Messages in this thread | | | Subject | Re: linux-next: Tree for Apr 6 (arch/x86/mm/init_64.c) | From | Randy Dunlap <> | Date | Tue, 6 Apr 2021 11:32:37 -0700 |
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On 4/6/21 5:31 AM, Stephen Rothwell wrote: > Hi all, > > Changes since 20210401: >
on x86_64: # CONFIG_SPARSEMEM_VMEMMAP is not set
gcc (SUSE Linux) 7.5.0
../arch/x86/mm/init_64.c: In function 'remove_pmd_table': ../arch/x86/mm/init_64.c:1127:8: error: implicit declaration of function 'vmemmap_pmd_is_unused'; did you mean 'vmemmap_pmd_populate'? [-Werror=implicit-function-declaration] vmemmap_pmd_is_unused(addr, next)) { ^~~~~~~~~~~~~~~~~~~~~ vmemmap_pmd_populate
Looks like that compound "if" is too much for gcc 7.5.0 to handle:
} else if (IS_ENABLED(CONFIG_SPARSEMEM_VMEMMAP) && vmemmap_pmd_is_unused(addr, next)) { free_hugepage_table(pmd_page(*pmd), altmap); spin_lock(&init_mm.page_table_lock); pmd_clear(pmd); spin_unlock(&init_mm.page_table_lock); }
-- ~Randy Reported-by: Randy Dunlap <rdunlap@infradead.org>
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