From patchwork Mon Jul 12 05:47:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 475000 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E4D4C07E99 for ; Mon, 12 Jul 2021 05:52:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 033846108B for ; Mon, 12 Jul 2021 05:52:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231349AbhGLFyt (ORCPT ); Mon, 12 Jul 2021 01:54:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47854 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230107AbhGLFyt (ORCPT ); Mon, 12 Jul 2021 01:54:49 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D217C0613DD; Sun, 11 Jul 2021 22:52:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=1FFbCN+bE2TmDIY+sY/Kn6/5H6jt6tdHUP6xJfdmEg8=; b=DzV9DuDlxrU8tPX0rjqr9hFzWT bQqzeU9qXMUObZVKYpYULs+g6cGiBQxKpECXUFLzfabzzsnEs661hx241KCDI/v1Db77maKqc/l5n XFZdYgND7PgQ4TnQUkmaTkeJ7XsC90D6vsIT6ZUgiozqRSDdwGmpC9vwzuLxINd0T8hD/4YoMoMva D8osmujBLFGLTunGowvAybxn1WW16qlSapdtC6wC6ECtJllU6WfvGVchFX7PfzINDWMvPCdZ23jSw nxIzQhjL2YK2MZZF8npwgZ0NtDOeY5be4wRSM1gaBBnpz7YZ3vO5XKxVjUYg8TO9k/tVBIkn35+jP 8YFMERVg==; Received: from [2001:4bb8:184:8b7c:bd9:61b8:39ba:d78a] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1m2oqB-00Gv8q-Cd; Mon, 12 Jul 2021 05:51:00 +0000 From: Christoph Hellwig To: "Martin K. Petersen" , Jens Axboe , FUJITA Tomonori Cc: Doug Gilbert , =?utf-8?q?Kai_M=C3=A4kisara?= , linux-block@vger.kernel.org, linux-scsi@vger.kernel.org Subject: [PATCH 06/24] scsi: remove scsi_compat_ioctl Date: Mon, 12 Jul 2021 07:47:58 +0200 Message-Id: <20210712054816.4147559-7-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210712054816.4147559-1-hch@lst.de> References: <20210712054816.4147559-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Just handle the compat case in scsi_ioctl using in_compat_syscall(). Signed-off-by: Christoph Hellwig --- drivers/scsi/ch.c | 2 -- drivers/scsi/scsi_ioctl.c | 60 +++++++++++++-------------------------- drivers/scsi/sd.c | 2 -- drivers/scsi/sg.c | 3 -- drivers/scsi/sr.c | 5 +--- drivers/scsi/st.c | 2 +- include/scsi/scsi_ioctl.h | 1 - 7 files changed, 22 insertions(+), 53 deletions(-) diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index e89f226cae5c..87df8cd880e0 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -877,8 +877,6 @@ static long ch_ioctl(struct file *file, } default: - if (in_compat_syscall()) - return scsi_compat_ioctl(ch->device, cmd, argp); return scsi_ioctl(ch->device, cmd, argp); } diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 0d13610cd6bf..7b2e3cc85e66 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -189,8 +189,17 @@ static int scsi_ioctl_get_pci(struct scsi_device *sdev, void __user *arg) ? -EFAULT: 0; } - -static int scsi_ioctl_common(struct scsi_device *sdev, int cmd, void __user *arg) +/** + * scsi_ioctl - Dispatch ioctl to scsi device + * @sdev: scsi device receiving ioctl + * @cmd: which ioctl is it + * @arg: data associated with ioctl + * + * Description: The scsi_ioctl() function differs from most ioctls in that it + * does not take a major/minor number as the dev field. Rather, it takes + * a pointer to a &struct scsi_device. + */ +int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) { char scsi_cmd[MAX_COMMAND_SIZE]; struct scsi_sense_hdr sense_hdr; @@ -258,48 +267,19 @@ static int scsi_ioctl_common(struct scsi_device *sdev, int cmd, void __user *arg case SG_SCSI_RESET: return scsi_ioctl_reset(sdev, arg); } - return -ENOIOCTLCMD; -} - -/** - * scsi_ioctl - Dispatch ioctl to scsi device - * @sdev: scsi device receiving ioctl - * @cmd: which ioctl is it - * @arg: data associated with ioctl - * - * Description: The scsi_ioctl() function differs from most ioctls in that it - * does not take a major/minor number as the dev field. Rather, it takes - * a pointer to a &struct scsi_device. - */ -int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) -{ - int ret = scsi_ioctl_common(sdev, cmd, arg); - - if (ret != -ENOIOCTLCMD) - return ret; - - if (sdev->host->hostt->ioctl) - return sdev->host->hostt->ioctl(sdev, cmd, arg); - - return -EINVAL; -} -EXPORT_SYMBOL(scsi_ioctl); #ifdef CONFIG_COMPAT -int scsi_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) -{ - int ret = scsi_ioctl_common(sdev, cmd, arg); - - if (ret != -ENOIOCTLCMD) - return ret; - - if (sdev->host->hostt->compat_ioctl) + if (in_compat_syscall()) { + if (!sdev->host->hostt->compat_ioctl) + return -EINVAL; return sdev->host->hostt->compat_ioctl(sdev, cmd, arg); - - return ret; -} -EXPORT_SYMBOL(scsi_compat_ioctl); + } #endif + if (!sdev->host->hostt->ioctl) + return -EINVAL; + return sdev->host->hostt->ioctl(sdev, cmd, arg); +} +EXPORT_SYMBOL(scsi_ioctl); /* * We can process a reset even when a device isn't fully operable. diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index f470daf76155..1c9dbdaaef22 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1591,8 +1591,6 @@ static int sd_ioctl(struct block_device *bdev, fmode_t mode, return error; } - if (in_compat_syscall()) - return scsi_compat_ioctl(sdp, cmd, p); return scsi_ioctl(sdp, cmd, p); } diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 0a6655bad5a4..c3562c2d0dca 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1165,9 +1165,6 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p); if (ret != -ENOIOCTLCMD) return ret; - - if (in_compat_syscall()) - return scsi_compat_ioctl(sdp->device, cmd_in, p); return scsi_ioctl(sdp->device, cmd_in, p); } diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index b34f06924659..c5e163a659d2 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -584,10 +584,7 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, goto put; } - if (in_compat_syscall()) - ret = scsi_compat_ioctl(sdev, cmd, argp); - else - ret = scsi_ioctl(sdev, cmd, argp); + ret = scsi_ioctl(sdev, cmd, argp); put: scsi_autopm_put_device(sdev); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index c6f14540ae03..c3fee73e018e 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3886,7 +3886,7 @@ static long st_compat_ioctl(struct file *file, unsigned int cmd_in, unsigned lon if (ret != -ENOTTY) return ret; - return scsi_compat_ioctl(STp->device, cmd_in, p); + return scsi_ioctl(STp->device, cmd_in, p); } #endif diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h index b465799f4d2d..cdb3ba3451e7 100644 --- a/include/scsi/scsi_ioctl.h +++ b/include/scsi/scsi_ioctl.h @@ -44,7 +44,6 @@ typedef struct scsi_fctargaddress { int scsi_ioctl_block_when_processing_errors(struct scsi_device *sdev, int cmd, bool ndelay); extern int scsi_ioctl(struct scsi_device *, int, void __user *); -extern int scsi_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg); #endif /* __KERNEL__ */ #endif /* _SCSI_IOCTL_H */