linux-kernel - [PATCH 06/18] asm-generic/tlb: Conditionally provide tlb_migrate

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Date:   Wed, 26 Sep 2018 13:36:29 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     will.deacon@....com, aneesh.kumar@...ux.vnet.ibm.com,
        akpm@...ux-foundation.org, npiggin@...il.com
Cc:     linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, peterz@...radead.org,
        linux@...linux.org.uk, heiko.carstens@...ibm.com, riel@...riel.com
Subject: [PATCH 06/18] asm-generic/tlb: Conditionally provide tlb_migrate_finish()

Needed for ia64 -- alternatively we drop the entire hook.

Cc: Will Deacon <will.deacon@....com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Nick Piggin <npiggin@...il.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
 include/asm-generic/tlb.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -539,6 +539,8 @@ static inline void tlb_end_vma(struct mm
 
 #endif /* CONFIG_MMU */
 
+#ifndef tlb_migrate_finish
 #define tlb_migrate_finish(mm) do {} while (0)
+#endif
 
 #endif /* _ASM_GENERIC__TLB_H */