Re: [PATCH V5 12/20] asm-generic/io.h: iounmap/ioport_unmap cleanup.h support

From: kernel test robot
Date: Fri Nov 24 2023 - 04:49:17 EST

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Hi David,

kernel test robot noticed the following build errors:

[auto build test ERROR on b85ea95d086471afb4ad062012a4d73cd328fa86]

url: https://github.com/intel-lab-lkp/linux/commits/David-E-Box/platform-x86-intel-vsec-Fix-xa_alloc-memory-leak/20231123-120726
base: b85ea95d086471afb4ad062012a4d73cd328fa86
patch link: https://lore.kernel.org/r/20231123040355.82139-13-david.e.box%40linux.intel.com
patch subject: [PATCH V5 12/20] asm-generic/io.h: iounmap/ioport_unmap cleanup.h support
config: s390-randconfig-001-20231123 (https://download.01.org/0day-ci/archive/20231124/202311241214.jcL84du7-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231124/202311241214.jcL84du7-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311241214.jcL84du7-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:19:
In file included from include/linux/msi.h:27:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:548:31: 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:561:61: 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/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:19:
In file included from include/linux/msi.h:27:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:574:61: 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/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:19:
In file included from include/linux/msi.h:27:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:585:33: 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:595:59: 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:605:59: 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);
~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> include/asm-generic/io.h:1070:38: error: call to undeclared function 'iounmap'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
DEFINE_FREE(iounmap, void __iomem *, iounmap(_T));
^
arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap'
#define iounmap iounmap
^
include/asm-generic/io.h:1070:38: note: did you mean 'vunmap'?
arch/s390/include/asm/io.h:29:17: note: expanded from macro 'iounmap'
#define iounmap iounmap
^
include/linux/vmalloc.h:167:13: note: 'vunmap' declared here
extern void vunmap(const void *addr);
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:19:
In file included from include/linux/msi.h:27:
In file included from include/linux/irq.h:591:
In file included from arch/s390/include/asm/hw_irq.h:6:
In file included from include/linux/pci.h:37:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:160:
include/linux/compat.h:454:22: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
^ ~
arch/s390/include/asm/signal.h:22:9: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:19:
In file included from include/linux/msi.h:27:
In file included from include/linux/irq.h:591:
In file included from arch/s390/include/asm/hw_irq.h:6:
In file included from include/linux/pci.h:37:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:160:
include/linux/compat.h:454:10: warning: array index 7 is past the end of the array (that has type 'compat_sigset_word[2]' (aka 'unsigned int[2]')) [-Warray-bounds]
case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
^ ~
include/linux/compat.h:130:2: note: array 'sig' declared here
compat_sigset_word sig[_COMPAT_NSIG_WORDS];
^
include/linux/compat.h:454:42: warning: array index 6 is past the end of the array (that has type 'compat_sigset_word[2]' (aka 'unsigned int[2]')) [-Warray-bounds]
case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
^ ~
include/linux/compat.h:130:2: note: array 'sig' declared here
compat_sigset_word sig[_COMPAT_NSIG_WORDS];
^
include/linux/compat.h:454:53: warning: array index 3 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
^ ~
arch/s390/include/asm/signal.h:22:9: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:19:
In file included from include/linux/msi.h:27:
In file included from include/linux/irq.h:591:
In file included from arch/s390/include/asm/hw_irq.h:6:
In file included from include/linux/pci.h:37:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:160:
include/linux/compat.h:456:22: warning: array index 2 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
^ ~
arch/s390/include/asm/signal.h:22:9: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/s390/kernel/asm-offsets.c:11:
In file included from include/linux/kvm_host.h:19:
In file included from include/linux/msi.h:27:
In file included from include/linux/irq.h:591:
In file included from arch/s390/include/asm/hw_irq.h:6:
In file included from include/linux/pci.h:37:
In file included from include/linux/device.h:32:
In file included from include/linux/device/driver.h:21:
In file included from include/linux/module.h:19:
In file included from include/linux/elf.h:6:
In file included from arch/s390/include/asm/elf.h:160:
include/linux/compat.h:456:10: warning: array index 5 is past the end of the array (that has type 'compat_sigset_word[2]' (aka 'unsigned int[2]')) [-Warray-bounds]
case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
^ ~
include/linux/compat.h:130:2: note: array 'sig' declared here
compat_sigset_word sig[_COMPAT_NSIG_WORDS];
^
include/linux/compat.h:456:42: warning: array index 4 is past the end of the array (that has type 'compat_sigset_word[2]' (aka 'unsigned int[2]')) [-Warray-bounds]
case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
^ ~
include/linux/compat.h:130:2: note: array 'sig' declared here
compat_sigset_word sig[_COMPAT_NSIG_WORDS];
^
include/linux/compat.h:456:53: warning: array index 2 is past the end of the array (that has type 'const unsigned long[1]') [-Warray-bounds]
case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];

vim +/iounmap +1070 include/asm-generic/io.h

1068
1069 #ifdef iounmap
> 1070 DEFINE_FREE(iounmap, void __iomem *, iounmap(_T));
1071 #endif
1072

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Next message: Krzysztof Kozlowski: "[PATCH] ARM: dts: st: minor whitespace cleanup around '='"
Previous message: Krzysztof Kozlowski: "Re: [PATCH 1/2] arm64: dts: ti: minor whitespace cleanup around '='"
Next in thread: David E. Box: "Re: [PATCH V5 12/20] asm-generic/io.h: iounmap/ioport_unmap cleanup.h support"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]