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| 1 | +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB |
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| 1 | 2 | /* |
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| 2 | 3 | * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. |
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| 3 | 4 | * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved. |
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| 4 | | - * |
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| 5 | | - * This software is available to you under a choice of one of two |
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| 6 | | - * licenses. You may choose to be licensed under the terms of the GNU |
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| 7 | | - * General Public License (GPL) Version 2, available from the file |
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| 8 | | - * COPYING in the main directory of this source tree, or the |
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| 9 | | - * OpenIB.org BSD license below: |
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| 10 | | - * |
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| 11 | | - * Redistribution and use in source and binary forms, with or |
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| 12 | | - * without modification, are permitted provided that the following |
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| 13 | | - * conditions are met: |
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| 14 | | - * |
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| 15 | | - * - Redistributions of source code must retain the above |
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| 16 | | - * copyright notice, this list of conditions and the following |
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| 17 | | - * disclaimer. |
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| 18 | | - * |
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| 19 | | - * - Redistributions in binary form must retailuce the above |
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| 20 | | - * copyright notice, this list of conditions and the following |
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| 21 | | - * disclaimer in the documentation and/or other materials |
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| 22 | | - * provided with the distribution. |
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| 23 | | - * |
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| 24 | | - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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| 25 | | - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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| 26 | | - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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| 27 | | - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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| 28 | | - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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| 29 | | - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 30 | | - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 31 | | - * SOFTWARE. |
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| 32 | 5 | */ |
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| 33 | 6 | |
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| 34 | 7 | #include <linux/vmalloc.h> |
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| .. | .. |
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| 36 | 9 | #include "rxe_loc.h" |
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| 37 | 10 | #include "rxe_queue.h" |
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| 38 | 11 | |
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| 39 | | -int do_mmap_info(struct rxe_dev *rxe, |
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| 40 | | - struct mminfo __user *outbuf, |
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| 41 | | - struct ib_ucontext *context, |
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| 42 | | - struct rxe_queue_buf *buf, |
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| 43 | | - size_t buf_size, |
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| 44 | | - struct rxe_mmap_info **ip_p) |
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| 12 | +int do_mmap_info(struct rxe_dev *rxe, struct mminfo __user *outbuf, |
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| 13 | + struct ib_udata *udata, struct rxe_queue_buf *buf, |
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| 14 | + size_t buf_size, struct rxe_mmap_info **ip_p) |
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| 45 | 15 | { |
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| 46 | 16 | int err; |
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| 47 | 17 | struct rxe_mmap_info *ip = NULL; |
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| 48 | 18 | |
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| 49 | 19 | if (outbuf) { |
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| 50 | | - ip = rxe_create_mmap_info(rxe, buf_size, context, buf); |
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| 51 | | - if (!ip) |
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| 20 | + ip = rxe_create_mmap_info(rxe, buf_size, udata, buf); |
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| 21 | + if (IS_ERR(ip)) { |
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| 22 | + err = PTR_ERR(ip); |
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| 52 | 23 | goto err1; |
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| 24 | + } |
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| 53 | 25 | |
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| 54 | | - err = copy_to_user(outbuf, &ip->info, sizeof(ip->info)); |
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| 55 | | - if (err) |
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| 26 | + if (copy_to_user(outbuf, &ip->info, sizeof(ip->info))) { |
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| 27 | + err = -EFAULT; |
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| 56 | 28 | goto err2; |
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| 29 | + } |
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| 57 | 30 | |
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| 58 | 31 | spin_lock_bh(&rxe->pending_lock); |
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| 59 | 32 | list_add(&ip->pending_mmaps, &rxe->pending_mmaps); |
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| .. | .. |
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| 67 | 40 | err2: |
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| 68 | 41 | kfree(ip); |
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| 69 | 42 | err1: |
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| 70 | | - return -EINVAL; |
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| 43 | + return err; |
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| 71 | 44 | } |
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| 72 | 45 | |
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| 73 | 46 | inline void rxe_queue_reset(struct rxe_queue *q) |
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| .. | .. |
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| 153 | 126 | return 0; |
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| 154 | 127 | } |
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| 155 | 128 | |
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| 156 | | -int rxe_queue_resize(struct rxe_queue *q, |
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| 157 | | - unsigned int *num_elem_p, |
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| 158 | | - unsigned int elem_size, |
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| 159 | | - struct ib_ucontext *context, |
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| 160 | | - struct mminfo __user *outbuf, |
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| 161 | | - spinlock_t *producer_lock, |
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| 129 | +int rxe_queue_resize(struct rxe_queue *q, unsigned int *num_elem_p, |
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| 130 | + unsigned int elem_size, struct ib_udata *udata, |
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| 131 | + struct mminfo __user *outbuf, spinlock_t *producer_lock, |
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| 162 | 132 | spinlock_t *consumer_lock) |
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| 163 | 133 | { |
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| 164 | 134 | struct rxe_queue *new_q; |
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| .. | .. |
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| 170 | 140 | if (!new_q) |
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| 171 | 141 | return -ENOMEM; |
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| 172 | 142 | |
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| 173 | | - err = do_mmap_info(new_q->rxe, outbuf, context, new_q->buf, |
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| 143 | + err = do_mmap_info(new_q->rxe, outbuf, udata, new_q->buf, |
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| 174 | 144 | new_q->buf_size, &new_q->ip); |
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| 175 | 145 | if (err) { |
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| 176 | 146 | vfree(new_q->buf); |
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