linux-kernel - [PATCH v3 5/6] tlb: arch: Remove empty __tlb_remove_tlb

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Date:   Wed, 27 Jan 2021 23:53:46 +0000
From:   Will Deacon <will@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     kernel-team@...roid.com, linux-mm@...ck.org,
        Will Deacon <will@...nel.org>, Yu Zhao <yuzhao@...gle.com>,
        Minchan Kim <minchan@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Mohamed Alzayat <alzayat@...-sws.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Nadav Amit <namit@...are.com>,
        Andrea Arcangeli <aarcange@...hat.com>
Subject: [PATCH v3 5/6] tlb: arch: Remove empty __tlb_remove_tlb_entry() stubs

If __tlb_remove_tlb_entry() is not defined by the architecture then
we provide an empty definition in asm-generic/tlb.h.

Remove the redundant empty definitions for sparc64 and x86.

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Yu Zhao <yuzhao@...gle.com>
Suggested-by: Peter Zijlstra <peterz@...radead.org>
Signed-off-by: Will Deacon <will@...nel.org>
---
 arch/sparc/include/asm/tlb_64.h | 1 -
 arch/x86/include/asm/tlb.h      | 1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
index e841cae544c2..779a5a0f0608 100644
--- a/arch/sparc/include/asm/tlb_64.h
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -24,7 +24,6 @@ void flush_tlb_pending(void);
 
 #define tlb_start_vma(tlb, vma) do { } while (0)
 #define tlb_end_vma(tlb, vma)	do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
 #define tlb_flush(tlb)	flush_tlb_pending()
 
 /*
diff --git a/arch/x86/include/asm/tlb.h b/arch/x86/include/asm/tlb.h
index 820082bd6880..1bfe979bb9bc 100644
--- a/arch/x86/include/asm/tlb.h
+++ b/arch/x86/include/asm/tlb.h
@@ -4,7 +4,6 @@
 
 #define tlb_start_vma(tlb, vma) do { } while (0)
 #define tlb_end_vma(tlb, vma) do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
 
 #define tlb_flush tlb_flush
 static inline void tlb_flush(struct mmu_gather *tlb);
-- 
2.30.0.365.g02bc693789-goog