linux-kernel - [PATCH v2 2/2] crypto: hisilicon/qm - fix the process of VF's list adding

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1621591364-46526-3-git-send-email-yekai13@huawei.com>
Date:   Fri, 21 May 2021 18:02:44 +0800
From:   Kai Ye <yekai13@...wei.com>
To:     <herbert@...dor.apana.org.au>
CC:     <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <wangzhou1@...ilicon.com>, <yekai13@...wei.com>
Subject: [PATCH v2 2/2] crypto: hisilicon/qm - fix the process of VF's list adding

If Kunpeng 920 enabled the sva mode, the "qm alg register" process will
return directly. So the list of VF wasn't added to QM list.

Signed-off-by: Kai Ye <yekai13@...wei.com>
---
 drivers/crypto/hisilicon/qm.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index deb104e..c671f94 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -4256,17 +4256,17 @@ int hisi_qm_alg_register(struct hisi_qm *qm, struct hisi_qm_list *qm_list)
 	int flag = 0;
 	int ret = 0;
 
-	if (qm->ver <= QM_HW_V2 && qm->use_sva) {
-		dev_info(dev, "HW V2 not both use uacce sva mode and hardware crypto algs.\n");
-		return 0;
-	}
-
 	mutex_lock(&qm_list->lock);
 	if (list_empty(&qm_list->list))
 		flag = 1;
 	list_add_tail(&qm->list, &qm_list->list);
 	mutex_unlock(&qm_list->lock);
 
+	if (qm->ver <= QM_HW_V2 && qm->use_sva) {
+		dev_info(dev, "HW V2 not both use uacce sva mode and hardware crypto algs.\n");
+		return 0;
+	}
+
 	if (flag) {
 		ret = qm_list->register_to_crypto(qm);
 		if (ret) {
@@ -4291,13 +4291,13 @@ EXPORT_SYMBOL_GPL(hisi_qm_alg_register);
  */
 void hisi_qm_alg_unregister(struct hisi_qm *qm, struct hisi_qm_list *qm_list)
 {
-	if (qm->ver <= QM_HW_V2 && qm->use_sva)
-		return;
-
 	mutex_lock(&qm_list->lock);
 	list_del(&qm->list);
 	mutex_unlock(&qm_list->lock);
 
+	if (qm->ver <= QM_HW_V2 && qm->use_sva)
+		return;
+
 	if (list_empty(&qm_list->list))
 		qm_list->unregister_from_crypto(qm);
 }
-- 
2.8.1