From: kernel test robot <lkp@intel.com>
To: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Linus Walleij <linus.walleij@linaro.org>
Subject: [arm-integrator:p4d_pgd_cdtor 10/10] arch/s390/include/asm/pgalloc.h:129:9: error: incompatible pointer types initializing 'pgd_t *' with an expression of type 'unsigned long *'
Date: Wed, 18 Dec 2024 21:44:02 +0800 [thread overview]
Message-ID: <202412182149.jj21x6Bc-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git p4d_pgd_cdtor
head: 5453d8f69ac04a3a31ea973f98de9e0c58248a42
commit: 5453d8f69ac04a3a31ea973f98de9e0c58248a42 [10/10] mm: Introduce ctor/dtor at PGD level
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20241218/202412182149.jj21x6Bc-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241218/202412182149.jj21x6Bc-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412182149.jj21x6Bc-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from include/linux/mm.h:2213:
include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
504 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
505 | item];
| ~~~~
include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
511 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
512 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
524 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
525 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
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:24:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:95:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | 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]
561 | 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'
37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
| ^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
102 | #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:24:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:95:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | 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'
35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
| ^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
115 | #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:24:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/s390/include/asm/io.h:95:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __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]
595 | __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]
605 | __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]
693 | 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]
701 | 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]
709 | 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]
718 | 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]
727 | 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]
736 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
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:24:
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:181:
In file included from arch/s390/include/asm/mmu_context.h:11:
arch/s390/include/asm/pgalloc.h:67:36: error: use of undeclared identifier 'table'
67 | pagetable_p4d_dtor(virt_to_ptdesc(table));
| ^
>> arch/s390/include/asm/pgalloc.h:129:9: error: incompatible pointer types initializing 'pgd_t *' with an expression of type 'unsigned long *' [-Werror,-Wincompatible-pointer-types]
129 | pgd_t *table = crst_table_alloc(mm);
| ^ ~~~~~~~~~~~~~~~~~~~~
16 warnings and 2 errors generated.
make[3]: *** [scripts/Makefile.build:102: arch/s390/kernel/asm-offsets.s] Error 1
make[3]: Target 'prepare' not remade because of errors.
make[2]: *** [Makefile:1203: prepare0] Error 2
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:224: __sub-make] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:224: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +129 arch/s390/include/asm/pgalloc.h
62
63 static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d)
64 {
65 if (mm_p4d_folded(mm))
66 return;
> 67 pagetable_p4d_dtor(virt_to_ptdesc(table));
68 crst_table_free(mm, (unsigned long *) p4d);
69 }
70
71 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
72 {
73 unsigned long *table = crst_table_alloc(mm);
74
75 if (!table)
76 return NULL;
77 crst_table_init(table, _REGION3_ENTRY_EMPTY);
78 pagetable_pud_ctor(virt_to_ptdesc(table));
79 return (pud_t *) table;
80 }
81
82 static inline void pud_free(struct mm_struct *mm, pud_t *pud)
83 {
84 if (mm_pud_folded(mm))
85 return;
86 pagetable_pud_dtor(virt_to_ptdesc(pud));
87 crst_table_free(mm, (unsigned long *) pud);
88 }
89
90 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr)
91 {
92 unsigned long *table = crst_table_alloc(mm);
93
94 if (!table)
95 return NULL;
96 crst_table_init(table, _SEGMENT_ENTRY_EMPTY);
97 if (!pagetable_pmd_ctor(virt_to_ptdesc(table))) {
98 crst_table_free(mm, table);
99 return NULL;
100 }
101 return (pmd_t *) table;
102 }
103
104 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
105 {
106 if (mm_pmd_folded(mm))
107 return;
108 pagetable_pmd_dtor(virt_to_ptdesc(pmd));
109 crst_table_free(mm, (unsigned long *) pmd);
110 }
111
112 static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, p4d_t *p4d)
113 {
114 set_pgd(pgd, __pgd(_REGION1_ENTRY | __pa(p4d)));
115 }
116
117 static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud)
118 {
119 set_p4d(p4d, __p4d(_REGION2_ENTRY | __pa(pud)));
120 }
121
122 static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
123 {
124 set_pud(pud, __pud(_REGION3_ENTRY | __pa(pmd)));
125 }
126
127 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
128 {
> 129 pgd_t *table = crst_table_alloc(mm);
130
131 if (!table)
132 return NULL;
133 pagetable_pgd_ctor(virt_to_ptdesc(table));
134 return table;
135 }
136
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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