linux-kernel - [PATCH 05/10] mm,tlb: turn dummy defines into inline functions

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Message-Id: <20180728215357.3249-6-riel@surriel.com>
Date:   Sat, 28 Jul 2018 17:53:52 -0400
From:   Rik van Riel <riel@...riel.com>
To:     linux-kernel@...r.kernel.org
Cc:     kernel-team@...com, peterz@...radead.org, luto@...nel.org,
        x86@...nel.org, vkuznets@...hat.com, mingo@...nel.org,
        efault@....de, dave.hansen@...el.com, will.daecon@....com,
        catalin.marinas@....com, benh@...nel.crashing.org,
        Rik van Riel <riel@...riel.com>
Subject: [PATCH 05/10] mm,tlb: turn dummy defines into inline functions

Turn the dummy tlb_flush_remove_tables* defines into inline functions,
in order to get compiler type checking, etc.

Suggested-by: Peter Zijlstra <peterz@...radead.org>
Signed-off-by: Rik van Riel <riel@...riel.com>
---
 include/asm-generic/tlb.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index e811ef7b8350..eb57062d9dd3 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -309,8 +309,13 @@ static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb,
  * pointing to about-to-be-freed page table memory.
  */
 #ifndef HAVE_TLB_FLUSH_REMOVE_TABLES
-#define tlb_flush_remove_tables(mm) do {} while (0)
-#define tlb_flush_remove_tables_local(mm) do {} while (0)
+static inline void tlb_flush_remove_tables(struct mm_struct *mm)
+{
+}
+
+static inline void tlb_flush_remove_tables_local(struct mm_struct *mm)
+{
+}
 #endif
 
 #endif /* _ASM_GENERIC__TLB_H */
-- 
2.14.4