linux-kernel - [PATCH] ARM: mm: remove unused variables

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Date:   Sun, 12 May 2019 19:41:05 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <linux@...linux.org.uk>, <rppt@...ux.ibm.com>,
        <akpm@...ux-foundation.org>, <geert+renesas@...der.be>,
        <keescook@...omium.org>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] ARM: mm: remove unused variables

Fix gcc warnings:

arch/arm/mm/init.c: In function 'mem_init':
arch/arm/mm/init.c:456:13: warning: unused variable 'itcm_end' [-Wunused-variable]
  extern u32 itcm_end;
             ^
arch/arm/mm/init.c:455:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
  extern u32 dtcm_end;
             ^

They are not used any more since
commit 1c31d4e96b8c ("ARM: 8820/1: mm: Stop printing the virtual memory layout")

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 arch/arm/mm/init.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index be0b429..c71ecbb 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -450,12 +450,6 @@ static void __init free_highpages(void)
  */
 void __init mem_init(void)
 {
-#ifdef CONFIG_HAVE_TCM
-	/* These pointers are filled in on TCM detection */
-	extern u32 dtcm_end;
-	extern u32 itcm_end;
-#endif
-
 	set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
 
 	/* this will put all unused low memory onto the freelists */
-- 
2.7.4