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From: Amirreza Zarrabi <quic_azarrabi@quicinc.com>
To: Jens Wiklander <jens.wiklander@linaro.org>,
	Sumit Garg <sumit.garg@linaro.org>,
	Bjorn Andersson <andersson@kernel.org>,
	"Konrad Dybcio" <konradybcio@kernel.org>,
	Rob Herring <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	"Bartosz Golaszewski" <bartosz.golaszewski@linaro.org>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: <linux-arm-msm@vger.kernel.org>,
	<op-tee@lists.trustedfirmware.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-doc@vger.kernel.org>,
	Amirreza Zarrabi <quic_azarrabi@quicinc.com>
Subject: [PATCH v2 1/8] tee: allow a driver to allocate a tee_device without a pool
Date: Sun, 2 Feb 2025 18:43:29 -0800	[thread overview]
Message-ID: <20250202-qcom-tee-using-tee-ss-without-mem-obj-v2-1-297eacd0d34f@quicinc.com> (raw)
In-Reply-To: <20250202-qcom-tee-using-tee-ss-without-mem-obj-v2-0-297eacd0d34f@quicinc.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.

Signed-off-by: Amirreza Zarrabi <quic_azarrabi@quicinc.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 d113679b1e2d..24edce4cdbaa 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -888,7 +888,7 @@ 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:[~2025-02-03  2:44 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-03  2:43 [PATCH v2 0/8] Trusted Execution Environment (TEE) driver for Qualcomm TEE (QTEE) Amirreza Zarrabi
2025-02-03  2:43 ` Amirreza Zarrabi [this message]
2025-02-03  2:43 ` [PATCH v2 2/8] tee: add close_context to TEE driver operation Amirreza Zarrabi
2025-02-17  9:35   ` Jens Wiklander
2025-02-17 23:36     ` Amirreza Zarrabi
2025-02-03  2:43 ` [PATCH v2 3/8] tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF Amirreza Zarrabi
2025-02-17 10:10   ` Jens Wiklander
2025-02-17 23:48     ` Amirreza Zarrabi
2025-02-03  2:43 ` [PATCH v2 4/8] tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF Amirreza Zarrabi
2025-02-17 10:28   ` Jens Wiklander
2025-02-17 23:50     ` Amirreza Zarrabi
2025-02-03  2:43 ` [PATCH v2 5/8] firmware: qcom: scm: add support for object invocation Amirreza Zarrabi
2025-02-03  2:43 ` [PATCH v2 6/8] tee: add Qualcomm TEE driver Amirreza Zarrabi
2025-02-03  8:14   ` kernel test robot
2025-02-03 10:39   ` kernel test robot
2025-02-03 12:44   ` kernel test robot
2025-03-04 14:42   ` Jens Wiklander
2025-03-05  0:12     ` Amirreza Zarrabi
2025-02-03  2:43 ` [PATCH v2 7/8] qcomtee: add primordial object Amirreza Zarrabi
2025-02-03  2:43 ` [PATCH v2 8/8] Documentation: tee: Add Qualcomm TEE driver Amirreza Zarrabi
2025-02-05  2:40   ` Bagas Sanjaya
2025-02-05  5:38 ` [PATCH v2 0/8] Trusted Execution Environment (TEE) driver for Qualcomm TEE (QTEE) Sumit Garg
2025-02-06 19:55   ` Amirreza Zarrabi
2025-02-07  5:12     ` Sumit Garg
2025-02-09 20:18       ` Amirreza Zarrabi

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