From nobody Mon Feb 9 10:28:44 2026 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 797FE282F0 for ; Tue, 24 Dec 2024 14:01:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735048879; cv=none; b=Vysn7lI12qdEOvvBDQtTZlHjtGpm8E3SqJ5pGCR7WNNboOJd7DuL+VtgmN0RWRJq3AkCp/C7P/OcyQLNU3g9H6jNfRKjfoRgiAzGFoeB48KA7Cp1nIKGfuQxtKzTbrRoTQfK87G0MoUdrgQSiUDRZzw3bkOHzuVyqHZ31TpInOU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735048879; c=relaxed/simple; bh=an0T8BaHmmjnOIWFrg0XcNclda/TDCEpL5ml8sjKwio=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To; b=cmOWrg+dV3E+BEZCLFk3vwy6yWjg3ty2tr5py4WdxGbXwFmp3ZnTG81xQm0T+6C5oQ+riCEi+zn7tdYXInCege9Z6BsdvCQKplWRl4YiUJwFYkDRhv1fLn8ILCPyfQz8vc6d9ufRZY/DKjda8cWhjXtbcHht3H7/71Mj3xAT7B8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DF3A61CDD; Tue, 24 Dec 2024 06:01:39 -0800 (PST) Received: from e133711.arm.com (e133711.arm.com [10.1.196.55]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 41AC43F59E; Tue, 24 Dec 2024 06:01:11 -0800 (PST) From: Sudeep Holla Date: Tue, 24 Dec 2024 13:57:49 +0000 Subject: [PATCH 2/5] firmware: arm_ffa: Replace UUID buffer to standard UUID format Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20241224-ffa_updates-v1-2-01233aba3e1e@arm.com> References: <20241224-ffa_updates-v1-0-01233aba3e1e@arm.com> In-Reply-To: <20241224-ffa_updates-v1-0-01233aba3e1e@arm.com> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Sudeep Holla , Arnd Bergmann X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1783; i=sudeep.holla@arm.com; h=from:subject:message-id; bh=an0T8BaHmmjnOIWFrg0XcNclda/TDCEpL5ml8sjKwio=; b=owEBbQKS/ZANAwAIAQBBurwxfuKYAcsmYgBnar6lhi4yhEDslzvYCrjWKpW44hclMgOQaNwhi YMs6mHQP7+JAjMEAAEIAB0WIQS6ceUSBvMeskPdk+EAQbq8MX7imAUCZ2q+pQAKCRAAQbq8MX7i mLDyEACrsAezKlrginjjexiWtgrP7eT8IBa0q8aJSh0aqu7z8PezFY1ZgvF+kEjCexmJPryJGSZ ExnfLADqV43gJF/9cf6XUUfMit2MW9jR5Z9eqbRjr1+nGoSyxU1vcploxYGZooL0SwSClZCwFxt xPygmR2sAQ7Q9PIi+8cB0pYgMRfH6Bu6QWu98c9Ckq0DDdvydoMQpp05I7yWwKAO2qDBUlAKqE7 0WAB3vG5sXwadYzWRwaE0YcDfyeVekh4Qa2cYlKGasnE2sjfzPOym8D2BryK4iFMQvYJamkRtaQ jFA8iIWy18sf3/zAWCI48SaJ361jC3gp9XrbWKqOmPck47d6fHjEW+XZINkH9W/gA0qTL0yeBnR 9kWa9hzh5JODhjIOHxAwS2T7dy9qrVdbgE29uOshTB/Zvbs44EBaUCP69XhDfNRbzNr7Fb500kU Lz0LJsafAgGq7+NYByXsqxepIUEjTL5GPGD4/L+H3L7SNP6j2f9D1jme48SbakHpAQy1Woh5rIF QmrKljaKK+RQXhmDFoBrb3LFIfjIncKr1YWhfDmG0HBmfAMvQ5+KKgSPk5bU5rKrpoAXQIZiAVP UExZVOFa6deY4syNjd6BrRXGffcxEeP1e1mIE2SAzEORRT7PWMA+wm0rONKynmtaOzVsO34jj2q 0cj7zi87gOU+tzw== X-Developer-Key: i=sudeep.holla@arm.com; a=openpgp; fpr=7360A21742ADF5A11767C1C139CFD4755FE2D5B4 Currently ffa_partition_info structure holds the UUID in the format compatible with the firmware interface. However, most of the functions in the FF-A core driver deals directly with uuid_t type. Replace UUID buffer to standard UUID format in the ffa_partition_info structure. Signed-off-by: Sudeep Holla --- drivers/firmware/arm_ffa/bus.c | 4 +--- include/linux/arm_ffa.h | 2 +- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c index 52b1f09209a0e51e321cd23a69aa7e4c4daa8dd1..a90e2faa990219574ff20b8f573= dbb7ca76137d9 100644 --- a/drivers/firmware/arm_ffa/bus.c +++ b/drivers/firmware/arm_ffa/bus.c @@ -192,7 +192,6 @@ ffa_device_register(const struct ffa_partition_info *pa= rt_info, const struct ffa_ops *ops) { int id, ret; - uuid_t uuid; struct device *dev; struct ffa_device *ffa_dev; =20 @@ -218,8 +217,7 @@ ffa_device_register(const struct ffa_partition_info *pa= rt_info, ffa_dev->vm_id =3D part_info->id; ffa_dev->properties =3D part_info->properties; ffa_dev->ops =3D ops; - import_uuid(&uuid, (u8 *)part_info->uuid); - uuid_copy(&ffa_dev->uuid, &uuid); + uuid_copy(&ffa_dev->uuid, &part_info->uuid); =20 ret =3D device_register(&ffa_dev->dev); if (ret) { diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h index 74169dd0f65948b05991732358855cdc31b54adb..abd0208f0f74c15ef4ee4c81de8= 1eb7800a0eb1d 100644 --- a/include/linux/arm_ffa.h +++ b/include/linux/arm_ffa.h @@ -238,7 +238,7 @@ struct ffa_partition_info { /* partition runs in the AArch64 execution state. */ #define FFA_PARTITION_AARCH64_EXEC BIT(8) u32 properties; - u32 uuid[4]; + uuid_t uuid; }; =20 static inline --=20 2.34.1