linux-kernel - [PATCH 5.10 100/104] openrisc: mm/init.c: remove unused memblock_region variable in map

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Date:   Mon, 24 May 2021 17:26:35 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Stafford Horne <shorne@...il.com>
Subject: [PATCH 5.10 100/104] openrisc: mm/init.c: remove unused memblock_region variable in map_ram()

From: Mike Rapoport <rppt@...ux.ibm.com>

commit 4eff124347191d1548eb4e14e20e77513dcbd0fe upstream.

Kernel test robot reports:

cppcheck possible warnings: (new ones prefixed by >>, may not real problems)

>> arch/openrisc/mm/init.c:125:10: warning: Uninitialized variable: region [uninitvar]
            region->base, region->base + region->size);
            ^

Replace usage of memblock_region fields with 'start' and 'end' variables
that are initialized in for_each_mem_range() and remove the declaration of
region.

Fixes: b10d6bca8720 ("arch, drivers: replace for_each_membock() with for_each_mem_range()")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
Signed-off-by: Stafford Horne <shorne@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/openrisc/mm/init.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -76,7 +76,6 @@ static void __init map_ram(void)
 	/* These mark extents of read-only kernel pages...
 	 * ...from vmlinux.lds.S
 	 */
-	struct memblock_region *region;
 
 	v = PAGE_OFFSET;
 
@@ -122,7 +121,7 @@ static void __init map_ram(void)
 		}
 
 		printk(KERN_INFO "%s: Memory: 0x%x-0x%x\n", __func__,
-		       region->base, region->base + region->size);
+		       start, end);
 	}
 }