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charset=us-ascii Content-Disposition: inline Hi Kees, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 17712b7ea0756799635ba159cc773082230ed028 commit: 72e0fe2241ce113cbba339ca8c2450b167774530 mm/slab: Introduce kmem_buckets typedef date: 4 weeks ago config: m68k-alldefconfig (https://download.01.org/0day-ci/archive/20240803/202408032258.ShUXX4qU-lkp@intel.com/config) compiler: m68k-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240803/202408032258.ShUXX4qU-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202408032258.ShUXX4qU-lkp@intel.com/ All errors (new ones prefixed by >>): arch/m68k/include/asm/page.h:10:25: error: 'CONFIG_PAGE_SHIFT' undeclared here (not in a function); did you mean 'CONFIG_LOG_BUF_SHIFT'? 10 | #define PAGE_SHIFT CONFIG_PAGE_SHIFT | ^~~~~~~~~~~~~~~~~ arch/m68k/include/asm/page.h:11:40: note: in expansion of macro 'PAGE_SHIFT' 11 | #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) | ^~~~~~~~~~ arch/m68k/include/asm/thread_info.h:23:26: note: in expansion of macro 'PAGE_SIZE' 23 | #define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) | ^~~~~~~~~ include/linux/sched.h:1851:29: note: in expansion of macro 'THREAD_SIZE' 1851 | unsigned long stack[THREAD_SIZE/sizeof(long)]; | ^~~~~~~~~~~ arch/m68k/include/asm/page.h:10:25: warning: "CONFIG_PAGE_SHIFT" is not defined, evaluates to 0 [-Wundef] 10 | #define PAGE_SHIFT CONFIG_PAGE_SHIFT | ^~~~~~~~~~~~~~~~~ arch/m68k/include/asm/page.h:11:40: note: in expansion of macro 'PAGE_SHIFT' 11 | #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) | ^~~~~~~~~~ include/linux/mm_types.h:531:6: note: in expansion of macro 'PAGE_SIZE' 531 | #if (PAGE_SIZE < PAGE_FRAG_CACHE_MAX_SIZE) | ^~~~~~~~~ In file included from include/vdso/const.h:5, from include/linux/const.h:4, from include/linux/bits.h:5, from include/linux/ratelimit_types.h:5, from include/linux/printk.h:9, from include/asm-generic/bug.h:22, from arch/m68k/include/asm/bug.h:32, from include/linux/bug.h:5, from include/linux/thread_info.h:13: arch/m68k/include/asm/page.h:10:25: warning: "CONFIG_PAGE_SHIFT" is not defined, evaluates to 0 [-Wundef] 10 | #define PAGE_SHIFT CONFIG_PAGE_SHIFT | ^~~~~~~~~~~~~~~~~ include/uapi/linux/const.h:32:50: note: in definition of macro '__ALIGN_KERNEL_MASK' 32 | #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) | ^~~~ include/linux/mm_types.h:508:41: note: in expansion of macro '__ALIGN_MASK' 508 | #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) | ^~~~~~~~~~~~ arch/m68k/include/asm/page.h:11:40: note: in expansion of macro 'PAGE_SHIFT' 11 | #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) | ^~~~~~~~~~ arch/m68k/include/asm/page.h:12:28: note: in expansion of macro 'PAGE_SIZE' 12 | #define PAGE_MASK (~(PAGE_SIZE-1)) | ^~~~~~~~~ include/linux/mm_types.h:508:62: note: in expansion of macro 'PAGE_MASK' 508 | #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) | ^~~~~~~~~ include/linux/mm_types.h:531:18: note: in expansion of macro 'PAGE_FRAG_CACHE_MAX_SIZE' 531 | #if (PAGE_SIZE < PAGE_FRAG_CACHE_MAX_SIZE) | ^~~~~~~~~~~~~~~~~~~~~~~~ arch/m68k/include/asm/page.h:10:25: warning: "CONFIG_PAGE_SHIFT" is not defined, evaluates to 0 [-Wundef] 10 | #define PAGE_SHIFT CONFIG_PAGE_SHIFT | ^~~~~~~~~~~~~~~~~ include/uapi/linux/const.h:32:61: note: in definition of macro '__ALIGN_KERNEL_MASK' 32 | #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) | ^~~~ include/linux/mm_types.h:508:41: note: in expansion of macro '__ALIGN_MASK' 508 | #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) | ^~~~~~~~~~~~ arch/m68k/include/asm/page.h:11:40: note: in expansion of macro 'PAGE_SHIFT' 11 | #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) | ^~~~~~~~~~ arch/m68k/include/asm/page.h:12:28: note: in expansion of macro 'PAGE_SIZE' 12 | #define PAGE_MASK (~(PAGE_SIZE-1)) | ^~~~~~~~~ include/linux/mm_types.h:508:62: note: in expansion of macro 'PAGE_MASK' 508 | #define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) | ^~~~~~~~~ include/linux/mm_types.h:531:18: note: in expansion of macro 'PAGE_FRAG_CACHE_MAX_SIZE' 531 | #if (PAGE_SIZE < PAGE_FRAG_CACHE_MAX_SIZE) | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/init.h:5, from include/linux/printk.h:6: arch/m68k/include/asm/page.h:10:25: error: expression in static assertion is not an integer 10 | #define PAGE_SHIFT CONFIG_PAGE_SHIFT | ^~~~~~~~~~~~~~~~~ include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ include/linux/slab.h:527:1: note: in expansion of macro 'static_assert' 527 | static_assert(PAGE_SHIFT <= 20); | ^~~~~~~~~~~~~ include/linux/slab.h:527:15: note: in expansion of macro 'PAGE_SHIFT' 527 | static_assert(PAGE_SHIFT <= 20); | ^~~~~~~~~~ In file included from include/linux/irq.h:21, from include/asm-generic/hardirq.h:17, from ./arch/m68k/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:11, from include/linux/interrupt.h:11, from include/linux/kernel_stat.h:9, from arch/m68k/kernel/asm-offsets.c:16: include/linux/slab.h:593:33: warning: 'assume_aligned' attribute argument is not an integer constant [-Wattributes] 593 | __assume_page_alignment __alloc_size(1); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/slab.h:596:33: warning: 'assume_aligned' attribute argument is not an integer constant [-Wattributes] 596 | __assume_page_alignment __alloc_size(1); | ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/slab.h: In function 'kmalloc_noprof': >> include/linux/slab.h:663:78: error: subscripted value is neither array nor pointer nor vector 663 | kmalloc_caches[kmalloc_type(flags, _RET_IP_)][index], | ^ include/linux/slab.h:656:30: warning: variable 'index' set but not used [-Wunused-but-set-variable] 656 | unsigned int index; | ^~~~~ include/linux/slab.h: In function 'kmalloc_node_noprof': include/linux/slab.h:680:78: error: subscripted value is neither array nor pointer nor vector 680 | kmalloc_caches[kmalloc_type(flags, _RET_IP_)][index], | ^ include/linux/slab.h:673:30: warning: variable 'index' set but not used [-Wunused-but-set-variable] 673 | unsigned int index; | ^~~~~ make[3]: *** [scripts/Makefile.build:117: arch/m68k/kernel/asm-offsets.s] Error 1 make[3]: Target 'prepare' not remade because of errors. make[2]: *** [Makefile:1208: prepare0] Error 2 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:240: __sub-make] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:240: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +663 include/linux/slab.h f1b6eb6e6be149 Christoph Lameter 2013-09-04 572 a0a44d9175b349 Vlastimil Babka 2024-05-27 573 /* a0a44d9175b349 Vlastimil Babka 2024-05-27 574 * The following functions are not to be used directly and are intended only a0a44d9175b349 Vlastimil Babka 2024-05-27 575 * for internal use from kmalloc() and kmalloc_node() a0a44d9175b349 Vlastimil Babka 2024-05-27 576 * with the exception of kunit tests a0a44d9175b349 Vlastimil Babka 2024-05-27 577 */ a0a44d9175b349 Vlastimil Babka 2024-05-27 578 a0a44d9175b349 Vlastimil Babka 2024-05-27 579 void *__kmalloc_noprof(size_t size, gfp_t flags) a0a44d9175b349 Vlastimil Babka 2024-05-27 580 __assume_kmalloc_alignment __alloc_size(1); f1b6eb6e6be149 Christoph Lameter 2013-09-04 581 a0a44d9175b349 Vlastimil Babka 2024-05-27 582 void *__kmalloc_node_noprof(size_t size, gfp_t flags, int node) a0a44d9175b349 Vlastimil Babka 2024-05-27 583 __assume_kmalloc_alignment __alloc_size(1); a0a44d9175b349 Vlastimil Babka 2024-05-27 584 a0a44d9175b349 Vlastimil Babka 2024-05-27 585 void *__kmalloc_cache_noprof(struct kmem_cache *s, gfp_t flags, size_t size) a0a44d9175b349 Vlastimil Babka 2024-05-27 586 __assume_kmalloc_alignment __alloc_size(3); 7bd230a26648ac Suren Baghdasaryan 2024-03-21 587 a0a44d9175b349 Vlastimil Babka 2024-05-27 588 void *__kmalloc_cache_node_noprof(struct kmem_cache *s, gfp_t gfpflags, a0a44d9175b349 Vlastimil Babka 2024-05-27 589 int node, size_t size) a0a44d9175b349 Vlastimil Babka 2024-05-27 590 __assume_kmalloc_alignment __alloc_size(4); 7bd230a26648ac Suren Baghdasaryan 2024-03-21 591 a0a44d9175b349 Vlastimil Babka 2024-05-27 592 void *__kmalloc_large_noprof(size_t size, gfp_t flags) a0a44d9175b349 Vlastimil Babka 2024-05-27 @593 __assume_page_alignment __alloc_size(1); a0c3b940023eef Hyeonggon Yoo 2022-08-17 594 a0a44d9175b349 Vlastimil Babka 2024-05-27 595 void *__kmalloc_large_node_noprof(size_t size, gfp_t flags, int node) a0a44d9175b349 Vlastimil Babka 2024-05-27 596 __assume_page_alignment __alloc_size(1); a0c3b940023eef Hyeonggon Yoo 2022-08-17 597 f1b6eb6e6be149 Christoph Lameter 2013-09-04 598 /** 838de63b101147 Vlastimil Babka 2022-11-10 599 * kmalloc - allocate kernel memory f1b6eb6e6be149 Christoph Lameter 2013-09-04 600 * @size: how many bytes of memory are required. 838de63b101147 Vlastimil Babka 2022-11-10 601 * @flags: describe the allocation context f1b6eb6e6be149 Christoph Lameter 2013-09-04 602 * f1b6eb6e6be149 Christoph Lameter 2013-09-04 603 * kmalloc is the normal method of allocating memory f1b6eb6e6be149 Christoph Lameter 2013-09-04 604 * for objects smaller than page size in the kernel. 7e3528c3660a2e Randy Dunlap 2013-11-22 605 * 59bb47985c1db2 Vlastimil Babka 2019-10-06 606 * The allocated object address is aligned to at least ARCH_KMALLOC_MINALIGN 59bb47985c1db2 Vlastimil Babka 2019-10-06 607 * bytes. For @size of power of two bytes, the alignment is also guaranteed ad59baa3169591 Vlastimil Babka 2024-07-03 608 * to be at least to the size. For other sizes, the alignment is guaranteed to ad59baa3169591 Vlastimil Babka 2024-07-03 609 * be at least the largest power-of-two divisor of @size. 59bb47985c1db2 Vlastimil Babka 2019-10-06 610 * 01598ba6b1a863 Mike Rapoport 2018-11-11 611 * The @flags argument may be one of the GFP flags defined at e9d198f2be851f Thorsten Scherer 2023-03-12 612 * include/linux/gfp_types.h and described at 01598ba6b1a863 Mike Rapoport 2018-11-11 613 * :ref:`Documentation/core-api/mm-api.rst ` 7e3528c3660a2e Randy Dunlap 2013-11-22 614 * 01598ba6b1a863 Mike Rapoport 2018-11-11 615 * The recommended usage of the @flags is described at 2370ae4b1d5aa7 Mauro Carvalho Chehab 2020-04-10 616 * :ref:`Documentation/core-api/memory-allocation.rst ` 7e3528c3660a2e Randy Dunlap 2013-11-22 617 * 01598ba6b1a863 Mike Rapoport 2018-11-11 618 * Below is a brief outline of the most useful GFP flags 7e3528c3660a2e Randy Dunlap 2013-11-22 619 * 01598ba6b1a863 Mike Rapoport 2018-11-11 620 * %GFP_KERNEL 01598ba6b1a863 Mike Rapoport 2018-11-11 621 * Allocate normal kernel ram. May sleep. 7e3528c3660a2e Randy Dunlap 2013-11-22 622 * 01598ba6b1a863 Mike Rapoport 2018-11-11 623 * %GFP_NOWAIT 01598ba6b1a863 Mike Rapoport 2018-11-11 624 * Allocation will not sleep. 7e3528c3660a2e Randy Dunlap 2013-11-22 625 * 01598ba6b1a863 Mike Rapoport 2018-11-11 626 * %GFP_ATOMIC 01598ba6b1a863 Mike Rapoport 2018-11-11 627 * Allocation will not sleep. May use emergency pools. 7e3528c3660a2e Randy Dunlap 2013-11-22 628 * 7e3528c3660a2e Randy Dunlap 2013-11-22 629 * Also it is possible to set different flags by OR'ing 7e3528c3660a2e Randy Dunlap 2013-11-22 630 * in one or more of the following additional @flags: 7e3528c3660a2e Randy Dunlap 2013-11-22 631 * 838de63b101147 Vlastimil Babka 2022-11-10 632 * %__GFP_ZERO 838de63b101147 Vlastimil Babka 2022-11-10 633 * Zero the allocated memory before returning. Also see kzalloc(). 838de63b101147 Vlastimil Babka 2022-11-10 634 * 01598ba6b1a863 Mike Rapoport 2018-11-11 635 * %__GFP_HIGH 01598ba6b1a863 Mike Rapoport 2018-11-11 636 * This allocation has high priority and may use emergency pools. 7e3528c3660a2e Randy Dunlap 2013-11-22 637 * 01598ba6b1a863 Mike Rapoport 2018-11-11 638 * %__GFP_NOFAIL 01598ba6b1a863 Mike Rapoport 2018-11-11 639 * Indicate that this allocation is in no way allowed to fail 7e3528c3660a2e Randy Dunlap 2013-11-22 640 * (think twice before using). 7e3528c3660a2e Randy Dunlap 2013-11-22 641 * 01598ba6b1a863 Mike Rapoport 2018-11-11 642 * %__GFP_NORETRY 01598ba6b1a863 Mike Rapoport 2018-11-11 643 * If memory is not immediately available, 7e3528c3660a2e Randy Dunlap 2013-11-22 644 * then give up at once. 7e3528c3660a2e Randy Dunlap 2013-11-22 645 * 01598ba6b1a863 Mike Rapoport 2018-11-11 646 * %__GFP_NOWARN 01598ba6b1a863 Mike Rapoport 2018-11-11 647 * If allocation fails, don't issue any warnings. 7e3528c3660a2e Randy Dunlap 2013-11-22 648 * 01598ba6b1a863 Mike Rapoport 2018-11-11 649 * %__GFP_RETRY_MAYFAIL 01598ba6b1a863 Mike Rapoport 2018-11-11 650 * Try really hard to succeed the allocation but fail dcda9b04713c3f Michal Hocko 2017-07-12 651 * eventually. f1b6eb6e6be149 Christoph Lameter 2013-09-04 652 */ 7bd230a26648ac Suren Baghdasaryan 2024-03-21 653 static __always_inline __alloc_size(1) void *kmalloc_noprof(size_t size, gfp_t flags) f1b6eb6e6be149 Christoph Lameter 2013-09-04 654 { 6fa57d78aa7f21 Kees Cook 2022-11-17 655 if (__builtin_constant_p(size) && size) { cc252eae85e095 Vlastimil Babka 2018-10-26 656 unsigned int index; 3bf019334fbbb5 Kees Cook 2022-11-17 657 f1b6eb6e6be149 Christoph Lameter 2013-09-04 658 if (size > KMALLOC_MAX_CACHE_SIZE) a0a44d9175b349 Vlastimil Babka 2024-05-27 659 return __kmalloc_large_noprof(size, flags); f1b6eb6e6be149 Christoph Lameter 2013-09-04 660 cc252eae85e095 Vlastimil Babka 2018-10-26 661 index = kmalloc_index(size); a0a44d9175b349 Vlastimil Babka 2024-05-27 662 return __kmalloc_cache_noprof( 3c615294058429 GONG, Ruiqi 2023-07-14 @663 kmalloc_caches[kmalloc_type(flags, _RET_IP_)][index], f1b6eb6e6be149 Christoph Lameter 2013-09-04 664 flags, size); f1b6eb6e6be149 Christoph Lameter 2013-09-04 665 } 7bd230a26648ac Suren Baghdasaryan 2024-03-21 666 return __kmalloc_noprof(size, flags); f1b6eb6e6be149 Christoph Lameter 2013-09-04 667 } 7bd230a26648ac Suren Baghdasaryan 2024-03-21 668 #define kmalloc(...) alloc_hooks(kmalloc_noprof(__VA_ARGS__)) ce6a50263d4dde Christoph Lameter 2013-01-10 669 :::::: The code at line 663 was first introduced by commit :::::: 3c6152940584290668b35fa0800026f6a1ae05fe Randomized slab caches for kmalloc() :::::: TO: GONG, Ruiqi :::::: CC: Vlastimil Babka -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki