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Date: Thu, 29 Sep 2022 00:54:02 +0800
From: kernel test robot <lkp@...el.com>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [superna9999:amlogic/v6.1/spicc-screen 5/5]
include/asm-generic/div64.h:238:36: error: passing argument 1 of
'__div64_32' from incompatible pointer type
tree: https://github.com/superna9999/linux amlogic/v6.1/spicc-screen
head: a41ffc262712ee4647b922f38eef57035aa31d4f
commit: a41ffc262712ee4647b922f38eef57035aa31d4f [5/5] spi: meson-spicc: move wait completion in driver to take bursts delay in account
config: arc-randconfig-r043-20220928
compiler: arc-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://github.com/superna9999/linux/commit/a41ffc262712ee4647b922f38eef57035aa31d4f
git remote add superna9999 https://github.com/superna9999/linux
git fetch --no-tags superna9999 amlogic/v6.1/spicc-screen
git checkout a41ffc262712ee4647b922f38eef57035aa31d4f
# 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 SHELL=/bin/bash drivers/spi/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All error/warnings (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/kernel.h:25,
from include/linux/clk.h:13,
from drivers/spi/spi-meson-spicc.c:11:
drivers/spi/spi-meson-spicc.c: In function 'meson_spicc_transfer_one':
>> 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/spi/spi-meson-spicc.c:438:9: note: in expansion of macro 'do_div'
438 | do_div(timeout, xfer->speed_hz);
| ^~~~~~
In file included from include/linux/build_bug.h:5,
from include/linux/bitfield.h:10,
from drivers/spi/spi-meson-spicc.c:10:
>> 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/spi/spi-meson-spicc.c:438:9: note: in expansion of macro 'do_div'
438 | do_div(timeout, xfer->speed_hz);
| ^~~~~~
>> 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); \
| ^~~~
| |
| long unsigned int *
drivers/spi/spi-meson-spicc.c:438:9: note: in expansion of macro 'do_div'
438 | do_div(timeout, xfer->speed_hz);
| ^~~~~~
include/asm-generic/div64.h:213:38: note: expected 'uint64_t *' {aka 'long long unsigned int *'} but argument is of type 'long unsigned int *'
213 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
| ~~~~~~~~~~^~~~~~~~
cc1: some warnings being treated as errors
vim +/__div64_32 +238 include/asm-generic/div64.h
^1da177e4c3f41 Linus Torvalds 2005-04-16 215
^1da177e4c3f41 Linus Torvalds 2005-04-16 216 /* The unnecessary pointer compare is there
^1da177e4c3f41 Linus Torvalds 2005-04-16 217 * to check for type safety (n must be 64bit)
^1da177e4c3f41 Linus Torvalds 2005-04-16 218 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 219 # define do_div(n,base) ({ \
^1da177e4c3f41 Linus Torvalds 2005-04-16 220 uint32_t __base = (base); \
^1da177e4c3f41 Linus Torvalds 2005-04-16 221 uint32_t __rem; \
^1da177e4c3f41 Linus Torvalds 2005-04-16 @222 (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
911918aa7ef6f8 Nicolas Pitre 2015-11-02 223 if (__builtin_constant_p(__base) && \
911918aa7ef6f8 Nicolas Pitre 2015-11-02 224 is_power_of_2(__base)) { \
911918aa7ef6f8 Nicolas Pitre 2015-11-02 225 __rem = (n) & (__base - 1); \
911918aa7ef6f8 Nicolas Pitre 2015-11-02 226 (n) >>= ilog2(__base); \
c747ce4706190e Geert Uytterhoeven 2021-08-11 227 } else if (__builtin_constant_p(__base) && \
461a5e51060c93 Nicolas Pitre 2015-10-30 228 __base != 0) { \
461a5e51060c93 Nicolas Pitre 2015-10-30 229 uint32_t __res_lo, __n_lo = (n); \
461a5e51060c93 Nicolas Pitre 2015-10-30 230 (n) = __div64_const32(n, __base); \
461a5e51060c93 Nicolas Pitre 2015-10-30 231 /* the remainder can be computed with 32-bit regs */ \
461a5e51060c93 Nicolas Pitre 2015-10-30 232 __res_lo = (n); \
461a5e51060c93 Nicolas Pitre 2015-10-30 233 __rem = __n_lo - __res_lo * __base; \
911918aa7ef6f8 Nicolas Pitre 2015-11-02 @234 } else if (likely(((n) >> 32) == 0)) { \
^1da177e4c3f41 Linus Torvalds 2005-04-16 235 __rem = (uint32_t)(n) % __base; \
^1da177e4c3f41 Linus Torvalds 2005-04-16 236 (n) = (uint32_t)(n) / __base; \
c747ce4706190e Geert Uytterhoeven 2021-08-11 237 } else { \
^1da177e4c3f41 Linus Torvalds 2005-04-16 @238 __rem = __div64_32(&(n), __base); \
c747ce4706190e Geert Uytterhoeven 2021-08-11 239 } \
^1da177e4c3f41 Linus Torvalds 2005-04-16 240 __rem; \
^1da177e4c3f41 Linus Torvalds 2005-04-16 241 })
^1da177e4c3f41 Linus Torvalds 2005-04-16 242
:::::: The code at line 238 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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