linux-kernel - [PATCH] mm: change "char *bdi_unknown_name" to "char bdi_unknown

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Message-Id: <20220512144829.5148-1-liqiong@nfschina.com>
Date:   Thu, 12 May 2022 22:48:29 +0800
From:   liqiong <liqiong@...china.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        liqiong <liqiong@...china.com>
Subject: [PATCH] mm: change "char *bdi_unknown_name" to "char bdi_unknown_name[]"

"char bdi_unknown_nam[]" string form declares a single variable.
It is better than "char *bdi_unknown_name" which creates two
variables.

Signed-off-by: liqiong <liqiong@...china.com>
---
 mm/backing-dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 7176af65b103..4982ccc63536 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -20,7 +20,7 @@ struct backing_dev_info noop_backing_dev_info;
 EXPORT_SYMBOL_GPL(noop_backing_dev_info);
 
 static struct class *bdi_class;
-static const char *bdi_unknown_name = "(unknown)";
+static const char bdi_unknown_name[] = "(unknown)";
 
 /*
  * bdi_lock protects bdi_tree and updates to bdi_list. bdi_list has RCU
-- 
2.11.0