diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2018-11-13 10:58:49 +0100 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2018-11-13 10:59:10 +0100 |
| commit | 0ea0397a3a12f9720d6acb78a48da796a54e81aa (patch) | |
| tree | e2078363019cb2fde493844d7f25293412c4b6df /crypto/skcipher.c | |
| parent | 913240696ec64a2af2de250b1591cc45b5cea2f6 (diff) | |
| parent | 651022382c7f8da46cb4872a545ee1da6d097d2a (diff) | |
Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
drm-next is forwarded to v4.20-rc1, and we need this to make
a patch series apply.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'crypto/skcipher.c')
| -rw-r--r-- | crypto/skcipher.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/crypto/skcipher.c b/crypto/skcipher.c index 0bd8c6caa498..4caab81d2d02 100644 --- a/crypto/skcipher.c +++ b/crypto/skcipher.c @@ -949,6 +949,30 @@ struct crypto_skcipher *crypto_alloc_skcipher(const char *alg_name, } EXPORT_SYMBOL_GPL(crypto_alloc_skcipher); +struct crypto_sync_skcipher *crypto_alloc_sync_skcipher( + const char *alg_name, u32 type, u32 mask) +{ + struct crypto_skcipher *tfm; + + /* Only sync algorithms allowed. */ + mask |= CRYPTO_ALG_ASYNC; + + tfm = crypto_alloc_tfm(alg_name, &crypto_skcipher_type2, type, mask); + + /* + * Make sure we do not allocate something that might get used with + * an on-stack request: check the request size. + */ + if (!IS_ERR(tfm) && WARN_ON(crypto_skcipher_reqsize(tfm) > + MAX_SYNC_SKCIPHER_REQSIZE)) { + crypto_free_skcipher(tfm); + return ERR_PTR(-EINVAL); + } + + return (struct crypto_sync_skcipher *)tfm; +} +EXPORT_SYMBOL_GPL(crypto_alloc_sync_skcipher); + int crypto_has_skcipher2(const char *alg_name, u32 type, u32 mask) { return crypto_type_has_alg(alg_name, &crypto_skcipher_type2, |