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Date: Tue, 11 May 2021 09:25:19 +0800
From: kernel test robot <lkp@...el.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Kent Gibson <warthog618@...il.com>, linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v1 1/1] gpiolib: Introduce for_each_gpio_desc() macro
Hi Andy,
I love your patch! Perhaps something to improve:
[auto build test WARNING on gpio/for-next]
[also build test WARNING on v5.13-rc1 next-20210510]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Andy-Shevchenko/gpiolib-Introduce-for_each_gpio_desc-macro/20210511-035305
base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git for-next
config: riscv-randconfig-r011-20210510 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 492173d42b32cb91d5d0d72d5ed84fcab80d059a)
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
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/0day-ci/linux/commit/ceaf41face19ca3a36b81b3b866c1708a90cb4e2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Andy-Shevchenko/gpiolib-Introduce-for_each_gpio_desc-macro/20210511-035305
git checkout ceaf41face19ca3a36b81b3b866c1708a90cb4e2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> drivers/gpio/gpiolib-of.c:718:32: warning: incompatible integer to pointer conversion passing 'unsigned long' to parameter of type 'const volatile unsigned long *'; take the address with & [-Wint-conversion]
if (test_bit(FLAG_IS_HOGGED, desc->flags) && desc->hog == hog)
^~~~~~~~~~~
&
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/asm-generic/bitops/non-atomic.h:104:66: note: passing argument to parameter 'addr' here
static inline int test_bit(int nr, const volatile unsigned long *addr)
^
>> drivers/gpio/gpiolib-of.c:718:32: warning: incompatible integer to pointer conversion passing 'unsigned long' to parameter of type 'const volatile unsigned long *'; take the address with & [-Wint-conversion]
if (test_bit(FLAG_IS_HOGGED, desc->flags) && desc->hog == hog)
^~~~~~~~~~~
&
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:61: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/asm-generic/bitops/non-atomic.h:104:66: note: passing argument to parameter 'addr' here
static inline int test_bit(int nr, const volatile unsigned long *addr)
^
>> drivers/gpio/gpiolib-of.c:718:32: warning: incompatible integer to pointer conversion passing 'unsigned long' to parameter of type 'const volatile unsigned long *'; take the address with & [-Wint-conversion]
if (test_bit(FLAG_IS_HOGGED, desc->flags) && desc->hog == hog)
^~~~~~~~~~~
&
include/linux/compiler.h:56:47: note: expanded from macro 'if'
#define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) )
^~~~
include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var'
#define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
^~~~
include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value'
(cond) ? \
^~~~
include/asm-generic/bitops/non-atomic.h:104:66: note: passing argument to parameter 'addr' here
static inline int test_bit(int nr, const volatile unsigned long *addr)
^
3 warnings generated.
vim +718 drivers/gpio/gpiolib-of.c
704
705 #ifdef CONFIG_OF_DYNAMIC
706 /**
707 * of_gpiochip_remove_hog - Remove all hogs in a hog device node
708 * @chip: gpio chip to act on
709 * @hog: device node describing the hogs
710 */
711 static void of_gpiochip_remove_hog(struct gpio_chip *chip,
712 struct device_node *hog)
713 {
714 struct gpio_desc *desc;
715 unsigned int i;
716
717 for_each_gpio_desc(i, chip, desc) {
> 718 if (test_bit(FLAG_IS_HOGGED, desc->flags) && desc->hog == hog)
719 gpiochip_free_own_desc(desc);
720 }
721 }
722
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Download attachment ".config.gz" of type "application/gzip" (37838 bytes)
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