linux-kernel - [PATCH -next] drivers/base/memory: fix a compilation warning

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Message-Id: <1559320186-28337-1-git-send-email-cai@lca.pw>
Date:   Fri, 31 May 2019 12:29:46 -0400
From:   Qian Cai <cai@....pw>
To:     akpm@...ux-foundation.org
Cc:     gregkh@...uxfoundation.org, rafael@...nel.org, david@...hat.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Qian Cai <cai@....pw>
Subject: [PATCH -next] drivers/base/memory: fix a compilation warning

The linux-next commit 8553938ba3bd ("drivers/base/memory: pass a
block_id to init_memory_block()") left an unused variable,

drivers/base/memory.c: In function 'add_memory_block':
drivers/base/memory.c:697:33: warning: variable 'section_nr' set but not
used [-Wunused-but-set-variable]

Also, rework the code logic a bit.

Signed-off-by: Qian Cai <cai@....pw>
---
 drivers/base/memory.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index f28efb0bf5c7..826dd76f662e 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -694,17 +694,13 @@ static int init_memory_block(struct memory_block **memory, int block_id,
 static int add_memory_block(int base_section_nr)
 {
 	struct memory_block *mem;
-	int i, ret, section_count = 0, section_nr;
+	int i, ret, section_count = 0;
 
 	for (i = base_section_nr;
 	     i < base_section_nr + sections_per_block;
-	     i++) {
-		if (!present_section_nr(i))
-			continue;
-		if (section_count == 0)
-			section_nr = i;
-		section_count++;
-	}
+	     i++)
+		if (present_section_nr(i))
+			section_count++;
 
 	if (section_count == 0)
 		return 0;
-- 
1.8.3.1