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Message-ID: <202311241512.0CL83yG6-lkp@intel.com>
Date: Fri, 24 Nov 2023 21:19:50 +0800
From: kernel test robot <lkp@...el.com>
To: Anshul Dalal <anshulusr@...il.com>, linux-input@...r.kernel.org,
devicetree@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Anshul Dalal <anshulusr@...il.com>,
Conor Dooley <conor+dt@...nel.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Thomas Weißschuh <linux@...ssschuh.net>,
linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzk@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Jeff LaBundy <jeff@...undy.com>,
linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH v10 2/2] input: joystick: driver for Adafruit Seesaw
Gamepad
Hi Anshul,
kernel test robot noticed the following build warnings:
[auto build test WARNING on dtor-input/next]
[also build test WARNING on dtor-input/for-linus hid/for-next linus/master v6.7-rc2 next-20231124]
[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/Anshul-Dalal/input-joystick-driver-for-Adafruit-Seesaw-Gamepad/20231121-204243
base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
patch link: https://lore.kernel.org/r/20231121123409.2231115-2-anshulusr%40gmail.com
patch subject: [PATCH v10 2/2] input: joystick: driver for Adafruit Seesaw Gamepad
config: hexagon-randconfig-r123-20231123 (https://download.01.org/0day-ci/archive/20231124/202311241512.0CL83yG6-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20231124/202311241512.0CL83yG6-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311241512.0CL83yG6-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/input/joystick/adafruit-seesaw.c:21:
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]
547 | 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]
560 | 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'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/input/joystick/adafruit-seesaw.c:21:
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]
573 | 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'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/input/joystick/adafruit-seesaw.c:21:
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]
584 | __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]
594 | __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]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
>> drivers/input/joystick/adafruit-seesaw.c:300:34: warning: unused variable 'seesaw_of_table' [-Wunused-const-variable]
300 | static const struct of_device_id seesaw_of_table[] = {
| ^
7 warnings generated.
vim +/seesaw_of_table +300 drivers/input/joystick/adafruit-seesaw.c
299
> 300 static const struct of_device_id seesaw_of_table[] = {
301 { .compatible = "adafruit,seesaw-gamepad"},
302 { /* Sentinel */ }
303 };
304 MODULE_DEVICE_TABLE(of, seesaw_of_table);
305
--
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