LU-9859 libcfs: move remaining code from linux-module.c to module.c

[fs/lustre-release.git] / libcfs / libcfs / linux / linux-module.c

diff --git a/libcfs/libcfs/linux/linux-module.c b/libcfs/libcfs/linux/linux-module.c
deleted file mode 100644 (file)
index 6a8c3c4..0000000
--- a/libcfs/libcfs/linux/linux-module.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2017, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/uaccess.h>
-#include <libcfs/libcfs.h>
-
-static inline size_t libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
-{
-       size_t len = sizeof(*data);
-
-       len += (data->ioc_inllen1 + 7) & ~7;
-       len += (data->ioc_inllen2 + 7) & ~7;
-       return len;
-}
-
-static bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
-{
-       if (data->ioc_hdr.ioc_len > BIT(30))
-               return true;
-
-       if (data->ioc_inllen1 > BIT(30))
-               return true;
-
-       if (data->ioc_inllen2 > BIT(30))
-               return true;
-
-       if (data->ioc_inlbuf1 && !data->ioc_inllen1)
-               return true;
-
-       if (data->ioc_inlbuf2 && !data->ioc_inllen2)
-               return true;
-
-       if (data->ioc_pbuf1 && !data->ioc_plen1)
-               return true;
-
-       if (data->ioc_pbuf2 && !data->ioc_plen2)
-               return true;
-
-       if (data->ioc_plen1 && !data->ioc_pbuf1)
-               return true;
-
-       if (data->ioc_plen2 && !data->ioc_pbuf2)
-               return true;
-
-       if (libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len)
-               return true;
-
-       if (data->ioc_inllen1 &&
-           data->ioc_bulk[((data->ioc_inllen1 + 7) & ~7) +
-                            data->ioc_inllen2 - 1] != '\0')
-               return true;
-
-       return false;
-}
-
-int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data)
-{
-       ENTRY;
-
-       if (libcfs_ioctl_is_invalid(data)) {
-               CERROR("libcfs ioctl: parameter not correctly formatted\n");
-               RETURN(-EINVAL);
-       }
-
-       if (data->ioc_inllen1 != 0)
-               data->ioc_inlbuf1 = &data->ioc_bulk[0];
-
-       if (data->ioc_inllen2 != 0)
-               data->ioc_inlbuf2 = &data->ioc_bulk[0] +
-                                   cfs_size_round(data->ioc_inllen1);
-
-       RETURN(0);
-}
-
-int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
-                        struct libcfs_ioctl_hdr __user *uhdr)
-{
-       struct libcfs_ioctl_hdr   hdr;
-       int err;
-       ENTRY;
-
-       if (copy_from_user(&hdr, uhdr, sizeof(hdr)))
-               RETURN(-EFAULT);
-
-       if (hdr.ioc_version != LIBCFS_IOCTL_VERSION &&
-           hdr.ioc_version != LIBCFS_IOCTL_VERSION2) {
-               CERROR("libcfs ioctl: version mismatch expected %#x, got %#x\n",
-                      LIBCFS_IOCTL_VERSION, hdr.ioc_version);
-               RETURN(-EINVAL);
-       }
-
-       if (hdr.ioc_len < sizeof(struct libcfs_ioctl_hdr)) {
-               CERROR("libcfs ioctl: user buffer too small for ioctl\n");
-               RETURN(-EINVAL);
-       }
-
-       if (hdr.ioc_len > LIBCFS_IOC_DATA_MAX) {
-               CERROR("libcfs ioctl: user buffer is too large %d/%d\n",
-                      hdr.ioc_len, LIBCFS_IOC_DATA_MAX);
-               RETURN(-EINVAL);
-       }
-
-       LIBCFS_ALLOC(*hdr_pp, hdr.ioc_len);
-       if (*hdr_pp == NULL)
-               RETURN(-ENOMEM);
-
-       if (copy_from_user(*hdr_pp, uhdr, hdr.ioc_len))
-               GOTO(free, err = -EFAULT);
-
-       if ((*hdr_pp)->ioc_version != hdr.ioc_version ||
-               (*hdr_pp)->ioc_len != hdr.ioc_len) {
-               GOTO(free, err = -EINVAL);
-       }
-
-       RETURN(0);
-
-free:
-       LIBCFS_FREE(*hdr_pp, hdr.ioc_len);
-       RETURN(err);
-}