* [freescale-fslc:5.12.x+fslc 4/6] drivers/misc/uboot_bootcount.c:70:50: error: incompatible function pointer types initializing 'ssize_t (*)(struct device *, struct device_attribute *, char *)' (aka 'long (*)(struct device *, struct device_attribute *, char *)') with an expression of type...
@ 2021-06-07 1:19 kernel test robot
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From: kernel test robot @ 2021-06-07 1:19 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 9916 bytes --]
tree: https://github.com/Freescale/linux-fslc 5.12.x+fslc
head: 533c005dbffa6950950622c514132d7b11c039bf
commit: 78c9cede1e8309fbce3522c4ec751d71e6cbd1d4 [4/6] drivers, misc: add U-Boot bootcount driver
config: powerpc-randconfig-r002-20210607 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project ae973380c5f6be77ce395022be40350942260be9)
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 powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://github.com/Freescale/linux-fslc/commit/78c9cede1e8309fbce3522c4ec751d71e6cbd1d4
git remote add freescale-fslc https://github.com/Freescale/linux-fslc
git fetch --no-tags freescale-fslc 5.12.x+fslc
git checkout 78c9cede1e8309fbce3522c4ec751d71e6cbd1d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:115:1: note: expanded from here
__do_outl
^
arch/powerpc/include/asm/io.h:537:62: note: expanded from macro '__do_outl'
#define __do_outl(val, port) writel(val,(PCI_IO_ADDR)_IO_BASE+port);
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/misc/uboot_bootcount.c:16:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:43:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insb, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:129:1: note: expanded from here
__do_insb
^
arch/powerpc/include/asm/io.h:556:56: note: expanded from macro '__do_insb'
#define __do_insb(p, b, n) readsb((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/misc/uboot_bootcount.c:16:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:131:1: note: expanded from here
__do_insw
^
arch/powerpc/include/asm/io.h:557:56: note: expanded from macro '__do_insw'
#define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/misc/uboot_bootcount.c:16:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:133:1: note: expanded from here
__do_insl
^
arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl'
#define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/misc/uboot_bootcount.c:16:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:135:1: note: expanded from here
__do_outsb
^
arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb'
#define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/misc/uboot_bootcount.c:16:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:137:1: note: expanded from here
__do_outsw
^
arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw'
#define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
In file included from drivers/misc/uboot_bootcount.c:16:
In file included from include/linux/io.h:13:
In file included from arch/powerpc/include/asm/io.h:619:
arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET'
__do_##name al; \
^~~~~~~~~~~~~~
<scratch space>:139:1: note: expanded from here
__do_outsl
^
arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl'
#define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n))
~~~~~~~~~~~~~~~~~~~~~^
>> drivers/misc/uboot_bootcount.c:70:50: error: incompatible function pointer types initializing 'ssize_t (*)(struct device *, struct device_attribute *, char *)' (aka 'long (*)(struct device *, struct device_attribute *, char *)') with an expression of type 'int (struct device *, struct device_attribute *, char *)' [-Werror,-Wincompatible-function-pointer-types]
static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
^~~~~~~~~~~~~~~~~~
include/linux/device.h:126:66: note: expanded from macro 'DEVICE_ATTR'
struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
^~~~~
include/linux/sysfs.h:104:10: note: expanded from macro '__ATTR'
.show = _show, \
^~~~~
>> drivers/misc/uboot_bootcount.c:71:3: error: incompatible function pointer types initializing 'ssize_t (*)(struct device *, struct device_attribute *, const char *, size_t)' (aka 'long (*)(struct device *, struct device_attribute *, const char *, unsigned long)') with an expression of type 'int (struct device *, struct device_attribute *, const char *, size_t)' (aka 'int (struct device *, struct device_attribute *, const char *, unsigned long)') [-Werror,-Wincompatible-function-pointer-types]
store_str_bootcount);
^~~~~~~~~~~~~~~~~~~
include/linux/device.h:126:73: note: expanded from macro 'DEVICE_ATTR'
struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
^~~~~~
include/linux/sysfs.h:105:11: note: expanded from macro '__ATTR'
.store = _store, \
^~~~~~
13 warnings and 2 errors generated.
vim +70 drivers/misc/uboot_bootcount.c
69
> 70 static DEVICE_ATTR(bootcount, S_IWUSR | S_IRUGO, show_str_bootcount,
> 71 store_str_bootcount);
72
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-06-07 1:19 [freescale-fslc:5.12.x+fslc 4/6] drivers/misc/uboot_bootcount.c:70:50: error: incompatible function pointer types initializing 'ssize_t (*)(struct device *, struct device_attribute *, char *)' (aka 'long (*)(struct device *, struct device_attribute *, char *)') with an expression of type kernel test robot
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