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Message-ID: <202211051031.jim9UPYd-lkp@intel.com>
Date: Sat, 5 Nov 2022 10:33:41 +0800
From: kernel test robot <lkp@...el.com>
To: Ibrahim Tilki <Ibrahim.Tilki@...log.com>, a.zummo@...ertech.it,
alexandre.belloni@...tlin.com, jdelvare@...e.com,
linux@...ck-us.net, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Ibrahim Tilki <Ibrahim.Tilki@...log.com>,
linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
Zeynep Arslanbenzer <Zeynep.Arslanbenzer@...log.com>
Subject: Re: [PATCH v2 1/2] drivers: rtc: add max313xx series rtc driver
Hi Ibrahim,
I love your patch! Perhaps something to improve:
[auto build test WARNING on abelloni/rtc-next]
[also build test WARNING on linus/master v6.1-rc3 next-20221104]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ibrahim-Tilki/drivers-rtc-add-max313xx-series-rtc-driver/20221026-211354
base: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git rtc-next
patch link: https://lore.kernel.org/r/20221026131124.289-2-Ibrahim.Tilki%40analog.com
patch subject: [PATCH v2 1/2] drivers: rtc: add max313xx series rtc driver
config: hexagon-allmodconfig
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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/intel-lab-lkp/linux/commit/c1a7008298cd59100af5149baf99e53245d6be0f
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Ibrahim-Tilki/drivers-rtc-add-max313xx-series-rtc-driver/20221026-211354
git checkout c1a7008298cd59100af5149baf99e53245d6be0f
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/rtc/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from drivers/rtc/rtc-max313xx.c:13:
In file included from include/linux/i2c.h:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from drivers/rtc/rtc-max313xx.c:13:
In file included from include/linux/i2c.h:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from drivers/rtc/rtc-max313xx.c:13:
In file included from include/linux/i2c.h:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
>> drivers/rtc/rtc-max313xx.c:583:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
default:
^
drivers/rtc/rtc-max313xx.c:583:2: note: insert 'break;' to avoid fall-through
default:
^
break;
7 warnings generated.
vim +583 drivers/rtc/rtc-max313xx.c
569
570 static void max313xx_clkout_disable(struct clk_hw *hw)
571 {
572 struct max313xx *rtc = clk_hw_to_max313xx(hw);
573 struct clkout_cfg *clkout = rtc->chip->clkout;
574
575 switch (rtc->id) {
576 case ID_MAX31331:
577 case ID_MAX31334:
578 if (rtc->irq > 0) {
579 dev_err(rtc->rtc->dev.parent,
580 "clkout cannot be disabled when IRQ is requested");
581 return;
582 }
> 583 default:
584 break;
585 }
586
587 if (clkout->en_invert)
588 regmap_set_bits(rtc->regmap, clkout->reg, clkout->en_bit);
589 else
590 regmap_clear_bits(rtc->regmap, clkout->reg, clkout->en_bit);
591 }
592
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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