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Date: Wed, 7 Dec 2022 06:50:59 +0800
From: kernel test robot <lkp@...el.com>
To: Song Chen <chensong_2000@....cn>, rostedt@...dmis.org,
mhiramat@...nel.org, arnd@...db.de
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
linux-trace-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
Song Chen <chensong_2000@....cn>
Subject: Re: [PATCH v3 3/4] include/asm-generic/io.h: remove performing
pointer arithmetic on a null pointer
Hi Song,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on arnd-asm-generic/master]
[also build test WARNING on linus/master v6.1-rc8 next-20221206]
[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/Song-Chen/reorganize-trace_peobe_tmpl-h/20221206-205410
base: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git master
patch link: https://lore.kernel.org/r/1670229006-4063-1-git-send-email-chensong_2000%40189.cn
patch subject: [PATCH v3 3/4] include/asm-generic/io.h: remove performing pointer arithmetic on a null pointer
config: arc-randconfig-s051-20221206
compiler: arc-elf-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/intel-lab-lkp/linux/commit/7dbc7861ae2072e177c0665ac10fe0e3810bd454
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Song-Chen/reorganize-trace_peobe_tmpl-h/20221206-205410
git checkout 7dbc7861ae2072e177c0665ac10fe0e3810bd454
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash drivers/i2c/busses/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
drivers/i2c/busses/i2c-parport.c: note: in included file (through arch/arc/include/asm/io.h, include/linux/parport_pc.h, include/linux/parport.h):
>> include/asm-generic/io.h:586:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:586:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:586:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:589:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:589:40: sparse: expected void volatile [noderef] __iomem *addr
include/asm-generic/io.h:589:40: sparse: got void *
>> include/asm-generic/io.h:586:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:586:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:586:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:589:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:589:40: sparse: expected void volatile [noderef] __iomem *addr
include/asm-generic/io.h:589:40: sparse: got void *
>> include/asm-generic/io.h:586:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:586:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:586:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:589:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:589:40: sparse: expected void volatile [noderef] __iomem *addr
include/asm-generic/io.h:589:40: sparse: got void *
include/asm-generic/io.h:545:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:545:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:545:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:548:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:548:38: sparse: expected void const volatile [noderef] __iomem *addr
include/asm-generic/io.h:548:38: sparse: got void *
include/asm-generic/io.h:545:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:545:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:545:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:548:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:548:38: sparse: expected void const volatile [noderef] __iomem *addr
include/asm-generic/io.h:548:38: sparse: got void *
>> include/asm-generic/io.h:586:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:586:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:586:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:589:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:589:40: sparse: expected void volatile [noderef] __iomem *addr
include/asm-generic/io.h:589:40: sparse: got void *
>> include/asm-generic/io.h:586:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:586:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:586:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:589:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:589:40: sparse: expected void volatile [noderef] __iomem *addr
include/asm-generic/io.h:589:40: sparse: got void *
>> include/asm-generic/io.h:586:28: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void *pci_iobase @@ got void [noderef] __iomem * @@
include/asm-generic/io.h:586:28: sparse: expected void *pci_iobase
include/asm-generic/io.h:586:28: sparse: got void [noderef] __iomem *
include/asm-generic/io.h:589:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@
include/asm-generic/io.h:589:40: sparse: expected void volatile [noderef] __iomem *addr
include/asm-generic/io.h:589:40: sparse: got void *
vim +586 include/asm-generic/io.h
581
582 #if !defined(outb) && !defined(_outb)
583 #define _outb _outb
584 static inline void _outb(u8 value, unsigned long addr)
585 {
> 586 void *pci_iobase = PCI_IOBASE;
587
588 __io_pbw();
589 __raw_writeb(value, pci_iobase + addr);
590 __io_paw();
591 }
592 #endif
593
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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