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fs/nls: make load_nls() take a const parameter

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[ Upstream commit c1ed39ec116272935528ca9b348b8ee79b0791da ]

load_nls() take a char * parameter, use it to find nls module in list or
construct the module name to load it.

This change make load_nls() take a const parameter, so we don't need do
some cast like this:

        ses->local_nls = load_nls((char *)ctx->local_nls->charset);

Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Winston Wen <wentao@uniontech.com>
Reviewed-by: Paulo Alcantara <pc@manguebit.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Winston Wen 2023-07-24 10:10:56 +08:00 committed by Greg Kroah-Hartman
parent d28f76be79
commit 952af5cfd5
2 changed files with 3 additions and 3 deletions
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4
fs/nls/nls_base.c
View File

@ -272,7 +272,7 @@ int unregister_nls(struct nls_table * nls)
return -EINVAL; return -EINVAL;
} }
static struct nls_table *find_nls(char *charset) static struct nls_table *find_nls(const char *charset)
{ {
struct nls_table *nls; struct nls_table *nls;
spin_lock(&nls_lock); spin_lock(&nls_lock);
@ -288,7 +288,7 @@ static struct nls_table *find_nls(char *charset)
return nls; return nls;
} }
struct nls_table *load_nls(char *charset) struct nls_table *load_nls(const char *charset)
{ {
return try_then_request_module(find_nls(charset), "nls_%s", charset); return try_then_request_module(find_nls(charset), "nls_%s", charset);
} }

2
include/linux/nls.h
View File

@ -47,7 +47,7 @@ enum utf16_endian {
/* nls_base.c */ /* nls_base.c */
extern int __register_nls(struct nls_table *, struct module *); extern int __register_nls(struct nls_table *, struct module *);
extern int unregister_nls(struct nls_table *); extern int unregister_nls(struct nls_table *);
extern struct nls_table *load_nls(char *); extern struct nls_table *load_nls(const char *charset);
extern void unload_nls(struct nls_table *); extern void unload_nls(struct nls_table *);
extern struct nls_table *load_nls_default(void); extern struct nls_table *load_nls_default(void);
#define register_nls(nls) __register_nls((nls), THIS_MODULE) #define register_nls(nls) __register_nls((nls), THIS_MODULE)