linux-kernel - [PATCH v3 1/3] powerpc/32s: drop Hash

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Message-Id: <809c41e209068baf1045edbf154cc8d25c520d1e.1556296364.git.christophe.leroy@c-s.fr>
Date:   Fri, 26 Apr 2019 16:36:36 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v3 1/3] powerpc/32s: drop Hash_end

Hash_end has never been used, drop it.

Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
v2: no change
v3: no change

 arch/powerpc/mm/mmu_decl.h   | 2 +-
 arch/powerpc/mm/ppc_mmu_32.c | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index 74ff61dabcb1..f7f1374ba3ee 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -104,7 +104,7 @@ extern int __map_without_bats;
 extern unsigned int rtas_data, rtas_size;
 
 struct hash_pte;
-extern struct hash_pte *Hash, *Hash_end;
+extern struct hash_pte *Hash;
 extern unsigned long Hash_size, Hash_mask;
 
 #endif /* CONFIG_PPC32 */
diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c
index bf1de3ca39bc..061feab884a6 100644
--- a/arch/powerpc/mm/ppc_mmu_32.c
+++ b/arch/powerpc/mm/ppc_mmu_32.c
@@ -36,7 +36,7 @@
 
 #include "mmu_decl.h"
 
-struct hash_pte *Hash, *Hash_end;
+struct hash_pte *Hash;
 unsigned long Hash_size, Hash_mask;
 unsigned long _SDR1;
 
@@ -345,8 +345,6 @@ void __init MMU_init_hw(void)
 		      __func__, Hash_size, Hash_size);
 	_SDR1 = __pa(Hash) | SDR1_LOW_BITS;
 
-	Hash_end = (struct hash_pte *) ((unsigned long)Hash + Hash_size);
-
 	printk("Total memory = %lldMB; using %ldkB for hash table (at %p)\n",
 	       (unsigned long long)(total_memory >> 20), Hash_size >> 10, Hash);
 
-- 
2.13.3