From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4D5FB283FC4; Sun, 27 Sep 2026 10:56:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790506579; cv=none; b=koN8Er+BR2vRe6CZHfTMYBxCnVW+b3P1wAJyHykEFhwDu2jW4KNBzynIXeDjMji/+NEuulIW4kQqqWfGacE5RPLcQzLlg9VKbfpE5I0J6fAKZmBI5z4BwBwWg+CJAcOmINOczCPsT6fNjfz7aAdnYGPFtsJeYRgZ9f7r18NAyEo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790506579; c=relaxed/simple; bh=oJwSkogOlCkJEX2M9qOFXIHtwxo4wSLRSS7i/KL9jd4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=GeM+xBMgdvlgGy+8xTPibwxM+RfpVZYQEi45Yyz2YuAq9volL2ggXAHYcaCd876AVCa0JxMiKFQ+bIeXDkDvqatqliKzNXGwYFJX17B2RGFu1rB5UXpXaQysQJi8Qz0FXMuBo2tuQCBrbN3Ev7MG0ckkiaaRQKN7pKGztncYHRg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YV6Eu9sg; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YV6Eu9sg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A19311F000FF; Sun, 27 Sep 2026 10:56:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790506578; bh=RzTxqTERssXjW8NhJ6TLxPG/Cn30rU660hyaG9qd1jU=; h=From:To:Cc:Subject:Date; b=YV6Eu9sgzaJA9BxW42PCheqct8VA3Ct7FxaYz0TZjqqj1Cw7MtBNjeELA/IuHlwfG QP0VlX2LgN3u6S4p0QMJdYFbjTL3Jqf45Yq3XvVlTgAQlY2ATRaim4cWYup7K6Typf bHrd13aVEiEfWEQjlZ+cOYJwjLg5cW7ZauZMiE+b4itMFz1NsJOHUSl2FjrqNDi4Xt fKLRhmxkNHEz0zLYcaWxET8uSHwXnp58tfJ5aoMJsElINThuHaQg0GYq5lhZP/pfUQ wxuhoTgMcUVlioOF/96Qq+F4Nc7hHkYgjaaOktiioJLTtU4LaruXon3sVw+MZyLgJT XdsQd2MqpLkKw== From: Imre Kaloz To: Andreas Larsson , sparclinux@vger.kernel.org Cc: "David S. Miller" , Thomas Gleixner , linux-pci@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH] sparc/pci_msi: Clear the MSI descriptor irq on teardown Date: Sun, 27 Sep 2026 12:55:15 +0200 Message-ID: <20260927105515.8701-1-kaloz@kernel.org> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Since commit 2f2940d16823 ("genirq/msi: Remove filter from msi_free_descs_free_range()") the MSI core expects msi_desc::irq to be cleared by the architecture teardown before the descriptor is freed. sparc64_teardown_msi_irq() never clears it, so disabling MSI or MSI-X warns in msi_domain_free_descs() and leaks the descriptor. Clear it once the MSI has been torn down. Fixes: 2f2940d16823 ("genirq/msi: Remove filter from msi_free_descs_free_range()") Cc: stable@vger.kernel.org Signed-off-by: Imre Kaloz --- arch/sparc/kernel/pci_msi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c index acb2f83a1d5c..bb1610497b50 100644 --- a/arch/sparc/kernel/pci_msi.c +++ b/arch/sparc/kernel/pci_msi.c @@ -211,6 +211,7 @@ static void sparc64_teardown_msi_irq(unsigned int irq, free_msi(pbm, msi_num); + irq_get_msi_desc(irq)->irq = 0; irq_set_chip(irq, NULL); irq_free(irq); } base-commit: fe2ec83746e501645709761605c2464a44fd2929 -- 2.47.3