powerpc/mm: define an empty mm_iommu_init()
To avoid ifdefs, define a empty static inline mm_iommu_init() function when CONFIG_SPAPR_TCE_IOMMU is not selected. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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@ -52,6 +52,7 @@ static inline bool mm_iommu_is_devmem(struct mm_struct *mm, unsigned long hpa,
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{
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{
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return false;
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return false;
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}
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}
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static inline void mm_iommu_init(struct mm_struct *mm) { }
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#endif
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#endif
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extern void switch_slb(struct task_struct *tsk, struct mm_struct *mm);
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extern void switch_slb(struct task_struct *tsk, struct mm_struct *mm);
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extern void set_context(unsigned long id, pgd_t *pgd);
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extern void set_context(unsigned long id, pgd_t *pgd);
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@ -931,9 +931,7 @@ void __init setup_arch(char **cmdline_p)
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init_mm.end_data = (unsigned long) _edata;
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init_mm.end_data = (unsigned long) _edata;
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init_mm.brk = klimit;
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init_mm.brk = klimit;
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#ifdef CONFIG_SPAPR_TCE_IOMMU
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mm_iommu_init(&init_mm);
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mm_iommu_init(&init_mm);
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#endif
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irqstack_early_init();
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irqstack_early_init();
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exc_lvl_early_init();
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exc_lvl_early_init();
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emergency_stack_init();
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emergency_stack_init();
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