mainline inclusion from mainline-v6.13-rc1 commit 662f2f13e66d3883b9238b0b96b17886179e60e2 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7RZMT Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... -------------------------------- Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET"), the pcrypt encryption and decryption operations return -EAGAIN when the CPU goes online or offline. In alg_test(), a WARN is generated when pcrypt_aead_decrypt() or pcrypt_aead_encrypt() returns -EAGAIN, the unnecessary panic will occur when panic_on_warn set 1. Fix this issue by calling crypto layer directly without parallelization in that case. Fixes: 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET") Signed-off-by: Yi Yang <yiyang13@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Yi Yang <yiyang13@huawei.com> --- crypto/pcrypt.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c index d0d954fe9d54..7fc79e7dce44 100644 --- a/crypto/pcrypt.c +++ b/crypto/pcrypt.c @@ -117,8 +117,10 @@ static int pcrypt_aead_encrypt(struct aead_request *req) err = padata_do_parallel(ictx->psenc, padata, &ctx->cb_cpu); if (!err) return -EINPROGRESS; - if (err == -EBUSY) - return -EAGAIN; + if (err == -EBUSY) { + /* try non-parallel mode */ + return crypto_aead_encrypt(creq); + } return err; } @@ -166,8 +168,10 @@ static int pcrypt_aead_decrypt(struct aead_request *req) err = padata_do_parallel(ictx->psdec, padata, &ctx->cb_cpu); if (!err) return -EINPROGRESS; - if (err == -EBUSY) - return -EAGAIN; + if (err == -EBUSY) { + /* try non-parallel mode */ + return crypto_aead_decrypt(creq); + } return err; } -- 2.25.1