From: kernel test robot <lkp@intel.com>
To: Eric Biggers <ebiggers@kernel.org>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [ebiggers:wip-aes 6/10] fs/smb/client/cifs_unicode.c:195:13: error: call to undeclared function 'get_unaligned_le16'; ISO C99 and later do not support implicit function declarations
Date: Sun, 15 Feb 2026 14:18:39 +0100 [thread overview]
Message-ID: <202602151406.eZcaINgz-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git wip-aes
head: 1ec222c94bbd407081e99e0efbbfbc5e9c258ee7
commit: c3c35f7367a6e4195dbd41f3287c4fed5e52e472 [6/10] smb: client: Use AES-CMAC library for SMB3 signature calculation
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260215/202602151406.eZcaINgz-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260215/202602151406.eZcaINgz-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602151406.eZcaINgz-lkp@intel.com/
All errors (new ones prefixed by >>):
>> fs/smb/client/cifs_unicode.c:195:13: error: call to undeclared function 'get_unaligned_le16'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
195 | ftmp[0] = get_unaligned_le16(&from[i]);
| ^
>> fs/smb/client/cifs_unicode.c:284:3: error: call to undeclared function 'put_unaligned_le16'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
284 | put_unaligned_le16(wchar_to, &to[i]);
| ^
fs/smb/client/cifs_unicode.c:288:2: error: call to undeclared function 'put_unaligned_le16'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
288 | put_unaligned_le16(0, &to[i]);
| ^
fs/smb/client/cifs_unicode.c:313:13: error: call to undeclared function 'get_unaligned_le16'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
313 | ftmp[0] = get_unaligned_le16(&from[i]);
| ^
>> fs/smb/client/cifs_unicode.c:543:5: error: call to undeclared function 'put_unaligned'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
543 | put_unaligned(dst_char, &target[j]);
| ^
fs/smb/client/cifs_unicode.c:575:3: error: call to undeclared function 'put_unaligned'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
575 | put_unaligned(dst_char, &target[j]);
| ^
fs/smb/client/cifs_unicode.c:579:2: error: call to undeclared function 'put_unaligned'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
579 | put_unaligned(0, &target[j]); /* Null terminate target unicode string */
| ^
7 errors generated.
vim +/get_unaligned_le16 +195 fs/smb/client/cifs_unicode.c
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 152
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 153 /*
acbbb76a26648d fs/cifs/cifs_unicode.c Steve French 2012-01-18 154 * cifs_from_utf16 - convert utf16le string to local charset
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 155 * @to - destination buffer
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 156 * @from - source buffer
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 157 * @tolen - destination buffer size (in bytes)
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 158 * @fromlen - source buffer size (in bytes)
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 159 * @codepage - codepage to which characters should be converted
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 160 * @mapchar - should characters be remapped according to the mapchars option?
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 161 *
acbbb76a26648d fs/cifs/cifs_unicode.c Steve French 2012-01-18 162 * Convert a little-endian utf16le string (as sent by the server) to a string
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 163 * in the provided codepage. The tolen and fromlen parameters are to ensure
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 164 * that the code doesn't walk off of the end of the buffer (which is always
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 165 * a danger if the alignment of the source buffer is off). The destination
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 166 * string is always properly null terminated and fits in the destination
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 167 * buffer. Returns the length of the destination string in bytes (including
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 168 * null terminator).
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 169 *
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 170 * Note that some windows versions actually send multiword UTF-16 characters
acbbb76a26648d fs/cifs/cifs_unicode.c Steve French 2012-01-18 171 * instead of straight UTF16-2. The linux nls routines however aren't able to
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 172 * deal with those characters properly. In the event that we get some of
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 173 * those characters, they won't be translated properly.
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 174 */
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 175 int
acbbb76a26648d fs/cifs/cifs_unicode.c Steve French 2012-01-18 176 cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
b693855fe67314 fs/cifs/cifs_unicode.c Steve French 2014-09-25 177 const struct nls_table *codepage, int map_type)
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 178 {
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 179 int i, charlen, safelen;
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 180 int outlen = 0;
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 181 int nullsize = nls_nullsize(codepage);
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 182 int fromwords = fromlen / 2;
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 183 char tmp[NLS_MAX_CHARSET_SIZE];
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 184 __u16 ftmp[3]; /* ftmp[3] = 3array x 2bytes = 6bytes UTF-16 */
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 185
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 186 /*
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 187 * because the chars can be of varying widths, we need to take care
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 188 * not to overflow the destination buffer when we get close to the
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 189 * end of it. Until we get to this offset, we don't need to check
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 190 * for overflow however.
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 191 */
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 192 safelen = tolen - (NLS_MAX_CHARSET_SIZE + nullsize);
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 193
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 194 for (i = 0; i < fromwords; i++) {
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 @195 ftmp[0] = get_unaligned_le16(&from[i]);
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 196 if (ftmp[0] == 0)
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 197 break;
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 198 if (i + 1 < fromwords)
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 199 ftmp[1] = get_unaligned_le16(&from[i + 1]);
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 200 else
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 201 ftmp[1] = 0;
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 202 if (i + 2 < fromwords)
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 203 ftmp[2] = get_unaligned_le16(&from[i + 2]);
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 204 else
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 205 ftmp[2] = 0;
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 206
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 207 /*
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 208 * check to see if converting this character might make the
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 209 * conversion bleed into the null terminator
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 210 */
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 211 if (outlen >= safelen) {
b693855fe67314 fs/cifs/cifs_unicode.c Steve French 2014-09-25 212 charlen = cifs_mapchar(tmp, ftmp, codepage, map_type);
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 213 if ((outlen + charlen) > (tolen - nullsize))
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 214 break;
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 215 }
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 216
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 217 /* put converted char into 'to' buffer */
b693855fe67314 fs/cifs/cifs_unicode.c Steve French 2014-09-25 218 charlen = cifs_mapchar(&to[outlen], ftmp, codepage, map_type);
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 219 outlen += charlen;
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 220
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 221 /* charlen (=bytes of UTF-8 for 1 character)
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 222 * 4bytes UTF-8(surrogate pair) is charlen=4
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 223 * (4bytes UTF-16 code)
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 224 * 7-8bytes UTF-8(IVS) is charlen=3+4 or 4+4
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 225 * (2 UTF-8 pairs divided to 2 UTF-16 pairs) */
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 226 if (charlen == 4)
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 227 i++;
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 228 else if (charlen >= 5)
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 229 /* 5-6bytes UTF-8 */
b29103076bec83 fs/cifs/cifs_unicode.c Nakajima Akira 2015-04-09 230 i += 2;
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 231 }
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 232
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 233 /* properly null-terminate string */
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 234 for (i = 0; i < nullsize; i++)
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 235 to[outlen++] = 0;
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 236
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 237 return outlen;
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 238 }
7fabf0c9479fef fs/cifs/cifs_unicode.c Jeff Layton 2009-04-30 239
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 240 /*
acbbb76a26648d fs/cifs/cifs_unicode.c Steve French 2012-01-18 241 * NAME: cifs_strtoUTF16()
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 242 *
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 243 * FUNCTION: Convert character string to unicode string
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 244 *
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 245 */
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 246 int
acbbb76a26648d fs/cifs/cifs_unicode.c Steve French 2012-01-18 247 cifs_strtoUTF16(__le16 *to, const char *from, int len,
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 248 const struct nls_table *codepage)
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 249 {
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 250 int charlen;
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 251 int i;
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 252 wchar_t wchar_to; /* needed to quiet sparse */
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 253
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 254 /* special case for utf8 to handle no plane0 chars */
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 255 if (!strcmp(codepage->charset, "utf8")) {
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 256 /*
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 257 * convert utf8 -> utf16, we assume we have enough space
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 258 * as caller should have assumed conversion does not overflow
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 259 * in destination len is length in wchar_t units (16bits)
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 260 */
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 261 i = utf8s_to_utf16s(from, len, UTF16_LITTLE_ENDIAN,
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 262 (wchar_t *) to, len);
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 263
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 264 /* if success terminate and exit */
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 265 if (i >= 0)
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 266 goto success;
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 267 /*
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 268 * if fails fall back to UCS encoding as this
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 269 * function should not return negative values
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 270 * currently can fail only if source contains
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 271 * invalid encoded characters
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 272 */
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 273 }
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 274
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 275 for (i = 0; len && *from; i++, from += charlen, len -= charlen) {
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 276 charlen = codepage->char2uni(from, len, &wchar_to);
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 277 if (charlen < 1) {
f96637be081141 fs/cifs/cifs_unicode.c Joe Perches 2013-05-04 278 cifs_dbg(VFS, "strtoUTF16: char2uni of 0x%x returned %d\n",
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 279 *from, charlen);
69114089b75e03 fs/cifs/cifs_unicode.c Steve French 2005-11-10 280 /* A question mark */
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 281 wchar_to = 0x003f;
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 282 charlen = 1;
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 283 }
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 @284 put_unaligned_le16(wchar_to, &to[i]);
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 285 }
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 286
fd3ba42c76d3d4 fs/cifs/cifs_unicode.c Frediano Ziglio 2012-08-07 287 success:
ba2dbf30df210b fs/cifs/cifs_unicode.c Jeff Layton 2011-01-20 288 put_unaligned_le16(0, &to[i]);
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 289 return i;
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 290 }
^1da177e4c3f41 fs/cifs/cifs_unicode.c Linus Torvalds 2005-04-16 291
:::::: The code at line 195 was first introduced by commit
:::::: b29103076bec8316e155e71309dc0fba499022c6 Fix to convert SURROGATE PAIR
:::::: TO: Nakajima Akira <nakajima.akira@nttcom.co.jp>
:::::: CC: Steve French <smfrench@gmail.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-02-15 13:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-15 13:18 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-02-15 10:52 [ebiggers:wip-aes 6/10] fs/smb/client/cifs_unicode.c:195:13: error: call to undeclared function 'get_unaligned_le16'; ISO C99 and later do not support implicit function declarations kernel test robot
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