linux-ext4 - [PATCH 03/11] unicode: remove the charset field from struct unicode

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Message-Id: <20210818140651.17181-4-hch@lst.de>
Date:   Wed, 18 Aug 2021 16:06:43 +0200
From:   Christoph Hellwig <hch@....de>
To:     Gabriel Krisman Bertazi <krisman@...labora.com>
Cc:     Shreeya Patel <shreeya.patel@...labora.com>,
        linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: [PATCH 03/11] unicode: remove the charset field from struct unicode_map

It is hardcoded and only used for a f2fs sysfs file where it can be
hardcoded just as easily.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/f2fs/sysfs.c         | 3 +--
 fs/unicode/utf8-core.c  | 3 ---
 include/linux/unicode.h | 1 -
 3 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 6642246206bd..d9ecf75e445d 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -195,8 +195,7 @@ static ssize_t encoding_show(struct f2fs_attr *a,
 	struct super_block *sb = sbi->sb;
 
 	if (f2fs_sb_has_casefold(sbi))
-		return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
-			sb->s_encoding->charset,
+		return snprintf(buf, PAGE_SIZE, "UTF-8 (%d.%d.%d)\n",
 			(sb->s_encoding->version >> 16) & 0xff,
 			(sb->s_encoding->version >> 8) & 0xff,
 			sb->s_encoding->version & 0xff);
diff --git a/fs/unicode/utf8-core.c b/fs/unicode/utf8-core.c
index dc25823bfed9..86f42a078d99 100644
--- a/fs/unicode/utf8-core.c
+++ b/fs/unicode/utf8-core.c
@@ -219,10 +219,7 @@ struct unicode_map *utf8_load(const char *version)
 	um = kzalloc(sizeof(struct unicode_map), GFP_KERNEL);
 	if (!um)
 		return ERR_PTR(-ENOMEM);
-
-	um->charset = "UTF-8";
 	um->version = unicode_version;
-
 	return um;
 }
 EXPORT_SYMBOL(utf8_load);
diff --git a/include/linux/unicode.h b/include/linux/unicode.h
index 74484d44c755..6a392cd9f076 100644
--- a/include/linux/unicode.h
+++ b/include/linux/unicode.h
@@ -6,7 +6,6 @@
 #include <linux/dcache.h>
 
 struct unicode_map {
-	const char *charset;
 	int version;
 };
 
-- 
2.30.2