On sparc64, we see: mm/hmm.c: In function 'hmm_vma_walk_pmd': mm/hmm.c:371:53: error: macro "pte_index" requires 2 arguments, but only 1 given mm/hmm.c:371:39: error: 'pte_index' undeclared (first use in this function) ...and on MIPS 64, we see: mm/hmm.c:57:22: error: field 'mmu_notifier' has incomplete type mm/hmm.c: In function 'hmm_register': mm/hmm.c:98:2: error: implicit declaration of function '__mmu_notifier_register' [-Werror=implicit-function-declaration] mm/hmm.c:111:3: error: implicit declaration of function 'mmu_notifier_unregister' [-Werror=implicit-function-declaration] ...and on Alpha, we see: mm/hmm.c: In function 'hmm_vma_walk_pmd': mm/hmm.c:371:4: error: implicit declaration of function 'pmd_pfn' mm/hmm.c:371:4: error: implicit declaration of function 'pte_index' ...and on PaRISC 64 we see: include/linux/hmm.h:405:7: warning: 'struct migrate_vma_ops' declared inside parameter list include/linux/hmm.h:405:7: warning: its scope is only this definition or declaration, which is probably not what you want mm/hmm.c: In function 'hmm_vma_walk_pmd': mm/hmm.c:371:4: error: implicit declaration of function 'pmd_pfn' [...] Set the dependency to the three arch that currently seem to build without issue -- ARM_64, X86_64 and S390. Since ia64 and ppc64 don't set CONFIG_64BIT, they were already excluded by the original dependency. The failing arch can be re-added as demand dictates, if/when they have been validated to build and function. Cc: Jérôme Glisse <jglisse@xxxxxxxxxx> Cc: Evgeny Baskakov <ebaskakov@xxxxxxxxxx> Cc: John Hubbard <jhubbard@xxxxxxxxxx> Cc: Mark Hairgrove <mhairgrove@xxxxxxxxxx> Cc: Sherry Cheung <SCheung@xxxxxxxxxx> Cc: Subhash Gutti <sgutti@xxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx> --- mm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/Kconfig b/mm/Kconfig index 3e9c31bf9aaa..6c27d2003a63 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -293,6 +293,7 @@ config ARCH_HAS_HMM bool default y depends on MMU && 64BIT + depends on ARM64 || X86_64 || S390 config HMM bool -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
