Hi all,
<snip>
> diff --git a/fs/f2fs/hash.c b/fs/f2fs/hash.c
> index cc82f142f811f..99e79934f5088 100644
> --- a/fs/f2fs/hash.c
> +++ b/fs/f2fs/hash.c
> @@ -14,6 +14,7 @@
> #include <linux/f2fs_fs.h>
> #include <linux/cryptohash.h>
> #include <linux/pagemap.h>
> +#include <linux/unicode.h>
>
> #include "f2fs.h"
>
> @@ -67,7 +68,7 @@ static void str2hashbuf(const unsigned char *msg, size_t len,
> *buf++ = pad;
> }
>
> -f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
> +static f2fs_hash_t __f2fs_dentry_hash(const struct qstr *name_info,
> struct fscrypt_name *fname)
> {
> __u32 hash;
> @@ -103,3 +104,35 @@ f2fs_hash_t f2fs_dentry_hash(const struct qstr *name_info,
> f2fs_hash = cpu_to_le32(hash & ~F2FS_HASH_COL_BIT);
> return f2fs_hash;
> }
> +
> +f2fs_hash_t f2fs_dentry_hash(const struct inode *dir,
> + const struct qstr *name_info, struct fscrypt_name *fname)
> +{
> +#ifdef CONFIG_UNICODE
> + struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
> + const struct unicode_map *um = sbi->s_encoding;
> + int r, dlen;
> + unsigned char *buff;
> + struct qstr *folded;
> +
> + if (name_info->len && IS_CASEFOLDED(dir)) {
> + buff = f2fs_kzalloc(sbi, sizeof(char) * PATH_MAX, GFP_KERNEL);
> + if (!buff)
> + return -ENOMEM;
> +
> + dlen = utf8_casefold(um, name_info, buff, PATH_MAX);
> + if (dlen < 0) {
> + kvfree(buff);
> + goto opaque_seq;
> + }
> + folded->name = buff;
> + folded->len = dlen;
> + r = __f2fs_dentry_hash(folded, fname);
> +
> + kvfree(buff);
> + return r;
> + }
> +opaque_seq:
> +#endif
> + return __f2fs_dentry_hash(name_info, fname);
> +}
Clang now warns:
fs/f2fs/hash.c:128:3: warning: variable 'folded' is uninitialized when used here [-Wuninitialized]
folded->name = buff;
^~~~~~
fs/f2fs/hash.c:116:21: note: initialize the variable 'folded' to silence this warning
struct qstr *folded;
^
= NULL
1 warning generated.
I assume that it wants to be initialized with f2fs_kzalloc as well but
I am not familiar with this code and what it expects to do.
Please look into this when you get a chance!
Nathan
