From patchwork Sat May 28 22:01:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sinan Kaya X-Patchwork-Id: 9139607 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 24096607D2 for ; Sat, 28 May 2016 22:05:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1379426E82 for ; Sat, 28 May 2016 22:05:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0864425819; Sat, 28 May 2016 22:05:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BED9226E82 for ; Sat, 28 May 2016 22:05:12 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1b6mJH-0007Hh-OA; Sat, 28 May 2016 22:02:19 +0000 Received: from smtp.codeaurora.org ([198.145.29.96]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1b6mIo-00074K-9e for linux-arm-kernel@lists.infradead.org; Sat, 28 May 2016 22:01:51 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 14534613C2; Sat, 28 May 2016 22:01:31 +0000 (UTC) Received: from drakthul.qualcomm.com (global_nat1_iad_fw.qualcomm.com [129.46.232.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: okaya@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 7890F613A1; Sat, 28 May 2016 22:01:29 +0000 (UTC) From: Sinan Kaya To: kvm@vger.kernel.org, timur@codeaurora.org, cov@codeaurora.org, jcm@redhat.com, eric.auger@linaro.org Subject: [PATCH V6 4/8] vfio: platform: add extra debug info argument to call reset Date: Sat, 28 May 2016 18:01:14 -0400 Message-Id: <1464472878-27176-5-git-send-email-okaya@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1464472878-27176-1-git-send-email-okaya@codeaurora.org> References: <1464472878-27176-1-git-send-email-okaya@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160528_150150_564108_E5947400 X-CRM114-Status: GOOD ( 11.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Baptiste Reynal , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Sinan Kaya , linux-acpi@vger.kernel.org, Alex Williamson , agross@codeaurora.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Getting ready to bring out extra debug information to the caller so that more verbose information can be printed when an error is observed. Signed-off-by: Sinan Kaya --- drivers/vfio/platform/vfio_platform_common.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c index fbf4565..e7ce2c2 100644 --- a/drivers/vfio/platform/vfio_platform_common.c +++ b/drivers/vfio/platform/vfio_platform_common.c @@ -171,7 +171,8 @@ static void vfio_platform_regions_cleanup(struct vfio_platform_device *vdev) kfree(vdev->regions); } -static int vfio_platform_call_reset(struct vfio_platform_device *vdev) +static int vfio_platform_call_reset(struct vfio_platform_device *vdev, + const char **extra_dbg) { if (vdev->of_reset) { dev_info(vdev->device, "reset\n"); @@ -189,7 +190,7 @@ static void vfio_platform_release(void *device_data) mutex_lock(&driver_lock); if (!(--vdev->refcnt)) { - vfio_platform_call_reset(vdev); + vfio_platform_call_reset(vdev, NULL); vfio_platform_regions_cleanup(vdev); vfio_platform_irq_cleanup(vdev); } @@ -218,7 +219,7 @@ static int vfio_platform_open(void *device_data) if (ret) goto err_irq; - vfio_platform_call_reset(vdev); + vfio_platform_call_reset(vdev, NULL); } vdev->refcnt++; @@ -350,7 +351,7 @@ static long vfio_platform_ioctl(void *device_data, return ret; } else if (cmd == VFIO_DEVICE_RESET) { - return vfio_platform_call_reset(vdev); + return vfio_platform_call_reset(vdev, NULL); } return -ENOTTY;