| Message ID | 1670229006-4063-1-git-send-email-chensong_2000@189.cn (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | reorganize trace_peobe_tmpl.h | expand |
On Mon, Dec 5, 2022, at 09:30, Song Chen wrote: > kernel test robot reports below warnings: > > In file included from kernel/trace/trace_events_synth.c:18: > In file included from include/linux/trace_events.h:9: > 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)) > > The reason could be constant literal zero converted to any pointer type decays > into the null pointer constant. > > I'm not sure why those warnings are only triggered when building hexagon instead > of x86 or arm, but anyway, i found a work around: > > void *pci_iobase = PCI_IOBASE; > val = __raw_readb(pci_iobase + addr); > > The pointer is not evaluated at compile time, so the warnings are removed. > > Signed-off-by: Song Chen <chensong_2000@189.cn> > Reported-by: kernel test robot <lkp@intel.com> The code is still wrong, you just hide the warning, so no, this is not a correct fix. When PCI_IOBASE is NULL, any call to inb() etc is a NULL pointer dereference that immediately crashes the kernel, so the correct solution is to not allow building code that uses port I/O on kernels that are configured not to support port I/O. We have discussed this bit multiple times, and Niklas Schnelle last posted his series to fix this as an RFC in [1]. Arnd [1] https://lore.kernel.org/lkml/20220429135108.2781579-1-schnelle@linux.ibm.com/
Hi, 在 2022/12/5 18:04, Arnd Bergmann 写道: > On Mon, Dec 5, 2022, at 09:30, Song Chen wrote: >> kernel test robot reports below warnings: >> >> In file included from kernel/trace/trace_events_synth.c:18: >> In file included from include/linux/trace_events.h:9: >> 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)) >> >> The reason could be constant literal zero converted to any pointer type decays >> into the null pointer constant. >> >> I'm not sure why those warnings are only triggered when building hexagon instead >> of x86 or arm, but anyway, i found a work around: >> >> void *pci_iobase = PCI_IOBASE; >> val = __raw_readb(pci_iobase + addr); >> >> The pointer is not evaluated at compile time, so the warnings are removed. >> >> Signed-off-by: Song Chen <chensong_2000@189.cn> >> Reported-by: kernel test robot <lkp@intel.com> > > The code is still wrong, you just hide the warning, so no, this is > not a correct fix. When PCI_IOBASE is NULL, any call to > inb() etc is a NULL pointer dereference that immediately crashes > the kernel, so the correct solution is to not allow building code > that uses port I/O on kernels that are configured not to > support port I/O. > > We have discussed this bit multiple times, and Niklas Schnelle > last posted his series to fix this as an RFC in [1]. > > Arnd > > [1] https://lore.kernel.org/lkml/20220429135108.2781579-1-schnelle@linux.ibm.com/ > Trace triggers the warning accidentally by including io.h indirectly because of the absence of PCI_IOBASE in hexagon. So what trace can do in this case is either to suppress warning or just ignore it, the warning will go away as long as hexagon has put PCI_IOBASE in place or implemented its own inb() etc, i think they will do it sooner or later. Introducing HAS_IOPORT to trace seems no necessary and too much impact. /Song
On Tue, Dec 6, 2022, at 07:01, Song Chen wrote: > 在 2022/12/5 18:04, Arnd Bergmann 写道: >> On Mon, Dec 5, 2022, at 09:30, Song Chen wrote: >> >> We have discussed this bit multiple times, and Niklas Schnelle >> last posted his series to fix this as an RFC in [1]. >> > > Trace triggers the warning accidentally by including io.h indirectly > because of the absence of PCI_IOBASE in hexagon. So what trace can do in > this case is either to suppress warning or just ignore it, the warning > will go away as long as hexagon has put PCI_IOBASE in place or > implemented its own inb() etc, i think they will do it sooner or later. hexagon/riscv/s390 should not implement inb(), there is no reason for that because no hardware uses it. Half of the other architectures that currently implement inb() should not do so either. > Introducing HAS_IOPORT to trace seems no necessary and too much impact. I don't think that trace has anything to do with it, the asm-generic header should just not provde the inb() interface on architectures that don't use it. Arnd
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@intel.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
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 v6.2-rc1 next-20221226]
[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: csky-randconfig-s033-20221225
compiler: csky-linux-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=csky olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=csky SHELL=/bin/bash drivers/input/joystick/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>)
drivers/input/joystick/joydump.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.h):
>> 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: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 *
--
drivers/input/joystick/grip_mp.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.h):
>> 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: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: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: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: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: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: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: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 *
--
drivers/input/joystick/tmdc.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.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: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 *
--
drivers/input/joystick/cobra.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.h):
>> 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 *
--
drivers/input/joystick/grip.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.h):
>> 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: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 *
--
drivers/input/joystick/gf2k.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.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: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: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 *
--
drivers/input/joystick/interact.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.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: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 *
--
drivers/input/joystick/analog.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.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: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: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: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: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: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 *
--
drivers/input/joystick/sidewinder.c: note: in included file (through arch/csky/include/asm/io.h, include/linux/gameport.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: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: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: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 *
vim +545 include/asm-generic/io.h
533
534 /*
535 * {in,out}{b,w,l}() access little endian I/O. {in,out}{b,w,l}_p() can be
536 * implemented on hardware that needs an additional delay for I/O accesses to
537 * take effect.
538 */
539
540 #if !defined(inb) && !defined(_inb)
541 #define _inb _inb
542 static inline u8 _inb(unsigned long addr)
543 {
544 u8 val;
> 545 void *pci_iobase = PCI_IOBASE;
546
547 __io_pbr();
548 val = __raw_readb(pci_iobase + addr);
549 __io_par(val);
550 return val;
551 }
552 #endif
553
554 #if !defined(inw) && !defined(_inw)
555 #define _inw _inw
556 static inline u16 _inw(unsigned long addr)
557 {
558 u16 val;
559 void *pci_iobase = PCI_IOBASE;
560
561 __io_pbr();
562 val = __le16_to_cpu((__le16 __force)__raw_readw(pci_iobase + addr));
563 __io_par(val);
564 return val;
565 }
566 #endif
567
568 #if !defined(inl) && !defined(_inl)
569 #define _inl _inl
570 static inline u32 _inl(unsigned long addr)
571 {
572 u32 val;
573 void *pci_iobase = PCI_IOBASE;
574
575 __io_pbr();
576 val = __le32_to_cpu((__le32 __force)__raw_readl(pci_iobase + addr));
577 __io_par(val);
578 return val;
579 }
580 #endif
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
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index a68f8fbf423b..394538fd2585 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -542,9 +542,10 @@ static inline void writesq(volatile void __iomem *addr, const void *buffer, static inline u8 _inb(unsigned long addr) { u8 val; + void *pci_iobase = PCI_IOBASE; __io_pbr(); - val = __raw_readb(PCI_IOBASE + addr); + val = __raw_readb(pci_iobase + addr); __io_par(val); return val; } @@ -555,9 +556,10 @@ static inline u8 _inb(unsigned long addr) static inline u16 _inw(unsigned long addr) { u16 val; + void *pci_iobase = PCI_IOBASE; __io_pbr(); - val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); + val = __le16_to_cpu((__le16 __force)__raw_readw(pci_iobase + addr)); __io_par(val); return val; } @@ -568,9 +570,10 @@ static inline u16 _inw(unsigned long addr) static inline u32 _inl(unsigned long addr) { u32 val; + void *pci_iobase = PCI_IOBASE; __io_pbr(); - val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); + val = __le32_to_cpu((__le32 __force)__raw_readl(pci_iobase + addr)); __io_par(val); return val; } @@ -580,8 +583,10 @@ static inline u32 _inl(unsigned long addr) #define _outb _outb static inline void _outb(u8 value, unsigned long addr) { + void *pci_iobase = PCI_IOBASE; + __io_pbw(); - __raw_writeb(value, PCI_IOBASE + addr); + __raw_writeb(value, pci_iobase + addr); __io_paw(); } #endif @@ -590,8 +595,10 @@ static inline void _outb(u8 value, unsigned long addr) #define _outw _outw static inline void _outw(u16 value, unsigned long addr) { + void *pci_iobase = PCI_IOBASE; + __io_pbw(); - __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); + __raw_writew((u16 __force)cpu_to_le16(value), pci_iobase + addr); __io_paw(); } #endif @@ -600,8 +607,10 @@ static inline void _outw(u16 value, unsigned long addr) #define _outl _outl static inline void _outl(u32 value, unsigned long addr) { + void *pci_iobase = PCI_IOBASE; + __io_pbw(); - __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); + __raw_writel((u32 __force)cpu_to_le32(value), pci_iobase + addr); __io_paw(); } #endif @@ -689,7 +698,9 @@ static inline void outl_p(u32 value, unsigned long addr) #define insb insb static inline void insb(unsigned long addr, void *buffer, unsigned int count) { - readsb(PCI_IOBASE + addr, buffer, count); + void *pci_iobase = PCI_IOBASE; + + readsb(pci_iobase + addr, buffer, count); } #endif @@ -697,7 +708,9 @@ static inline void insb(unsigned long addr, void *buffer, unsigned int count) #define insw insw static inline void insw(unsigned long addr, void *buffer, unsigned int count) { - readsw(PCI_IOBASE + addr, buffer, count); + void *pci_iobase = PCI_IOBASE; + + readsw(pci_iobase + addr, buffer, count); } #endif @@ -705,7 +718,9 @@ static inline void insw(unsigned long addr, void *buffer, unsigned int count) #define insl insl static inline void insl(unsigned long addr, void *buffer, unsigned int count) { - readsl(PCI_IOBASE + addr, buffer, count); + void *pci_iobase = PCI_IOBASE; + + readsl(pci_iobase + addr, buffer, count); } #endif @@ -714,7 +729,9 @@ static inline void insl(unsigned long addr, void *buffer, unsigned int count) static inline void outsb(unsigned long addr, const void *buffer, unsigned int count) { - writesb(PCI_IOBASE + addr, buffer, count); + void *pci_iobase = PCI_IOBASE; + + writesb(pci_iobase + addr, buffer, count); } #endif @@ -723,7 +740,9 @@ static inline void outsb(unsigned long addr, const void *buffer, static inline void outsw(unsigned long addr, const void *buffer, unsigned int count) { - writesw(PCI_IOBASE + addr, buffer, count); + void *pci_iobase = PCI_IOBASE; + + writesw(pci_iobase + addr, buffer, count); } #endif @@ -732,7 +751,9 @@ static inline void outsw(unsigned long addr, const void *buffer, static inline void outsl(unsigned long addr, const void *buffer, unsigned int count) { - writesl(PCI_IOBASE + addr, buffer, count); + void *pci_iobase = PCI_IOBASE; + + writesl(pci_iobase + addr, buffer, count); } #endif
kernel test robot reports below warnings: In file included from kernel/trace/trace_events_synth.c:18: In file included from include/linux/trace_events.h:9: 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)) The reason could be constant literal zero converted to any pointer type decays into the null pointer constant. I'm not sure why those warnings are only triggered when building hexagon instead of x86 or arm, but anyway, i found a work around: void *pci_iobase = PCI_IOBASE; val = __raw_readb(pci_iobase + addr); The pointer is not evaluated at compile time, so the warnings are removed. Signed-off-by: Song Chen <chensong_2000@189.cn> Reported-by: kernel test robot <lkp@intel.com> --- include/asm-generic/io.h | 45 +++++++++++++++++++++++++++++----------- 1 file changed, 33 insertions(+), 12 deletions(-)