linux-kernel - [PATCH] mm/huge_memory.c: Remove unused variable unmap

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Date:   Wed, 19 May 2021 01:39:27 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Souptick Joarder <jrdr.linux@...il.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH] mm/huge_memory.c: Remove unused variable unmap_success

Kernel test robot throws below warning ->

   mm/huge_memory.c: In function 'unmap_page':
>> mm/huge_memory.c:2345:7: warning: variable 'unmap_success' set but not used [-Wunused-but-set-variable]
    2345 |  bool unmap_success;
         |       ^~~~~~~~~~~~~

Remove the unused variable unmap_success.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
 mm/huge_memory.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 52ca04b905cf..ff79a12993c9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2342,14 +2342,13 @@ static void unmap_page(struct page *page)
 {
 	enum ttu_flags ttu_flags = TTU_IGNORE_MLOCK |
 		TTU_RMAP_LOCKED | TTU_SPLIT_HUGE_PMD;
-	bool unmap_success;
 
 	VM_BUG_ON_PAGE(!PageHead(page), page);
 
 	if (PageAnon(page))
 		ttu_flags |= TTU_SPLIT_FREEZE;
 
-	unmap_success = try_to_unmap(page, ttu_flags);
+	try_to_unmap(page, ttu_flags);
 }
 
 static void remap_page(struct page *page, unsigned int nr)
-- 
2.25.1