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linux-stable/crypto
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Linus Torvalds 778e0dad72 gcc-10: avoid shadowing standard library 'free()' in crypto 
commit 1a263ae60b upstream.

gcc-10 has started warning about conflicting types for a few new
built-in functions, particularly 'free()'.

This results in warnings like:

   crypto/xts.c:325:13: warning: conflicting types for built-in function ‘free’; expected ‘void(void *)’ [-Wbuiltin-declaration-mismatch]

because the crypto layer had its local freeing functions called
'free()'.

Gcc-10 is in the wrong here, since that function is marked 'static', and
thus there is no chance of confusion with any standard library function
namespace.

But the simplest thing to do is to just use a different name here, and
avoid this gcc mis-feature.

[ Side note: gcc knowing about 'free()' is in itself not the
  mis-feature: the semantics of 'free()' are special enough that a
  compiler can validly do special things when seeing it.

  So the mis-feature here is that gcc thinks that 'free()' is some
  restricted name, and you can't shadow it as a local static function.

  Making the special 'free()' semantics be a function attribute rather
  than tied to the name would be the much better model ]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-20 08:17:11 +02:00
..
asymmetric_keys crypto: asymmetric_keys - select CRYPTO_HASH where needed 2019-07-31 07:28:31 +02:00
async_tx License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
.gitignore
842.c crypto: acomp - add support for 842 via scomp 2016-10-25 11:08:33 +08:00
ablk_helper.c crypto: ablk_helper - Fix cryptd reordering 2016-06-23 18:29:53 +08:00
ablkcipher.c crypto: skcipher - Fix -Wstringop-truncation warnings 2018-10-03 17:00:45 -07:00
acompress.c crypto: acomp - allow registration of multiple acomps 2017-04-21 20:30:50 +08:00
aead.c crypto: Replaced gcc specific attributes with macros from compiler.h 2017-01-13 00:24:39 +08:00
aes_generic.c crypto: aes-generic - drop alignment requirement 2017-02-11 17:50:43 +08:00
aes_ti.c crypto: aes_ti - disable interrupts while accessing S-box 2019-02-12 19:45:57 +01:00
af_alg.c crypto: af_alg - Use bh_lock_sock in sk_destruct 2020-02-05 14:18:10 +00:00
ahash.c crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 14:35:18 +01:00
akcipher.c crypto: Replaced gcc specific attributes with macros from compiler.h 2017-01-13 00:24:39 +08:00
algapi.c crypto: api - Fix race condition in crypto_spawn_alg 2020-02-14 16:32:14 -05:00
algboss.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
algif_aead.c crypto: af_alg - Fix race around ctx->rcvused by making it atomic_t 2018-03-03 10:24:29 +01:00
algif_hash.c crypto: hash - prevent using keyed hashes without setting key 2018-02-16 20:23:00 +01:00
algif_rng.c
algif_skcipher.c crypto: af_alg - Fix race around ctx->rcvused by making it atomic_t 2018-03-03 10:24:29 +01:00
ansi_cprng.c
anubis.c
api.c crypto: api - Fix race condition in crypto_spawn_alg 2020-02-14 16:32:14 -05:00
arc4.c
authenc.c crypto: authenc - fix parsing key with misaligned rta_len 2019-01-23 08:09:48 +01:00
authencesn.c crypto: authencesn - Avoid twice completion call in decrypt path 2019-01-23 08:09:47 +01:00
blkcipher.c crypto: skcipher - Fix -Wstringop-truncation warnings 2018-10-03 17:00:45 -07:00
blowfish_common.c
blowfish_generic.c
camellia_generic.c
cast5_generic.c
cast6_generic.c
cast_common.c
cbc.c crypto: cbc - Propagate NEED_FALLBACK bit 2017-03-09 18:34:39 +08:00
ccm.c crypto: ccm - fix incompatibility between "ccm" and "ccm_base" 2019-05-21 18:50:20 +02:00
chacha20_generic.c crypto: chacha20 - fix handling of chunked input 2017-08-22 14:45:47 +08:00
chacha20poly1305.c crypto: chacha20poly1305 - fix atomic sleep when using async algorithm 2019-07-31 07:28:35 +02:00
cipher.c crypto: api - Remove no-op exit_ops code 2016-10-21 11:03:42 +08:00
cmac.c crypto: algapi - make crypto_xor() and crypto_inc() alignment agnostic 2017-02-11 17:52:28 +08:00
compress.c crypto: api - Remove no-op exit_ops code 2016-10-21 11:03:42 +08:00
crc32_generic.c crypto: hash - annotate algorithms taking optional key 2018-02-16 20:23:00 +01:00
crc32c_generic.c crypto: hash - annotate algorithms taking optional key 2018-02-16 20:23:00 +01:00
crct10dif_common.c
crct10dif_generic.c crypto: crct10dif-generic - fix use via crypto_shash_digest() 2019-05-21 18:50:15 +02:00
cryptd.c crypto: cryptd - Fix skcipher instance memory leak 2019-07-10 09:54:38 +02:00
crypto_engine.c crypto: engine - replace pr_xxx by dev_xxx 2017-06-19 14:19:54 +08:00
crypto_null.c crypto: null - Remove default null blkcipher 2016-07-18 17:35:44 +08:00
crypto_user.c crypto: user - fix memory leak in crypto_report 2019-12-17 20:38:55 +01:00
crypto_wq.c
ctr.c crypto: algapi - make crypto_xor() take separate dst and src arguments 2017-08-04 09:27:15 +08:00
cts.c crypto: algapi - make crypto_xor() and crypto_inc() alignment agnostic 2017-02-11 17:52:28 +08:00
deflate.c crypto: scomp - add support for deflate rfc1950 (zlib) 2017-04-24 18:11:08 +08:00
des_generic.c
dh.c crypto: dh - Fix double free of ctx->p 2017-11-21 09:49:20 +01:00
dh_helper.c crypto: dh - Don't permit 'key' or 'g' size longer than 'p' 2017-11-21 09:49:21 +01:00
drbg.c crypto: drbg - set freed buffers to NULL 2018-05-01 12:58:23 -07:00
ecb.c
ecc.c crypto: ecdh - fix big endian bug in ECC library 2019-12-17 20:38:55 +01:00
ecc.h crypto: ecdh - add privkey generation support 2017-06-10 12:04:35 +08:00
ecc_curve_defs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ecdh.c crypto: ecdh - fix concurrency on shared secret and pubkey 2017-08-03 13:47:22 +08:00
ecdh_helper.c crypto: kpp, (ec)dh - fix typos 2017-06-10 12:04:25 +08:00
echainiv.c crypto: echainiv - Replace chaining with multiplication 2016-09-13 18:44:57 +08:00
fcrypt.c
fips.c
gcm.c crypto: gcm - fix incompatibility between "gcm" and "gcm_base" 2019-05-21 18:50:15 +02:00
gf128mul.c crypto: gf128mul - define gf128mul_x_* in gf128mul.h 2017-04-05 21:58:35 +08:00
ghash-generic.c crypto: ghash - fix unaligned memory access in ghash_setkey() 2019-07-31 07:28:35 +02:00
hash_info.c
hmac.c crypto: hmac - require that the underlying hash algorithm is unkeyed 2017-12-20 10:10:17 +01:00
internal.h crypto: api - Fix race condition in crypto_spawn_alg 2020-02-14 16:32:14 -05:00
jitterentropy-kcapi.c crypto: jitterentropy - drop duplicate header module.h 2016-11-17 23:34:52 +08:00
jitterentropy.c
Kconfig crypto: aes_ti - disable interrupts while accessing S-box 2019-02-12 19:45:57 +01:00
keywrap.c crypto: keywrap - memzero the correct memory 2016-02-01 22:27:05 +08:00
khazad.c
kpp.c crypto: Replaced gcc specific attributes with macros from compiler.h 2017-01-13 00:24:39 +08:00
lrw.c gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:17:11 +02:00
lz4.c crypto: lz4 - fixed decompress function to return error code 2017-04-10 19:17:27 +08:00
lz4hc.c crypto: lz4 - fixed decompress function to return error code 2017-04-10 19:17:27 +08:00
lzo.c treewide: use kv[mz]alloc* rather than opencoded variants 2017-05-08 17:15:13 -07:00
Makefile crypto: aes-generic - fix aes-generic regression on powerpc 2018-09-19 22:43:37 +02:00
mcryptd.c crypto: hash - annotate algorithms taking optional key 2018-02-16 20:23:00 +01:00
md4.c
md5.c md5: remove from lib and only live in crypto 2017-03-24 22:02:56 +08:00
memneq.c
michael_mic.c
pcbc.c crypto: pcbc - remove bogus memcpy()s with src == dest 2019-03-23 14:35:21 +01:00
pcrypt.c crypto: pcrypt - Do not clear MAY_SLEEP flag in original request 2020-02-14 16:32:14 -05:00
poly1305_generic.c crypto: poly1305 - remove ->setkey() method 2018-02-16 20:23:00 +01:00
proc.c
ripemd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rmd128.c
rmd160.c
rmd256.c
rmd320.c
rng.c crypto: rng - ensure that the RNG is ready before using 2017-07-28 17:56:00 +08:00
rsa-pkcs1pad.c crypto: fix a memory leak in rsa-kcs1pad's encryption mode 2019-11-20 18:00:47 +01:00
rsa.c crypto: rsa - comply with crypto_akcipher_maxsize() 2017-06-10 12:04:30 +08:00
rsa_helper.c crypto: rsa - fix buffer overread when stripping leading zeroes 2017-12-20 10:10:17 +01:00
rsaprivkey.asn1 crypto: rsa - Store rest of the private key components 2016-07-05 23:05:26 +08:00
rsapubkey.asn1
salsa20_generic.c crypto: salsa20 - don't access already-freed walk.iv 2019-05-21 18:50:19 +02:00
scatterwalk.c crypto: scatterwalk - Remove unnecessary aliasing check in map_and_copy 2016-11-22 15:02:25 +08:00
scompress.c crypto: scompress - defer allocation of scratch buffer to first use 2017-08-03 13:52:44 +08:00
seed.c
seqiv.c crypto: algapi - make crypto_xor() and crypto_inc() alignment agnostic 2017-02-11 17:52:28 +08:00
serpent_generic.c crypto: serpent - mark __serpent_setkey_sbox noinline 2019-07-31 07:28:30 +02:00
sha1_generic.c
sha3_generic.c crypto: sha3-generic - fixes for alignment and big endian operation 2018-02-03 17:38:51 +01:00
sha256_generic.c
sha512_generic.c
shash.c crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails 2019-03-23 14:35:18 +01:00
simd.c crypto: simd - correctly take reqsize of wrapped skcipher into account 2018-12-01 09:42:53 +01:00
skcipher.c crypto: skcipher - Unmap pages after an external error 2019-10-11 18:18:32 +02:00
tcrypt.c crypto: tcrypt - fix ghash-generic speed test 2018-11-13 11:15:07 -08:00
tcrypt.h
tea.c
testmgr.c crypto: testmgr - skip crc32c context test for ahash algorithms 2019-03-23 14:35:18 +01:00
testmgr.h crypto: x86/poly1305 - fix overflow during partial reduction 2019-04-27 09:35:37 +02:00
tgr192.c crypto: tgr192 - fix unaligned memory access 2020-01-27 14:46:13 +01:00
twofish_common.c
twofish_generic.c
vmac.c crypto: vmac - separate tfm and request context 2018-08-17 21:01:10 +02:00
wp512.c
xcbc.c
xor.c kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK 2018-02-22 15:42:23 +01:00
xts.c gcc-10: avoid shadowing standard library 'free()' in crypto 2020-05-20 08:17:11 +02:00