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 removing the pte_frag
initialization in setup-common.c.
This is possible, because the compiler will do the
initialization, since the mm_context is a sub struct of
init_mm. init_mm is declared in mm_types.h as external linkage.
according to C99 6.2.4.3:
"An object whose identifier is declared with external linkage
[...] has static storage duration."
C99 defines in 6.7.8.10 that: "
If an object that has static storage duration is not
initialized explicitly, then:
- if it has pointer type, it is initialized to a null pointer
[...]
"
Signed-off-by: Christian Lamparter <chunk...@gmail.com>
---
arch/powerpc/kernel/setup-common.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/powerpc/kernel/setup-common.c
b/arch/powerpc/kernel/setup-common.c
index 0ac741fae90e..2e3bc16d02b2 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -904,9 +904,6 @@ void __init setup_arch(char **cmdline_p)
#endif
#endif
-#ifdef CONFIG_PPC_64K_PAGES
- init_mm.context.pte_frag = NULL;
-#endif
#ifdef CONFIG_SPAPR_TCE_IOMMU
mm_iommu_init(&init_mm);
#endif
--
2.14.2
