linux-kernel - [PATCH] lib/decompressors: remove set but not used variabled 'level'

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Message-ID: <20210514062050.3532344-1-yukuai3@huawei.com>
Date:   Fri, 14 May 2021 14:20:50 +0800
From:   Yu Kuai <yukuai3@...wei.com>
To:     <albin.tonnerre@...e-electrons.com>, <rmk@....linux.org.uk>,
        <hpa@...or.com>, <akpm@...ux-foundation.org>
CC:     <linux-kernel@...r.kernel.org>, <yukuai3@...wei.com>,
        <yi.zhang@...wei.com>
Subject: [PATCH] lib/decompressors: remove set but not used variabled 'level'

Fixes gcc '-Wunused-but-set-variable' warning:

lib/decompress_unlzo.c:46:5: warning: variable ‘level’ set but
not used [-Wunused-but-set-variable]

It is never used and so can be removed.

Fixes: 7dd65feb6c60 ("lib: add support for LZO-compressed kernels")
Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
 lib/decompress_unlzo.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/decompress_unlzo.c b/lib/decompress_unlzo.c
index 1f439a622076..6a21c0d2fc3d 100644
--- a/lib/decompress_unlzo.c
+++ b/lib/decompress_unlzo.c
@@ -43,7 +43,6 @@ STATIC inline long INIT parse_header(u8 *input, long *skip, long in_len)
 	int l;
 	u8 *parse = input;
 	u8 *end = input + in_len;
-	u8 level = 0;
 	u16 version;
 
 	/*
@@ -65,7 +64,7 @@ STATIC inline long INIT parse_header(u8 *input, long *skip, long in_len)
 	version = get_unaligned_be16(parse);
 	parse += 7;
 	if (version >= 0x0940)
-		level = *parse++;
+		*parse++;
 	if (get_unaligned_be32(parse) & HEADER_HAS_FILTER)
 		parse += 8; /* flags + filter info */
 	else
-- 
2.25.4