[PATCH v2] powerpc: fix compile error on 64K pages on 40x, 44x
Christian Lamparter
chunkeey at googlemail.com
Fri Sep 29 04:32:32 AEST 2017
The mmu context on the 40x, 44x does not define pte_frag
entry. This causes gcc abort the compilation due to:
setup-common.c: In function ‘setup_arch’:
setup-common.c:908: error: ‘mm_context_t’ has no ‘pte_frag’
This patch fixes the issue by adding additional guard
conditions, that limit the initialization to just
platforms that define the pte_frag variable in the
mmu context.
Signed-off-by: Christian Lamparter <chunkeey at googlemail.com>
---
arch/powerpc/kernel/setup-common.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 0ac741fae90e..4a22ec6b34de 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -904,7 +904,8 @@ void __init setup_arch(char **cmdline_p)
#endif
#endif
-#ifdef CONFIG_PPC_64K_PAGES
+#if defined(CONFIG_PPC_64K_PAGES) && \
+ (defined(CONFIG_PPC_BOOK3S_64) || defined(CONFIG_PPC_BOOK3E_MMU))
init_mm.context.pte_frag = NULL;
#endif
#ifdef CONFIG_SPAPR_TCE_IOMMU
--
2.14.2
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