From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933399AbaHEK6S (ORCPT ); Tue, 5 Aug 2014 06:58:18 -0400 Received: from mailout3.w1.samsung.com ([210.118.77.13]:18304 "EHLO mailout3.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754783AbaHEKs4 (ORCPT ); Tue, 5 Aug 2014 06:48:56 -0400 X-AuditID: cbfec7f4-b7f156d0000063c7-ad-53e0b6966202 From: Marek Szyprowski To: iommu@lists.linux-foundation.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Marek Szyprowski , linaro-mm-sig@lists.linaro.org, Arnd Bergmann , Shaik Ameer Basha , Cho KyongHo , Joerg Roedel , Thierry Reding , Olof Johansson , Laurent Pinchart , Rob Herring , Greg Kroah-Hartman , "Rafael J. Wysocki" , Inki Dae , Kukjin Kim , Sylwester Nawrocki , Tomasz Figa , Kyungmin Park Subject: [PATCH 06/29] drivers: iommu: add notify about failed bind Date: Tue, 05 Aug 2014 12:47:34 +0200 Message-id: <1407235677-26324-7-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.9.2 In-reply-to: <1407235677-26324-1-git-send-email-m.szyprowski@samsung.com> References: <1407235677-26324-1-git-send-email-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrOLMWRmVeSWpSXmKPExsVy+t/xq7rTtj0INph3mc3i76Rj7BbNi9ez WUy6P4HFYsF+a4vO2RvYLXoXXGWzONv0ht2ic+ISdosvVx4yWWx6fI3V4vKuOWwWM87vY7JY e+Quu8Wp65/ZLP71HmS0OHP6EqvF/z072C0Ov2lntTjycDe7xapdfxgtbv/mcxD1eHJwHpPH 71+TGD12zrrL7jG7Yyarx6ZVnWwe++euYffYvKTe4/a/x8wek28sZ/S4cqKJ1aO3+R2bx5ar 7SwefVtWMXp83iQXwBfFZZOSmpNZllqkb5fAlbH7u3DBB+6Kg7+vsjQwtnB1MXJySAiYSJy7 focNwhaTuHBvPZDNxSEksJRR4uD1JawQTh+TxI+mm8wgVWwChhJdb7vAqkQEehkl+pt+MIE4 zALrWCX2915nAakSFnCWOPZ6HthcFgFVib5tu1hBbF4BD4m1LQfYIfbJSfx/uYIJxOYU8JQ4 fPMAWI0QUM3PDWvYJzDyLmBkWMUomlqaXFCclJ5rqFecmFtcmpeul5yfu4kREjlfdjAuPmZ1 iFGAg1GJh9fg9N1gIdbEsuLK3EOMEhzMSiK8EmseBAvxpiRWVqUW5ccXleakFh9iZOLglGpg LJrGqLPqFO/cv7U17EqTNfunXPnyaNK/110J3b01Edf+rliyq8XNWGjXlj3+F/1Tl0/awRWf 85DbvvtxcW3rRx8p48lni+f/XuY8eaqc7vkHybtWO/+P27TC49sepiqDeU2fvzKUrAm+dGyJ dN+VRVkXfZKv9fOefNa1PCl53VL74CWaBmxLE5RYijMSDbWYi4oTATjswiV6AgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds support for forwarding recently introduced BUS_NOTIFY_DRVBIND_FAILED event to iommu groups. This lets us getting a notify for failed device driver bind, so all the items done in IOMMU_GROUP_NOTIFY_BIND_DRIVER event can be cleaned if the driver fails to bind. Signed-off-by: Marek Szyprowski --- drivers/iommu/iommu.c | 3 +++ include/linux/iommu.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 1698360..516e93a 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -758,6 +758,9 @@ static int iommu_bus_notifier(struct notifier_block *nb, case BUS_NOTIFY_UNBOUND_DRIVER: group_action = IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER; break; + case BUS_NOTIFY_DRVBIND_FAILED: + group_action = IOMMU_GROUP_NOTIFY_DRVBIND_FAILED; + break; } if (group_action) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 20f9a52..f9fdae5 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -139,6 +139,7 @@ struct iommu_ops { #define IOMMU_GROUP_NOTIFY_BOUND_DRIVER 4 /* Post Driver bind */ #define IOMMU_GROUP_NOTIFY_UNBIND_DRIVER 5 /* Pre Driver unbind */ #define IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER 6 /* Post Driver unbind */ +#define IOMMU_GROUP_NOTIFY_DRVBIND_FAILED 7 /* Driver failed to bind */ extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops); extern bool iommu_present(struct bus_type *bus); -- 1.9.2