From: kernel test robot <lkp@intel.com>
To: Claudio Imbrenda <imbrenda@linux.ibm.com>, kvm@vger.kernel.org
Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org,
borntraeger@de.ibm.com, frankja@linux.ibm.com, thuth@redhat.com,
pasic@linux.ibm.com, david@redhat.com,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
scgl@linux.ibm.com, mimu@linux.ibm.com, nrb@linux.ibm.com
Subject: Re: [PATCH v8 10/17] KVM: s390: pv: add mmu_notifier
Date: Thu, 3 Mar 2022 11:12:45 +0800 [thread overview]
Message-ID: <202203031008.y7TlswqY-lkp@intel.com> (raw)
In-Reply-To: <20220302181143.188283-11-imbrenda@linux.ibm.com>
Hi Claudio,
I love your patch! Yet something to improve:
[auto build test ERROR on kvm/master]
[also build test ERROR on v5.17-rc6 next-20220302]
[cannot apply to kvms390/next s390/features]
[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]
url: https://github.com/0day-ci/linux/commits/Claudio-Imbrenda/KVM-s390-pv-implement-lazy-destroy-for-reboot/20220303-021407
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git master
config: s390-randconfig-r001-20220302 (https://download.01.org/0day-ci/archive/20220303/202203031008.y7TlswqY-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/0day-ci/linux/commit/bbf278ea47b7bdfb3c72e24faffedbb8a3a5b9f9
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Claudio-Imbrenda/KVM-s390-pv-implement-lazy-destroy-for-reboot/20220303-021407
git checkout bbf278ea47b7bdfb3c72e24faffedbb8a3a5b9f9
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash arch/s390/kvm/
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 >>):
In file included from arch/s390/kvm/kvm-s390.c:23:
In file included from include/linux/kvm_host.h:41:
In file included from include/linux/kvm_para.h:5:
In file included from include/uapi/linux/kvm_para.h:37:
In file included from arch/s390/include/asm/kvm_para.h:25:
In file included from arch/s390/include/asm/diag.h:12:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: 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:477:61: 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/kvm/kvm-s390.c:23:
In file included from include/linux/kvm_host.h:41:
In file included from include/linux/kvm_para.h:5:
In file included from include/uapi/linux/kvm_para.h:37:
In file included from arch/s390/include/asm/kvm_para.h:25:
In file included from arch/s390/include/asm/diag.h:12:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: 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/kvm/kvm-s390.c:23:
In file included from include/linux/kvm_host.h:41:
In file included from include/linux/kvm_para.h:5:
In file included from include/uapi/linux/kvm_para.h:37:
In file included from arch/s390/include/asm/kvm_para.h:25:
In file included from arch/s390/include/asm/diag.h:12:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: 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:511:59: 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:521:59: 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:609:20: 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:617:20: 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:625:20: 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:634:21: 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:643:21: 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:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> arch/s390/kvm/kvm-s390.c:2839:3: error: implicit declaration of function 'mmu_notifier_unregister' [-Werror,-Wimplicit-function-declaration]
mmu_notifier_unregister(&kvm->arch.pv.mmu_notifier, kvm->mm);
^
arch/s390/kvm/kvm-s390.c:2839:3: note: did you mean 'preempt_notifier_unregister'?
include/linux/preempt.h:346:6: note: 'preempt_notifier_unregister' declared here
void preempt_notifier_unregister(struct preempt_notifier *notifier);
^
12 warnings and 1 error generated.
--
In file included from arch/s390/kvm/pv.c:9:
In file included from include/linux/kvm_host.h:41:
In file included from include/linux/kvm_para.h:5:
In file included from include/uapi/linux/kvm_para.h:37:
In file included from arch/s390/include/asm/kvm_para.h:25:
In file included from arch/s390/include/asm/diag.h:12:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: 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:477:61: 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/kvm/pv.c:9:
In file included from include/linux/kvm_host.h:41:
In file included from include/linux/kvm_para.h:5:
In file included from include/uapi/linux/kvm_para.h:37:
In file included from arch/s390/include/asm/kvm_para.h:25:
In file included from arch/s390/include/asm/diag.h:12:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: 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/kvm/pv.c:9:
In file included from include/linux/kvm_host.h:41:
In file included from include/linux/kvm_para.h:5:
In file included from include/uapi/linux/kvm_para.h:37:
In file included from arch/s390/include/asm/kvm_para.h:25:
In file included from arch/s390/include/asm/diag.h:12:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: 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:511:59: 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:521:59: 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:609:20: 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:617:20: 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:625:20: 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:634:21: 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:643:21: 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:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> arch/s390/kvm/pv.c:260:3: error: implicit declaration of function 'mmu_notifier_register' [-Werror,-Wimplicit-function-declaration]
mmu_notifier_register(&kvm->arch.pv.mmu_notifier, kvm->mm);
^
arch/s390/kvm/pv.c:260:3: note: did you mean 'mmu_notifier_release'?
include/linux/mmu_notifier.h:679:20: note: 'mmu_notifier_release' declared here
static inline void mmu_notifier_release(struct mm_struct *mm)
^
12 warnings and 1 error generated.
vim +/mmu_notifier_unregister +2839 arch/s390/kvm/kvm-s390.c
2823
2824 void kvm_arch_destroy_vm(struct kvm *kvm)
2825 {
2826 u16 rc, rrc;
2827
2828 kvm_destroy_vcpus(kvm);
2829 sca_dispose(kvm);
2830 kvm_s390_gisa_destroy(kvm);
2831 /*
2832 * We are already at the end of life and kvm->lock is not taken.
2833 * This is ok as the file descriptor is closed by now and nobody
2834 * can mess with the pv state. To avoid lockdep_assert_held from
2835 * complaining we do not use kvm_s390_pv_is_protected.
2836 */
2837 if (kvm_s390_pv_get_handle(kvm)) {
2838 kvm_s390_pv_deinit_vm(kvm, &rc, &rrc);
> 2839 mmu_notifier_unregister(&kvm->arch.pv.mmu_notifier, kvm->mm);
2840 }
2841 debug_unregister(kvm->arch.dbf);
2842 free_page((unsigned long)kvm->arch.sie_page2);
2843 if (!kvm_is_ucontrol(kvm))
2844 gmap_remove(kvm->arch.gmap);
2845 kvm_s390_destroy_adapters(kvm);
2846 kvm_s390_clear_float_irqs(kvm);
2847 kvm_s390_vsie_destroy(kvm);
2848 KVM_EVENT(3, "vm 0x%pK destroyed", kvm);
2849 }
2850
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
next prev parent reply other threads:[~2022-03-03 3:13 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-02 18:11 [PATCH v8 00/17] KVM: s390: pv: implement lazy destroy for reboot Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 01/17] KVM: s390: pv: leak the topmost page table when destroy fails Claudio Imbrenda
2022-03-03 14:40 ` Janis Schoetterl-Glausch
2022-03-03 15:05 ` Claudio Imbrenda
2022-03-03 16:34 ` Janis Schoetterl-Glausch
2022-03-02 18:11 ` [PATCH v8 02/17] KVM: s390: pv: handle secure storage violations for protected guests Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 03/17] KVM: s390: pv: handle secure storage exceptions for normal guests Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 04/17] KVM: s390: pv: refactor s390_reset_acc Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 05/17] KVM: s390: pv: usage counter instead of flag Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 06/17] KVM: s390: pv: add export before import Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 07/17] KVM: s390: pv: module parameter to fence lazy destroy Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 08/17] KVM: s390: pv: clear the state without memset Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 09/17] KVM: s390: pv: Add kvm_s390_cpus_from_pv to kvm-s390.h and add documentation Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 10/17] KVM: s390: pv: add mmu_notifier Claudio Imbrenda
2022-03-03 3:12 ` kernel test robot
2022-03-03 3:12 ` kernel test robot [this message]
2022-03-02 18:11 ` [PATCH v8 11/17] s390/mm: KVM: pv: when tearing down, try to destroy protected pages Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 12/17] KVM: s390: pv: refactoring of kvm_s390_pv_deinit_vm Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 13/17] KVM: s390: pv: cleanup leftover protected VMs if needed Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 14/17] KVM: s390: pv: asynchronous destroy for reboot Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 15/17] KVM: s390: pv: api documentation for asynchronous destroy Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 16/17] KVM: s390: pv: add KVM_CAP_S390_PROTECTED_ASYNC_DISABLE Claudio Imbrenda
2022-03-02 18:11 ` [PATCH v8 17/17] KVM: s390: pv: avoid export before import if possible Claudio Imbrenda
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