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cifs: Remove unicode parameter from parse_reparse_point() function

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This parameter is always true, so remove it and also remove dead code which
is never called (for all false code paths).

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Pali Rohár
2024-10-06 19:44:50 +02:00
committed by Steve French
parent 8b19dfb34d
commit 24cf72976a
5 changed files with 14 additions and 18 deletions
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25
fs/smb/client/reparse.c
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@@ -536,7 +536,7 @@ static int parse_reparse_posix(struct reparse_posix_data *buf,
}
int smb2_parse_native_symlink(char **target, const char *buf, unsigned int len,
bool unicode, bool relative,
bool relative,
const char *full_path,
struct cifs_sb_info *cifs_sb)
{
@@ -547,26 +547,24 @@ int smb2_parse_native_symlink(char **target, const char *buf, unsigned int len,
int rc;
int i;
/* Check that length it valid for unicode/non-unicode mode */
if (!len || (unicode && (len % 2))) {
/* Check that length it valid */
if (!len || (len % 2)) {
cifs_dbg(VFS, "srv returned malformed symlink buffer\n");
rc = -EIO;
goto out;
}
/*
* Check that buffer does not contain UTF-16 null codepoint in unicode
* mode or null byte in non-unicode mode because Linux cannot process
* symlink with null byte.
* Check that buffer does not contain UTF-16 null codepoint
* because Linux cannot process symlink with null byte.
*/
if ((unicode && UniStrnlen((wchar_t *)buf, len/2) != len/2) ||
(!unicode && strnlen(buf, len) != len)) {
if (UniStrnlen((wchar_t *)buf, len/2) != len/2) {
cifs_dbg(VFS, "srv returned null byte in native symlink target location\n");
rc = -EIO;
goto out;
}
smb_target = cifs_strndup_from_utf16(buf, len, unicode, cifs_sb->local_nls);
smb_target = cifs_strndup_from_utf16(buf, len, true, cifs_sb->local_nls);
if (!smb_target) {
rc = -ENOMEM;
goto out;
@@ -621,7 +619,7 @@ out:
}
static int parse_reparse_symlink(struct reparse_symlink_data_buffer *sym,
u32 plen, bool unicode,
u32 plen,
struct cifs_sb_info *cifs_sb,
const char *full_path,
struct cifs_open_info_data *data)
@@ -641,7 +639,6 @@ static int parse_reparse_symlink(struct reparse_symlink_data_buffer *sym,
return smb2_parse_native_symlink(&data->symlink_target,
sym->PathBuffer + offs,
len,
unicode,
le32_to_cpu(sym->Flags) & SYMLINK_FLAG_RELATIVE,
full_path,
cifs_sb);
@@ -696,7 +693,7 @@ static int parse_reparse_wsl_symlink(struct reparse_wsl_symlink_data_buffer *buf
int parse_reparse_point(struct reparse_data_buffer *buf,
u32 plen, struct cifs_sb_info *cifs_sb,
const char *full_path,
bool unicode, struct cifs_open_info_data *data)
struct cifs_open_info_data *data)
{
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
@@ -710,7 +707,7 @@ int parse_reparse_point(struct reparse_data_buffer *buf,
case IO_REPARSE_TAG_SYMLINK:
return parse_reparse_symlink(
(struct reparse_symlink_data_buffer *)buf,
plen, unicode, cifs_sb, full_path, data);
plen, cifs_sb, full_path, data);
case IO_REPARSE_TAG_LX_SYMLINK:
return parse_reparse_wsl_symlink(
(struct reparse_wsl_symlink_data_buffer *)buf,
@@ -744,7 +741,7 @@ int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb,
buf = (struct reparse_data_buffer *)((u8 *)io +
le32_to_cpu(io->OutputOffset));
return parse_reparse_point(buf, plen, cifs_sb, full_path, true, data);
return parse_reparse_point(buf, plen, cifs_sb, full_path, data);
}
static bool wsl_to_fattr(struct cifs_open_info_data *data,