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Mon, 30 Mar 2026 08:50:25 -0700 (PDT) Received: from [192.168.100.6] ([2800:bf0:82:11a2:7ac4:1f2:947b:2b6]) by smtp.gmail.com with ESMTPSA id 71dfb90a1353d-56d586adfa9sm8978871e0c.0.2026.03.30.08.50.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Mar 2026 08:50:25 -0700 (PDT) From: Kurt Borja Date: Mon, 30 Mar 2026 10:50:03 -0500 Subject: [PATCH] platform/x86: alienware-wmi-base: Transition to new WMI API 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: <20260330-aw-new-api-v1-1-95910bfa1b38@gmail.com> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/x3MQQqAIBBA0avErBtwlCK6SrQQG2s2JgoZiHdPW r7F/xUyJ+EM61Ah8SNZ7tBB4wDusuFklKMbtNKzIm3QFgxc0EZBcrR4UkTeTNCDmNjL+8+2vbU Pkfy0ClwAAAA= X-Change-ID: 20260123-aw-new-api-1c18f1011f35 To: =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Armin Wolf , Hans de Goede Cc: platform-driver-x86@vger.kernel.org, Dell.Client.Kernel@dell.com, linux-kernel@vger.kernel.org, Kurt Borja X-Mailer: b4 0.15.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1865; i=kuurtb@gmail.com; h=from:subject:message-id; bh=tqAzc0do0U2xdxUstVUhKV4EBKAFQCnD93ZBaW5WJhw=; b=owGbwMvMwCUmluBs8WX+lTTG02pJDJmnZm/9N2WRd+azbT9Wd+Uyclb7OWwozm9K33y7ZteMt bP2xacf7ChlYRDjYpAVU2RpT1j07VFU3lu/A6H3YeawMoEMYeDiFICJrIxk+MP1PNI9pcM4fsnM gxumfrZ5+52jL7/15AX5PfGbs1V/bfrF8E99XsbiJs2LjxOVNXfHsx6/GF9ScVfjwazfE99c0sz RSOYCAA== X-Developer-Key: i=kuurtb@gmail.com; a=openpgp; fpr=54D3BE170AEF777983C3C63B57E3B6585920A69A Transition to the new wmi_buffer based WMI API. Signed-off-by: Kurt Borja --- drivers/platform/x86/dell/alienware-wmi-base.c | 29 ++++++++++++++--------= ---- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/platform/x86/dell/alienware-wmi-base.c b/drivers/platf= orm/x86/dell/alienware-wmi-base.c index 64562b92314f..ef2b4893b7b5 100644 --- a/drivers/platform/x86/dell/alienware-wmi-base.c +++ b/drivers/platform/x86/dell/alienware-wmi-base.c @@ -9,7 +9,6 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt =20 #include -#include #include #include #include @@ -150,23 +149,27 @@ u8 alienware_interface; int alienware_wmi_command(struct wmi_device *wdev, u32 method_id, void *in_args, size_t in_size, u32 *out_data) { - struct acpi_buffer out =3D {ACPI_ALLOCATE_BUFFER, NULL}; - struct acpi_buffer in =3D {in_size, in_args}; - acpi_status ret; + struct wmi_buffer out, in =3D { + .data =3D in_args, + .length =3D in_size, + }; + int ret; =20 - ret =3D wmidev_evaluate_method(wdev, 0, method_id, &in, out_data ? &out := NULL); - if (ACPI_FAILURE(ret)) - return -EIO; + ret =3D wmidev_invoke_method(wdev, 0, method_id, &in, out_data ? &out : N= ULL); + if (ret) + return ret; =20 - union acpi_object *obj __free(kfree) =3D out.pointer; + if (!out_data) + return 0; =20 - if (out_data) { - if (obj && obj->type =3D=3D ACPI_TYPE_INTEGER) - *out_data =3D (u32)obj->integer.value; - else - return -ENOMSG; + if (out.length < sizeof(*out_data)) { + kfree(out.data); + return -ENOMSG; } =20 + *out_data =3D *(u32 *)out.data; + kfree(out.data); + return 0; } =20 --- base-commit: fab7c51693e95aa874d6d9db22bfae7bd0b23c66 change-id: 20260123-aw-new-api-1c18f1011f35 --=20 Thanks,=20 ~ Kurt