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From: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
To: "Jens Wiklander" <jens.wiklander@linaro.org>,
	"Sumit Garg" <sumit.garg@kernel.org>,
	"Bjorn Andersson" <andersson@kernel.org>,
	"Konrad Dybcio" <konradybcio@kernel.org>,
	"Bartosz Golaszewski" <bartosz.golaszewski@linaro.org>,
	"Apurupa Pattapu" <quic_apurupa@quicinc.com>,
	"Kees Cook" <kees@kernel.org>,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	"Sumit Semwal" <sumit.semwal@linaro.org>,
	"Christian König" <christian.koenig@amd.com>
Cc: Harshal Dev <quic_hdev@quicinc.com>,
	linux-arm-msm@vger.kernel.org, op-tee@lists.trustedfirmware.org,
	linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org,
	dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
	linux-doc@vger.kernel.org,
	Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>,
	Sumit Garg <sumit.garg@oss.qualcomm.com>
Subject: [PATCH v6 01/12] tee: allow a driver to allocate a tee_device without a pool
Date: Sun, 13 Jul 2025 17:49:13 -0700	[thread overview]
Message-ID: <20250713-qcom-tee-using-tee-ss-without-mem-obj-v6-1-697fb7d41c36@oss.qualcomm.com> (raw)
In-Reply-To: <20250713-qcom-tee-using-tee-ss-without-mem-obj-v6-0-697fb7d41c36@oss.qualcomm.com>

A TEE driver doesn't always need to provide a pool if it doesn't
support memory sharing ioctls and can allocate memory for TEE
messages in another way. Although this is mentioned in the
documentation for tee_device_alloc(), it is not handled correctly.

Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Signed-off-by: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
---
 drivers/tee/tee_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index acc7998758ad..133447f25065 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -889,7 +889,7 @@ struct tee_device *tee_device_alloc(const struct tee_desc *teedesc,
 
 	if (!teedesc || !teedesc->name || !teedesc->ops ||
 	    !teedesc->ops->get_version || !teedesc->ops->open ||
-	    !teedesc->ops->release || !pool)
+	    !teedesc->ops->release)
 		return ERR_PTR(-EINVAL);
 
 	teedev = kzalloc(sizeof(*teedev), GFP_KERNEL);

-- 
2.34.1


  reply	other threads:[~2025-07-14  0:50 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-14  0:49 [PATCH v6 00/12] Trusted Execution Environment (TEE) driver for Qualcomm TEE (QTEE) Amirreza Zarrabi
2025-07-14  0:49 ` Amirreza Zarrabi [this message]
2025-07-14  0:49 ` [PATCH v6 02/12] tee: add close_context to TEE driver operation Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 03/12] tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 04/12] tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 05/12] tee: increase TEE_MAX_ARG_SIZE to 4096 Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 06/12] firmware: qcom: scm: add support for object invocation Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 07/12] firmware: qcom: scm: remove unused arguments to the shm_brige Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 08/12] firmware: qcom: tzmem: export shm_bridge create/delete Amirreza Zarrabi
2025-07-14  8:22   ` kernel test robot
2025-07-14  0:49 ` [PATCH v6 09/12] tee: add Qualcomm TEE driver Amirreza Zarrabi
2025-07-14 18:49   ` kernel test robot
2025-07-21 10:40   ` Sumit Garg
2025-07-24  3:18     ` Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 10/12] qcomtee: add primordial object Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 11/12] qcomtee: enable TEE_IOC_SHM_ALLOC ioctl Amirreza Zarrabi
2025-07-14  0:49 ` [PATCH v6 12/12] Documentation: tee: Add Qualcomm TEE driver Amirreza Zarrabi
2025-07-21 10:41   ` Sumit Garg

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