Miles Chen ccbd6283a9 mm/sparse: fix check_usemap_section_nr warnings ... I see a "virt_to_phys used for non-linear address" warning from check_usemap_section_nr() on arm64 platforms. In current implementation of NODE_DATA, if CONFIG_NEED_MULTIPLE_NODES=y, pglist_data is dynamically allocated and assigned to node_data[]. For example, in arch/arm64/include/asm/mmzone.h: extern struct pglist_data *node_data[]; #define NODE_DATA(nid) (node_data[(nid)]) If CONFIG_NEED_MULTIPLE_NODES=n, pglist_data is defined as a global variable named "contig_page_data". For example, in include/linux/mmzone.h: extern struct pglist_data contig_page_data; #define NODE_DATA(nid) (&contig_page_data) If CONFIG_DEBUG_VIRTUAL is not enabled, __pa() can handle both dynamically allocated linear addresses and symbol addresses. However, if (CONFIG_DEBUG_VIRTUAL=y && CONFIG_NEED_MULTIPLE_NODES=n) we can see the "virt_to_phys used for non-linear address" warning because that &contig_page_data is not a linear address on arm64. Warning message: virt_to_phys used for non-linear address: (contig_page_data+0x0/0x1c00) WARNING: CPU: 0 PID: 0 at arch/arm64/mm/physaddr.c:15 __virt_to_phys+0x58/0x68 Modules linked in: CPU: 0 PID: 0 Comm: swapper Tainted: G W 5.13.0-rc1-00074-g1140ab592e2e #3 Hardware name: linux,dummy-virt (DT) pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO BTYPE=--) Call trace: __virt_to_phys+0x58/0x68 check_usemap_section_nr+0x50/0xfc sparse_init_nid+0x1ac/0x28c sparse_init+0x1c4/0x1e0 bootmem_init+0x60/0x90 setup_arch+0x184/0x1f0 start_kernel+0x78/0x488 To fix it, create a small function to handle both translation. Link: https://lkml.kernel.org/r/1623058729-27264-1-git-send-email-miles.chen@mediatek.com Signed-off-by: Miles Chen <miles.chen@mediatek.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Baoquan He <bhe@redhat.com> Cc: Kazu <k-hagio-ab@nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-06-16 09:24:43 -07:00
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kasan
kfence
backing-dev.c
balloon_compaction.c
cleancache.c
cma_debug.c
cma_sysfs.c
cma.c
cma.h
compaction.c
debug_page_ref.c
debug_vm_pgtable.c
debug.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c
frontswap.c
gup_test.c
gup_test.h
gup.c
highmem.c
hmm.c
huge_memory.c	mm: thp: replace DEBUG_VM BUG with VM_WARN when unmap fails for split	2021-06-16 09:24:42 -07:00
hugetlb_cgroup.c
hugetlb.c
hwpoison-inject.c
init-mm.c
internal.h	mm/thp: fix vma_address() if virtual address below file offset	2021-06-16 09:24:42 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig
Kconfig.debug
khugepaged.c
kmemleak.c
ksm.c
list_lru.c
maccess.c
madvise.c
Makefile
mapping_dirty_helpers.c
memblock.c
memcontrol.c
memfd.c
memory_hotplug.c
memory-failure.c
memory.c	mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()	2021-06-16 09:24:42 -07:00
mempolicy.c
mempool.c
memremap.c
memtest.c
migrate.c	mm, thp: use head page in __migration_entry_wait()	2021-06-16 09:24:42 -07:00
mincore.c
mlock.c
mm_init.c
mmap_lock.c
mmap.c
mmu_gather.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c
oom_kill.c
page_alloc.c
page_counter.c
page_ext.c
page_idle.c
page_io.c
page_isolation.c
page_owner.c
page_poison.c
page_reporting.c
page_reporting.h
page_vma_mapped.c	mm/thp: fix vma_address() if virtual address below file offset	2021-06-16 09:24:42 -07:00
page-writeback.c
pagewalk.c
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgalloc-track.h
pgtable-generic.c	mm/thp: fix __split_huge_pmd_locked() on shmem migration entry	2021-06-16 09:24:42 -07:00
process_vm_access.c
ptdump.c
readahead.c
rmap.c	mm/thp: fix page_address_in_vma() on file THP tails	2021-06-16 09:24:42 -07:00
rodata_test.c
shmem.c
shuffle.c
shuffle.h
slab_common.c
slab.c
slab.h
slob.c
slub.c	mm/slub.c: include swab.h	2021-06-16 09:24:42 -07:00
sparse-vmemmap.c
sparse.c	mm/sparse: fix check_usemap_section_nr warnings	2021-06-16 09:24:43 -07:00
swap_cgroup.c
swap_slots.c
swap_state.c
swap.c
swapfile.c
truncate.c	mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()	2021-06-16 09:24:42 -07:00
usercopy.c
userfaultfd.c
util.c
vmacache.c
vmalloc.c
vmpressure.c
vmscan.c
vmstat.c
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c
zswap.c