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Subject[PATCH] powerpc/47x: Remove early_init_mmu_47x() to fix no previous prototype
Date
4xx/iss476-smp_defconfig leads to:

CC arch/powerpc/mm/nohash/tlb.o
arch/powerpc/mm/nohash/tlb.c:322:13: error: no previous prototype for 'early_init_mmu_47x' [-Werror=missing-prototypes]
322 | void __init early_init_mmu_47x(void)
| ^~~~~~~~~~~~~~~~~~

early_init_mmu_47x() is used only at one place and only locally.

Fold it into its only caller and remove it.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
arch/powerpc/mm/mmu_decl.h | 1 +
arch/powerpc/mm/nohash/tlb.c | 19 +++++--------------
2 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index c6dccb4f06dc..7f9ff0640124 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -110,6 +110,7 @@ extern void MMU_init_hw(void);
void MMU_init_hw_patch(void);
unsigned long mmu_mapin_ram(unsigned long base, unsigned long top);
#endif
+void mmu_init_secondary(int cpu);

#ifdef CONFIG_PPC_E500
extern unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx,
diff --git a/arch/powerpc/mm/nohash/tlb.c b/arch/powerpc/mm/nohash/tlb.c
index a903b308acc5..5ffa0af4328a 100644
--- a/arch/powerpc/mm/nohash/tlb.c
+++ b/arch/powerpc/mm/nohash/tlb.c
@@ -318,17 +318,6 @@ EXPORT_SYMBOL(flush_tlb_page);

#endif /* CONFIG_SMP */

-#ifdef CONFIG_PPC_47x
-void __init early_init_mmu_47x(void)
-{
-#ifdef CONFIG_SMP
- unsigned long root = of_get_flat_dt_root();
- if (of_get_flat_dt_prop(root, "cooperative-partition", NULL))
- mmu_clear_feature(MMU_FTR_USE_TLBIVAX_BCAST);
-#endif /* CONFIG_SMP */
-}
-#endif /* CONFIG_PPC_47x */
-
/*
* Flush kernel TLB entries in the given range
*/
@@ -746,8 +735,10 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
#else /* ! CONFIG_PPC64 */
void __init early_init_mmu(void)
{
-#ifdef CONFIG_PPC_47x
- early_init_mmu_47x();
-#endif
+ unsigned long root = of_get_flat_dt_root();
+
+ if (IS_ENABLED(CONFIG_PPC_47x) && IS_ENABLED(CONFIG_SMP) &&
+ of_get_flat_dt_prop(root, "cooperative-partition", NULL))
+ mmu_clear_feature(MMU_FTR_USE_TLBIVAX_BCAST);
}
#endif /* CONFIG_PPC64 */
--
2.41.0
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