staging: exfat: fix multiple definition error of `rename_file'

`rename_file' was exported but not properly namespaced causing a
multiple definition error because `rename_file' is already defined in
fs/hostfs/hostfs_user.c:

ld: drivers/staging/exfat/exfat_core.o: in function `rename_file':
drivers/staging/exfat/exfat_core.c:2327: multiple definition of
`rename_file'; fs/hostfs/hostfs_user.o:fs/hostfs/hostfs_user.c:350:
first defined here
make: *** [Makefile:1077: vmlinux] Error 1

This error can be reproduced on ARCH=um by selecting:

CONFIG_EXFAT_FS=y
CONFIG_HOSTFS=y

Add a namespace prefix exfat_* to fix this error.

Reported-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Cc: stable <stable@vger.kernel.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Tested-by: David Gow <davidgow@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Link: https://lore.kernel.org/r/20191204234522.42855-1-brendanhiggins@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h
index 2aac1e0..51c665a 100644 (file)
--- a/drivers/staging/exfat/exfat.h
+++ b/drivers/staging/exfat/exfat.h
@@ -805,8 +805,8 @@ s32 create_dir(struct inode *inode, struct chain_t *p_dir,
 s32 create_file(struct inode *inode, struct chain_t *p_dir,
                struct uni_name_t *p_uniname, u8 mode, struct file_id_t *fid);
 void remove_file(struct inode *inode, struct chain_t *p_dir, s32 entry);
-s32 rename_file(struct inode *inode, struct chain_t *p_dir, s32 old_entry,
-               struct uni_name_t *p_uniname, struct file_id_t *fid);
+s32 exfat_rename_file(struct inode *inode, struct chain_t *p_dir, s32 old_entry,
+                     struct uni_name_t *p_uniname, struct file_id_t *fid);
 s32 move_file(struct inode *inode, struct chain_t *p_olddir, s32 oldentry,
              struct chain_t *p_newdir, struct uni_name_t *p_uniname,
              struct file_id_t *fid);

diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
index 463eb89..794000e 100644 (file)
--- a/drivers/staging/exfat/exfat_core.c
+++ b/drivers/staging/exfat/exfat_core.c
@@ -2324,8 +2324,8 @@ void remove_file(struct inode *inode, struct chain_t *p_dir, s32 entry)
        fs_func->delete_dir_entry(sb, p_dir, entry, 0, num_entries);
 }
 
-s32 rename_file(struct inode *inode, struct chain_t *p_dir, s32 oldentry,
-               struct uni_name_t *p_uniname, struct file_id_t *fid)
+s32 exfat_rename_file(struct inode *inode, struct chain_t *p_dir, s32 oldentry,
+                     struct uni_name_t *p_uniname, struct file_id_t *fid)
 {
        s32 ret, newentry = -1, num_old_entries, num_new_entries;
        sector_t sector_old, sector_new;

diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index 6e48190..9f91853 100644 (file)
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -1262,8 +1262,8 @@ static int ffsMoveFile(struct inode *old_parent_inode, struct file_id_t *fid,
        fs_set_vol_flags(sb, VOL_DIRTY);
 
        if (olddir.dir == newdir.dir)
-               ret = rename_file(new_parent_inode, &olddir, dentry, &uni_name,
-                                 fid);
+               ret = exfat_rename_file(new_parent_inode, &olddir, dentry,
+                                       &uni_name, fid);
        else
                ret = move_file(new_parent_inode, &olddir, dentry, &newdir,
                                &uni_name, fid);