Hi Suren, kernel test robot noticed the following build warnings: [auto build test WARNING on 931086f2a88086319afb57cd3925607e8cda0a9f] url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/mm-introduce-vma_start_read_locked-_nested-helpers/20241112-050531 base: 931086f2a88086319afb57cd3925607e8cda0a9f patch link: https://lore.kernel.org/r/20241111205506.3404479-3-surenb%40google.com patch subject: [PATCH 2/4] mm: move per-vma lock into vm_area_struct config: hexagon-randconfig-002-20241112 (https://download.01.org/0day-ci/archive/20241112/202411121840.hE2wZKgE-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241112/202411121840.hE2wZKgE-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/202411121840.hE2wZKgE-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): | ^ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here 62 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from kernel/dma/direct.c:7: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:1143: In file included from include/linux/huge_mm.h:7: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:187:1: warning: array index 3 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds] 187 | _SIG_SET_OP(signotset, _sig_not) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/signal.h:174:10: note: expanded from macro '_SIG_SET_OP' 174 | case 4: set->sig[3] = op(set->sig[3]); \ | ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here 62 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from kernel/dma/direct.c:7: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:1143: In file included from include/linux/huge_mm.h:7: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:187:1: warning: array index 2 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds] 187 | _SIG_SET_OP(signotset, _sig_not) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/signal.h:175:20: note: expanded from macro '_SIG_SET_OP' 175 | set->sig[2] = op(set->sig[2]); \ | ^ ~ include/linux/signal.h:186:24: note: expanded from macro '_sig_not' 186 | #define _sig_not(x) (~(x)) | ^ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here 62 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from kernel/dma/direct.c:7: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:1143: In file included from include/linux/huge_mm.h:7: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:187:1: warning: array index 2 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds] 187 | _SIG_SET_OP(signotset, _sig_not) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/signal.h:175:3: note: expanded from macro '_SIG_SET_OP' 175 | set->sig[2] = op(set->sig[2]); \ | ^ ~ include/uapi/asm-generic/signal.h:62:2: note: array 'sig' declared here 62 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from kernel/dma/direct.c:7: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:2234: 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_" | ~~~~~~~~~~~ ^ ~~~ In file included from kernel/dma/direct.c:7: In file included from include/linux/memblock.h:13: In file included from arch/hexagon/include/asm/dma.h:9: In file included from arch/hexagon/include/asm/io.h:328: 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/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from kernel/dma/direct.c:7: In file included from include/linux/memblock.h:13: In file included from arch/hexagon/include/asm/dma.h:9: In file included from arch/hexagon/include/asm/io.h:328: 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/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from kernel/dma/direct.c:7: In file included from include/linux/memblock.h:13: In file included from arch/hexagon/include/asm/dma.h:9: In file included from arch/hexagon/include/asm/io.h:328: 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); | ~~~~~~~~~~ ^ >> kernel/dma/direct.c:147:20: warning: shift count >= width of type [-Wshift-count-overflow] 146 | if (IS_ENABLED(CONFIG_ZONE_DMA32) && | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 147 | phys_limit < DMA_BIT_MASK(64) && | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ 148 | !(gfp & (GFP_DMA32 | GFP_DMA))) { | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:77:54: note: expanded from macro 'DMA_BIT_MASK' 77 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) | ^ include/linux/compiler.h:55:47: note: expanded from macro 'if' 55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:57:52: note: expanded from macro '__trace_if_var' 57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ >> kernel/dma/direct.c:147:20: warning: shift count >= width of type [-Wshift-count-overflow] 146 | if (IS_ENABLED(CONFIG_ZONE_DMA32) && | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 147 | phys_limit < DMA_BIT_MASK(64) && | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ 148 | !(gfp & (GFP_DMA32 | GFP_DMA))) { | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:77:54: note: expanded from macro 'DMA_BIT_MASK' 77 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) | ^ include/linux/compiler.h:55:47: note: expanded from macro 'if' 55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:57:61: note: expanded from macro '__trace_if_var' 57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ >> kernel/dma/direct.c:147:20: warning: shift count >= width of type [-Wshift-count-overflow] 146 | if (IS_ENABLED(CONFIG_ZONE_DMA32) && | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 147 | phys_limit < DMA_BIT_MASK(64) && | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ 148 | !(gfp & (GFP_DMA32 | GFP_DMA))) { | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:77:54: note: expanded from macro 'DMA_BIT_MASK' 77 | #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) | ^ include/linux/compiler.h:55:47: note: expanded from macro 'if' 55 | #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:57:86: note: expanded from macro '__trace_if_var' 57 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ~~~~~~~~~~~~~~~~~^~~~~ include/linux/compiler.h:68:3: note: expanded from macro '__trace_if_value' 68 | (cond) ? \ | ^~~~ 38 warnings and 3 errors generated. -- In file included from drivers/iio/adc/fsl-imx25-gcq.c:12: In file included from include/linux/interrupt.h:11: 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:14: In file included from arch/hexagon/include/asm/io.h:328: 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/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/iio/adc/fsl-imx25-gcq.c:12: In file included from include/linux/interrupt.h:11: 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:14: In file included from arch/hexagon/include/asm/io.h:328: 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/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/iio/adc/fsl-imx25-gcq.c:12: In file included from include/linux/interrupt.h:11: 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:14: In file included from arch/hexagon/include/asm/io.h:328: 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); | ~~~~~~~~~~ ^ In file included from drivers/iio/adc/fsl-imx25-gcq.c:19: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:21: include/linux/mm.h:877:2: error: call to undeclared function 'vma_lock_init'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 877 | vma_lock_init(&vma->vm_lock); | ^ include/linux/mm.h:877:2: note: did you mean 'osq_lock_init'? include/linux/osq_lock.h:23:20: note: 'osq_lock_init' declared here 23 | static inline void osq_lock_init(struct optimistic_spin_queue *lock) | ^ In file included from drivers/iio/adc/fsl-imx25-gcq.c:19: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:21: include/linux/mm.h:877:22: error: no member named 'vm_lock' in 'struct vm_area_struct' 877 | vma_lock_init(&vma->vm_lock); | ~~~ ^ include/linux/mm.h:878:7: error: no member named 'vm_lock_seq' in 'struct vm_area_struct' 878 | vma->vm_lock_seq = UINT_MAX; | ~~~ ^ In file included from drivers/iio/adc/fsl-imx25-gcq.c:19: In file included from include/linux/regulator/consumer.h:35: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:21: In file included from include/linux/mm.h:2234: 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_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/iio/adc/fsl-imx25-gcq.c:116:8: warning: shift count is negative [-Wshift-count-negative] 116 | MX25_ADCQ_ITEM(0, chan->channel)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/mfd/imx25-tsadc.h:54:3: note: expanded from macro 'MX25_ADCQ_ITEM' 54 | _MX25_ADCQ_ITEM((item) - 8, (x)) : _MX25_ADCQ_ITEM((item), (x))) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/mfd/imx25-tsadc.h:52:39: note: expanded from macro '_MX25_ADCQ_ITEM' 52 | #define _MX25_ADCQ_ITEM(item, x) ((x) << ((item) * 4)) | ^ ~~~~~~~~~~~~ 8 warnings and 3 errors generated. vim +147 kernel/dma/direct.c aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 117 26749b3201ab05e kernel/dma/direct.c Christoph Hellwig 2020-06-15 118 static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size, 92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 119 gfp_t gfp, bool allow_highmem) a8463d4b0e47d1f lib/dma-noop.c Christian Borntraeger 2016-02-02 120 { 90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 121 int node = dev_to_node(dev); 080321d3b3139b3 lib/dma-direct.c Christoph Hellwig 2017-12-22 122 struct page *page = NULL; a7ba70f1787f977 kernel/dma/direct.c Nicolas Saenz Julienne 2019-11-21 123 u64 phys_limit; a8463d4b0e47d1f lib/dma-noop.c Christian Borntraeger 2016-02-02 124 633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 125 WARN_ON_ONCE(!PAGE_ALIGNED(size)); 633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 126 aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 127 if (is_swiotlb_for_alloc(dev)) aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 128 return dma_direct_alloc_swiotlb(dev, size); aea7e2a86a94b25 kernel/dma/direct.c Christoph Hellwig 2021-10-21 129 25a4ce564921db0 kernel/dma/direct.c Petr Tesarik 2023-02-20 130 gfp |= dma_direct_optimal_gfp_mask(dev, &phys_limit); 633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 131 page = dma_alloc_contiguous(dev, size, gfp); 92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 132 if (page) { 92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 133 if (!dma_coherent_ok(dev, page_to_phys(page), size) || 92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 134 (!allow_highmem && PageHighMem(page))) { 633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 135 dma_free_contiguous(dev, page, size); 90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 136 page = NULL; 90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 137 } 92826e967535db2 kernel/dma/direct.c Christoph Hellwig 2022-04-23 138 } 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 139 again: 90ae409f9eb3bca kernel/dma/direct.c Christoph Hellwig 2019-08-20 140 if (!page) 633d5fce78a61e8 kernel/dma/direct.c David Rientjes 2020-06-11 141 page = alloc_pages_node(node, gfp, get_order(size)); 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 142 if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) { f689a3ab7b8ece9 kernel/dma/direct.c Chen Yu 2024-08-31 143 __free_pages(page, get_order(size)); 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 144 page = NULL; 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 145 de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 146 if (IS_ENABLED(CONFIG_ZONE_DMA32) && a7ba70f1787f977 kernel/dma/direct.c Nicolas Saenz Julienne 2019-11-21 @147 phys_limit < DMA_BIT_MASK(64) && de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 148 !(gfp & (GFP_DMA32 | GFP_DMA))) { de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 149 gfp |= GFP_DMA32; de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 150 goto again; de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 151 } de7eab301de7886 lib/dma-direct.c Takashi Iwai 2018-04-16 152 fbce251baa6e357 kernel/dma/direct.c Christoph Hellwig 2019-02-13 153 if (IS_ENABLED(CONFIG_ZONE_DMA) && !(gfp & GFP_DMA)) { 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 154 gfp = (gfp & ~GFP_DMA32) | GFP_DMA; 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 155 goto again; 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 156 } 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 157 } 95f183916d4b0bc lib/dma-direct.c Christoph Hellwig 2018-01-09 158 b18814e767a4455 kernel/dma/direct.c Christoph Hellwig 2018-11-04 159 return page; b18814e767a4455 kernel/dma/direct.c Christoph Hellwig 2018-11-04 160 } b18814e767a4455 kernel/dma/direct.c Christoph Hellwig 2018-11-04 161 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
