From patchwork Tue Dec 17 22:16:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 11298919 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B393B921 for ; Tue, 17 Dec 2019 22:19:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9AE3221775 for ; Tue, 17 Dec 2019 22:19:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727215AbfLQWTW (ORCPT ); Tue, 17 Dec 2019 17:19:22 -0500 Received: from mout.kundenserver.de ([212.227.17.10]:34075 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727165AbfLQWTV (ORCPT ); Tue, 17 Dec 2019 17:19:21 -0500 Received: from threadripper.lan ([149.172.19.189]) by mrelayeu.kundenserver.de (mreue108 [212.227.15.145]) with ESMTPA (Nemesis) id 1M8QJq-1icvIw1gYq-004PCA; Tue, 17 Dec 2019 23:17:30 +0100 From: Arnd Bergmann To: Jens Axboe , "James E.J. Bottomley" , "Martin K. Petersen" Cc: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, y2038@lists.linaro.org, linux-kernel@vger.kernel.org, Christoph Hellwig , Ben Hutchings , linux-doc@vger.kernel.org, corbet@lwn.net, viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, Arnd Bergmann Subject: [PATCH v2 16/27] compat_ioctl: bsg: add handler Date: Tue, 17 Dec 2019 23:16:57 +0100 Message-Id: <20191217221708.3730997-17-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20191217221708.3730997-1-arnd@arndb.de> References: <20191217221708.3730997-1-arnd@arndb.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:CcW0OER95wDXq0YetFdqoTdTEnAWcPISLF3QDQtri9hrxSFvPXG fBdpTLjhv0iKK2rBmn4jyDnjys1/pVoz09rAJLkDNE6wj+fddgYodj6iKfELZj3+/PdHrcO tw2Gy4JzU2ZMgdpd+jxtzid1wBePiv+WmdPlrT6nYzzMvTt7km/aGxMnd97UOOoejnfCoWW 3LytDdHjU3oriRUGkNmhg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:Yj2mPlnFp94=:fKjchY6xasw3iPgAiTTlST y2fJLfy8whAQA/X2JktR72kckWBi+i+GEgdIL1mIGmyUXnZeEfx3jWleiclTjPFTEBCBFDJG1 LoMm7vit2smCIWZGk0nKs7UkMSSPS6mvR65hs5LpSANX+RaU3V7ZeKeA2idWlUnrHmUdvvibW +LQWNNSDTYtRkk/PNlXcEA6YkgeLx1SHpOD+VHOB5cmlFFpYGyeM3RLnFFo619lx1X5D4ussB uqqdu+Nw6bQm+WKgAQewdSLPTnLm4UDHvOeL4FglMwkbnotBzQ5uEclxuKlWcJqgGkCI3Wlsa YlrYI4rnIsbPU1T3/dxGG+MXkafh0q8q/Q3x/aJPHzic/vq6ILaZ5oqEB3Jpjm7qZlXfvjiLC KRicjRF7eptVnI8dEu+/dRlm2wIKp5QbMekshiCZ6dMt5Hu70cie3YtrGyG/l3nsFgAOcgEQD 3I9TUzjmYpQ6XfZYgGk1k5Tyv6UhDeccLVyIDIGneWMxwg/8JRCDHiU3nVKTTX2x9JlepYfYA pn44I3n4hpd2M7d/Mozo5exhR/zqgs/OqS5dv2B5egGWjpFEm0cSNddo4KOjqs1VMhFN9IWci rJnQWp8uhzgSp7R2NGiD+cpQpiJDTzFkNYFo+mUeQdwyqECBf/UxeyIC6fgkRO8AbH1jCnRuq Bdk4xAS8wttqqA5ORCTI+u4uCS6TvUopNrl7ez2lDq2Ytoqn9wweQHdfiSMwxQaroKFRt2JO2 sz7QiNH9ux8S3D0ZAMAZXmZ7xZPAQNAqU4s4Spd0Du7vRE8GYvEvbtl0FQCX8LSuIZukuOnaC eAGqMMEkqmSN+sY8xwVupa0n2qbWj21AbUF4pNA9Bw1h4CY3Utti2W04Du/wCUTADSvQkO5Jz Eo+g0fwG0WoTSGpv4V5w== Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org bsg_ioctl() calls into scsi_cmd_ioctl() for a couple of generic commands and relies on fs/compat_ioctl.c to handle it correctly in compat mode. Adding a private compat_ioctl() handler avoids that round-trip and lets us get rid of the generic emulation once this is done. Note that bsg implements an SG_IO command that is different from the other drivers and does not need emulation. Signed-off-by: Arnd Bergmann --- block/bsg.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/bsg.c b/block/bsg.c index 833c44b3d458..d7bae94b64d9 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -382,6 +382,7 @@ static const struct file_operations bsg_fops = { .open = bsg_open, .release = bsg_release, .unlocked_ioctl = bsg_ioctl, + .compat_ioctl = compat_ptr_ioctl, .owner = THIS_MODULE, .llseek = default_llseek, };