Commit faaadaf3 authored Aug 24, 2018 by Will Deacon

asm-generic/tlb: Guard with #ifdef CONFIG_MMU



The inner workings of the mmu_gather-based TLB invalidation mechanism
are not relevant to nommu configurations, so guard them with an #ifdef.
This allows us to implement future functions using static inlines
without breaking the build.

Acked-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

parent 57361846

include/asm-generic/tlb.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,8 @@
		#include <asm/pgalloc.h>
		#include <asm/tlbflush.h>

		#ifdef CONFIG_MMU

		#ifdef CONFIG_HAVE_RCU_TABLE_FREE
		/*
		* Semi RCU freeing of the page directories.
		@@ -310,6 +312,8 @@ static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb,
		#endif
		#endif

		#endif /* CONFIG_MMU */

		#define tlb_migrate_finish(mm) do {} while (0)

		#endif /* _ASM_GENERIC__TLB_H */

Admin message