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Fix GCC 12 compilation errors

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Squelch false positives reported by GCC 12 with UBSan.

Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #14150
This commit is contained in:
szubersk
2022-11-30 20:27:28 +10:00
committed by Brian Behlendorf
parent 3a6d89ae52
commit 3c1e1933b6
9 changed files with 125 additions and 4 deletions
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module/os/linux/zfs/zio_crypt.c
+17
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@@ -229,7 +229,24 @@ zio_crypt_key_init(uint64_t crypt, zio_crypt_key_t *key)
ASSERT(key != NULL);
ASSERT3U(crypt, <, ZIO_CRYPT_FUNCTIONS);
/*
* Workaround for GCC 12+ with UBSan enabled deficencies.
*
* GCC 12+ invoked with -fsanitize=undefined incorrectly reports the code
* below as violating -Warray-bounds
*/
#if defined(__GNUC__) && !defined(__clang__) && \
((!defined(_KERNEL) && defined(ZFS_UBSAN_ENABLED)) || \
defined(CONFIG_UBSAN))
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Warray-bounds"
#endif
keydata_len = zio_crypt_table[crypt].ci_keylen;
#if defined(__GNUC__) && !defined(__clang__) && \
((!defined(_KERNEL) && defined(ZFS_UBSAN_ENABLED)) || \
defined(CONFIG_UBSAN))
#pragma GCC diagnostic pop
#endif
memset(key, 0, sizeof (zio_crypt_key_t));
rw_init(&key->zk_salt_lock, NULL, RW_DEFAULT, NULL);