diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-04-23 17:22:28 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-04-28 19:40:54 +0800 |
| commit | 19da081a28c95fe9b03ce952a2bf4a6f6bf5112c (patch) | |
| tree | 224f4fc987087caa04437c1c10b26256cb7b245d /crypto/api.c | |
| parent | af9ce62783dd6acd595491badec08f1235c84739 (diff) | |
crypto: api - Add crypto_request_clone and fb
Add a helper to clone crypto requests and eliminate code duplication.
Use kmemdup in the helper.
Also add an fb field to crypto_tfm.
This also happens to fix the existing implementations which were
buggy.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202504230118.1CxUaUoX-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202504230004.c7mrY0C6-lkp@intel.com/
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/api.c')
| -rw-r--r-- | crypto/api.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/crypto/api.c b/crypto/api.c index e427cc5662b5..172e82f79c69 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -528,6 +528,7 @@ void *crypto_create_tfm_node(struct crypto_alg *alg, goto out; tfm = (struct crypto_tfm *)(mem + frontend->tfmsize); + tfm->fb = tfm; err = frontend->init_tfm(tfm); if (err) @@ -712,5 +713,22 @@ void crypto_destroy_alg(struct crypto_alg *alg) } EXPORT_SYMBOL_GPL(crypto_destroy_alg); +struct crypto_async_request *crypto_request_clone( + struct crypto_async_request *req, size_t total, gfp_t gfp) +{ + struct crypto_tfm *tfm = req->tfm; + struct crypto_async_request *nreq; + + nreq = kmemdup(req, total, gfp); + if (!nreq) { + req->tfm = tfm->fb; + return req; + } + + nreq->flags &= ~CRYPTO_TFM_REQ_ON_STACK; + return nreq; +} +EXPORT_SYMBOL_GPL(crypto_request_clone); + MODULE_DESCRIPTION("Cryptographic core API"); MODULE_LICENSE("GPL"); |