linux-kernel - [PATCH] mm: vmalloc: remove redundant asignmnet in unmap_kernel_range

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Date:   Tue,  7 Jul 2020 19:32:26 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Joerg Roedel <jroedel@...e.de>, Mike Rapoport <rppt@...nel.org>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Mike Rapoport <rppt@...ux.ibm.com>
Subject: [PATCH] mm: vmalloc: remove redundant asignmnet in unmap_kernel_range_noflush()

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

'addr' is set to 'start' and then a few lines afterwards 'start' is
set to 'addr'.
Remove the second asignment.

Fixes: 2ba3e6947aed ("mm/vmalloc: track which page-table levels were modified")
Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
---
 mm/vmalloc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 5a2b55c8dd9a..68ebbafc9c9b 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -171,11 +171,10 @@ void unmap_kernel_range_noflush(unsigned long start, unsigned long size)
 	pgd_t *pgd;
 	unsigned long addr = start;
 	pgtbl_mod_mask mask = 0;
 
 	BUG_ON(addr >= end);
-	start = addr;
 	pgd = pgd_offset_k(addr);
 	do {
 		next = pgd_addr_end(addr, end);
 		if (pgd_bad(*pgd))
 			mask |= PGTBL_PGD_MODIFIED;
-- 
2.25.4