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Date: Tue, 28 Feb 2023 09:54:11 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: kernel test robot <lkp@...el.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Neil Armstrong <neil.armstrong@...aro.org>,
Bjorn Andersson <andersson@...nel.org>
Subject: Re: include/asm-generic/div64.h:238:36: error: passing argument 1 of
'__div64_32' from incompatible pointer type
CC new-Bjorn.
On Tue, Feb 28, 2023 at 9:52 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> On Mon, Feb 27, 2023 at 11:33 PM kernel test robot <lkp@...el.com> wrote:
> > FYI, the error/warning still remains.
> >
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 982818426a0ffaf93b0621826ed39a84be3d7d62
> > commit: 29e8142b5623b5949587bcc4f591c4e6595c4aca power: supply: Introduce Qualcomm PMIC GLINK power supply
> > date: 2 weeks ago
> > config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20230228/202302280619.kO2cWoIT-lkp@intel.com/config)
> > compiler: arceb-elf-gcc (GCC) 12.1.0
> > 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
> > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29e8142b5623b5949587bcc4f591c4e6595c4aca
> > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > git fetch --no-tags linus master
> > git checkout 29e8142b5623b5949587bcc4f591c4e6595c4aca
> > # save the config file
> > mkdir build_dir && cp config build_dir/.config
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc olddefconfig
> > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash
> >
> > If you fix the issue, kindly add following tag where applicable
> > | Reported-by: kernel test robot <lkp@...el.com>
> > | Link: https://lore.kernel.org/oe-kbuild-all/202302280619.kO2cWoIT-lkp@intel.com/
> >
> > All errors (new ones prefixed by >>):
> >
> > In file included from ./arch/arc/include/generated/asm/div64.h:1,
> > from include/linux/math.h:6,
> > from include/linux/math64.h:6,
> > from include/linux/time64.h:5,
> > from include/linux/restart_block.h:10,
> > from include/linux/thread_info.h:14,
> > from include/asm-generic/preempt.h:5,
> > from ./arch/arc/include/generated/asm/preempt.h:1,
> > from include/linux/preempt.h:78,
> > from include/linux/rcupdate.h:27,
> > from include/linux/rculist.h:11,
> > from include/linux/pid.h:5,
> > from include/linux/sched.h:14,
> > from include/linux/ratelimit.h:6,
> > from include/linux/dev_printk.h:16,
> > from include/linux/device.h:15,
> > from include/linux/auxiliary_bus.h:11,
> > from drivers/power/supply/qcom_battmgr.c:6:
> > drivers/power/supply/qcom_battmgr.c: In function 'qcom_battmgr_sm8350_callback':
> > include/asm-generic/div64.h:222:35: warning: comparison of distinct pointer types lacks a cast
> > 222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
> > | ^~
> > drivers/power/supply/qcom_battmgr.c:1130:25: note: in expansion of macro 'do_div'
> > 1130 | do_div(battmgr->status.percent, 100);
> > | ^~~~~~
> > In file included from include/linux/dev_printk.h:14:
> > include/asm-generic/div64.h:234:32: warning: right shift count >= width of type [-Wshift-count-overflow]
> > 234 | } else if (likely(((n) >> 32) == 0)) { \
> > | ^~
> > include/linux/compiler.h:77:45: note: in definition of macro 'likely'
> > 77 | # define likely(x) __builtin_expect(!!(x), 1)
> > | ^
> > drivers/power/supply/qcom_battmgr.c:1130:25: note: in expansion of macro 'do_div'
> > 1130 | do_div(battmgr->status.percent, 100);
> > | ^~~~~~
> > >> include/asm-generic/div64.h:238:36: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
> > 238 | __rem = __div64_32(&(n), __base); \
> > | ^~~~
> > | |
> > | unsigned int *
> > drivers/power/supply/qcom_battmgr.c:1130:25: note: in expansion of macro 'do_div'
> > 1130 | do_div(battmgr->status.percent, 100);
> > | ^~~~~~
> > include/asm-generic/div64.h:213:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'unsigned int *'
> > 213 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
> > | ~~~~~~~~~~^~~~~~~~
> > cc1: some warnings being treated as errors
>
> Fix available for two weeks:
> https://lore.kernel.org/all/20230214132052.1556699-1-arnd@kernel.org
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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