: in definition of macro '__branch_check__'
35 | expect, is_constant); \
| ^~~~~~~~~~~
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
drivers/nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
In file included from ./arch/arc/include/generated/asm/div64.h:1,
from include/linux/kernel.h:18,
from include/asm-generic/bug.h:19,
from arch/arc/include/asm/bug.h:29,
from include/linux/bug.h:5,
from include/linux/scatterlist.h:7,
from drivers/nvdimm/region_devs.c:5:
>> include/asm-generic/div64.h:243:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
243 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| long unsigned int *
drivers/nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
include/asm-generic/div64.h:217:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'long unsigned int *'
217 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
cc1: some warnings being treated as errors
--
In file included from ./arch/arc/include/generated/asm/div64.h:1,
from include/linux/kernel.h:18,
from include/asm-generic/bug.h:19,
from arch/arc/include/asm/bug.h:29,
from include/linux/bug.h:5,
from include/linux/scatterlist.h:7,
from drivers//nvdimm/region_devs.c:5:
drivers//nvdimm/region_devs.c: In function 'align_store':
include/asm-generic/div64.h:226:28: warning: comparison of distinct pointer types lacks a cast
226 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
drivers//nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
In file included from include/linux/string.h:6,
from include/linux/scatterlist.h:5,
from drivers//nvdimm/region_devs.c:5:
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:33:34: note: in definition of macro '__branch_check__'
33 | ______r = __builtin_expect(!!(x), expect); \
| ^
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
drivers//nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:35:19: note: in definition of macro '__branch_check__'
35 | expect, is_constant); \
| ^~~~~~~~~~~
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
drivers//nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
In file included from ./arch/arc/include/generated/asm/div64.h:1,
from include/linux/kernel.h:18,
from include/asm-generic/bug.h:19,
from arch/arc/include/asm/bug.h:29,
from include/linux/bug.h:5,
from include/linux/scatterlist.h:7,
from drivers//nvdimm/region_devs.c:5:
>> include/asm-generic/div64.h:243:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
243 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| long unsigned int *
drivers//nvdimm/region_devs.c:567:14: note: in expansion of macro 'do_div'
567 | remainder = do_div(dpa, nd_region->ndr_mappings);
| ^~~~~~
include/asm-generic/div64.h:217:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'long unsigned int *'
217 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
drivers//nvdimm/region_devs.c: In function 'default_align':
include/asm-generic/div64.h:226:28: warning: comparison of distinct pointer types lacks a cast
226 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
| ^~
drivers//nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
In file included from include/linux/string.h:6,
from include/linux/scatterlist.h:5,
from drivers//nvdimm/region_devs.c:5:
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:33:34: note: in definition of macro '__branch_check__'
33 | ______r = __builtin_expect(!!(x), expect); \
| ^
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
drivers//nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
include/asm-generic/div64.h:239:25: warning: right shift count >= width of type [-Wshift-count-overflow]
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~
include/linux/compiler.h:35:19: note: in definition of macro '__branch_check__'
35 | expect, is_constant); \
| ^~~~~~~~~~~
include/asm-generic/div64.h:239:13: note: in expansion of macro 'likely'
239 | } else if (likely(((n) >> 32) == 0)) { \
| ^~~~~~
drivers//nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
In file included from ./arch/arc/include/generated/asm/div64.h:1,
from include/linux/kernel.h:18,
from include/asm-generic/bug.h:19,
from arch/arc/include/asm/bug.h:29,
from include/linux/bug.h:5,
from include/linux/scatterlist.h:7,
from drivers//nvdimm/region_devs.c:5:
>> include/asm-generic/div64.h:243:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
243 | __rem = __div64_32(&(n), __base); \
| ^~~~
| |
| long unsigned int *
drivers//nvdimm/region_devs.c:1034:14: note: in expansion of macro 'do_div'
1034 | remainder = do_div(per_mapping, mappings);
| ^~~~~~
include/asm-generic/div64.h:217:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'long unsigned int *'
217 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
cc1: some warnings being treated as errors
vim +/do_div +567 drivers/nvdimm/region_devs.c
543
544 static ssize_t align_store(struct device *dev,
545 struct device_attribute *attr, const char *buf, size_t len)
546 {
547 struct nd_region *nd_region = to_nd_region(dev);
548 unsigned long val, dpa;
549 u32 remainder;
550 int rc;
551
552 rc = kstrtoul(buf, 0, &val);
553 if (rc)
554 return rc;
555
556 if (!nd_region->ndr_mappings)
557 return -ENXIO;
558
559 /*
560 * Ensure space-align is evenly divisible by the region
561 * interleave-width because the kernel typically has no facility
562 * to determine which DIMM(s), dimm-physical-addresses, would
563 * contribute to the tail capacity in system-physical-address
564 * space for the namespace.
565 */
566 dpa = val;
> 567 remainder = do_div(dpa, nd_region->ndr_mappings);
568 if (!is_power_of_2(dpa) || dpa < PAGE_SIZE
569 || val > region_size(nd_region) || remainder)
570 return -EINVAL;
571
572 /*
573 * Given that space allocation consults this value multiple
574 * times ensure it does not change for the duration of the
575 * allocation.
576 */
577 nvdimm_bus_lock(dev);
578 nd_region->align = val;
579 nvdimm_bus_unlock(dev);
580
581 return len;
582 }
583 static DEVICE_ATTR_RW(align);
584
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 23947 bytes --]
reply other threads:[~2020-02-13 22:58 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202002140603.WKyQuiGP%lkp@intel.com \
--to=lkp@intel.com \
--cc=kbuild-all@lists.01.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.