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[99.254.114.190]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-4e1cfe345f0sm102939173.45.2024.11.21.11.22.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Nov 2024 11:22:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1732216940; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NNGi4ej7Fg7tteZhHhZhqwNjB+z3TQfwwETPIXYXWJc=; b=cIYRuquorjffOkKxoSseRZRjFK7IvsweeTmUUfVcEY+Ea3te2ddXSVLTv3db6a2QCZWYAE 7OlmkoxC/oh4krfFywvLlYCm9R9yiXiJkk7h7YyxMLrqwGwyjj5JDo/DuE4MZKyp+SFefU yhq//u6BorzjevkVEXIgoyqZHulIVJc= X-MC-Unique: ymKFAnaQOB2JH-T_x_bVfQ-1 X-Mimecast-MFC-AGG-ID: ymKFAnaQOB2JH-T_x_bVfQ X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732216938; x=1732821738; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=NNGi4ej7Fg7tteZhHhZhqwNjB+z3TQfwwETPIXYXWJc=; b=Ekwn3vJhEk6VdmR9eA8vbPZBpFODiY2fkJNaX9XYT8LMaF8qQEnzzVcparU/kqWJNW EuasaAFBykNW5G+1PJZGQc9EaFrQXP/YJZUuo/TPk+U1hrHG88lpTEMNZecXMbAQ75O1 tmSTQY2LO+n6WFdQt6NTfOJ9SlKkesOCUv1L317yU3xLKkJZuV9KA6tW4/ON4wRZikZF lLgX/NtwnhA8GZn2hEKEqMJkP/dBkNoBAf8vRn034Yo6eg/FZb/n8Ar2L+GfaFTA3vcb bxzX6hRNI7aJTrqPsww4Afd/Z6kBxpWOmlt3cuk1N+5Efr9dob64BXQbbDsPjW+kEejI 0I5w== X-Gm-Message-State: AOJu0YzJWgEgpP6OMP0kqm4ShJqK0cVXTfp+nXhuh/uvyZ/9R7Xr3dQE GFhLbIx4GmXi7WxCRdiXusAxMYJHtTEf6hPBouY+3PGZNd23SLtPaa7nvqvTumMstRq/kvbWa8P lgiIPjbNM2kw+eGscxwqH0BbBLYE05KKmNEdMEFlcRGowNmkj6AOiWEGMWa6ExdxrMeTztDP5Te eAq1HmfLhl9TVVKPempii64aUvOerhLwz9vA== X-Gm-Gg: ASbGnctOEa2RKLoY3SVbIkLahqz+61jyMdUOlBVRCC7aQtYkrkhymBGfPeu7QMZoftj D28kKi6qmS1S4EJD9yB5bhlA21js7cukv9+U840hPp38BbT97AiGYFftxryhC2TWd7R/kbsjsRH Uvg7KsBFhhtreByYC3jgsdqgg+LcaIq1ehDYUDZ5k9wwI1lyQv0ngZWtHszuLc6Z6by1Ltg6uAm NWdictGgYv22HYHnTzol8ubBr81kr5zQCjvPRARVBIO31z4sHD6G096P5eJJtD5IcjPYfKgO12e QUNiU5CwGtB0+m8GBlR82hTK1g== X-Received: by 2002:a92:cd8a:0:b0:3a3:b45b:fb92 with SMTP id e9e14a558f8ab-3a79af36205mr2876675ab.23.1732216938009; Thu, 21 Nov 2024 11:22:18 -0800 (PST) X-Google-Smtp-Source: AGHT+IFCi+Pj7dPKfs3PacewTfRe6i2e4IKQWd9yM8AWlvX1od0kORirM6HVAIy/baI5mfV1pnEQdA== X-Received: by 2002:a92:cd8a:0:b0:3a3:b45b:fb92 with SMTP id e9e14a558f8ab-3a79af36205mr2876115ab.23.1732216937538; Thu, 21 Nov 2024 11:22:17 -0800 (PST) From: Peter Xu To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Markus Armbruster , Peter Maydell , Juraj Marcin , peterx@redhat.com, =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , Fabiano Rosas , Paolo Bonzini , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Eduardo Habkost Subject: [PATCH v2 08/13] qdev: Make qdev_get_machine() not use container_get() Date: Thu, 21 Nov 2024 14:21:57 -0500 Message-ID: <20241121192202.4155849-9-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20241121192202.4155849-1-peterx@redhat.com> References: <20241121192202.4155849-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.14, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1732217125584116600 Content-Type: text/plain; charset="utf-8" Currently, qdev_get_machine() has a slight misuse on container_get(), as the helper says "get a container" but in reality the goal is to get the machine object. It is still a "container" but not strictly. Note that it _may_ get a container (at "/machine") in our current unit test of test-qdev-global-props.c before all these changes, but it's probably unexpected and worked by accident. Switch to an explicit object_resolve_path_component(), with a side benefit that qdev_get_machine() can happen a lot, and we don't need to split the string ("/machine") every time. This also paves way for making the helper container_get() never try to return a non-container at all. Signed-off-by: Peter Xu Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/core/qdev.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/core/qdev.c b/hw/core/qdev.c index 5f13111b77..b622be15ee 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -817,7 +817,12 @@ Object *qdev_get_machine(void) static Object *dev; =20 if (dev =3D=3D NULL) { - dev =3D container_get(object_get_root(), "/machine"); + dev =3D object_resolve_path_component(object_get_root(), "machine"= ); + /* + * Any call to this function before machine is created is treated + * as a programming error as of now. + */ + assert(dev); } =20 return dev; --=20 2.45.0