diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/bsearch.c | 5 | ||||
| -rw-r--r-- | lib/btree.c | 4 | ||||
| -rw-r--r-- | lib/digsig.c | 5 | ||||
| -rw-r--r-- | lib/earlycpio.c | 10 | ||||
| -rw-r--r-- | lib/find_bit_benchmark.c | 10 | ||||
| -rw-r--r-- | lib/genalloc.c | 51 | ||||
| -rw-r--r-- | lib/llist.c | 14 | ||||
| -rw-r--r-- | lib/lockref.c | 3 | ||||
| -rw-r--r-- | lib/raid6/recov_avx2.c | 6 | ||||
| -rw-r--r-- | lib/raid6/recov_avx512.c | 7 | ||||
| -rw-r--r-- | lib/raid6/recov_neon.c | 6 | ||||
| -rw-r--r-- | lib/raid6/recov_neon_inner.c | 6 | ||||
| -rw-r--r-- | lib/raid6/recov_ssse3.c | 6 | ||||
| -rw-r--r-- | lib/ratelimit.c | 3 | ||||
| -rw-r--r-- | lib/sbitmap.c | 13 | ||||
| -rw-r--r-- | lib/show_mem.c | 2 | ||||
| -rw-r--r-- | lib/test_bpf.c | 10 | ||||
| -rw-r--r-- | lib/test_firmware.c | 14 | ||||
| -rw-r--r-- | lib/test_static_key_base.c | 10 | ||||
| -rw-r--r-- | lib/test_static_keys.c | 10 | ||||
| -rw-r--r-- | lib/test_user_copy.c | 10 |
21 files changed, 53 insertions, 152 deletions
diff --git a/lib/bsearch.c b/lib/bsearch.c index 82512fe7b33c..8baa83968162 100644 --- a/lib/bsearch.c +++ b/lib/bsearch.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * A generic implementation of binary search for the Linux kernel * * Copyright (C) 2008-2009 Ksplice, Inc. * Author: Tim Abbott <tabbott@ksplice.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; version 2. */ #include <linux/export.h> diff --git a/lib/btree.c b/lib/btree.c index 590facba2c50..b4cf08a5c267 100644 --- a/lib/btree.c +++ b/lib/btree.c @@ -1,12 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * lib/btree.c - Simple In-memory B+Tree * - * As should be obvious for Linux kernel code, license is GPLv2 - * * Copyright (c) 2007-2008 Joern Engel <joern@purestorage.com> * Bits and pieces stolen from Peter Zijlstra's code, which is * Copyright 2007, Red Hat Inc. Peter Zijlstra - * GPLv2 * * see http://programming.kicks-ass.net/kernel-patches/vma_lookup/btree.patch * diff --git a/lib/digsig.c b/lib/digsig.c index 3b0a579bdcdf..3cf89c775ab2 100644 --- a/lib/digsig.c +++ b/lib/digsig.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2011 Nokia Corporation * Copyright (C) 2011 Intel Corporation @@ -6,10 +7,6 @@ * Dmitry Kasatkin <dmitry.kasatkin@nokia.com> * <dmitry.kasatkin@intel.com> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, version 2 of the License. - * * File: sign.c * implements signature (RSA) verification * pkcs decoding is based on LibTomCrypt code diff --git a/lib/earlycpio.c b/lib/earlycpio.c index db283ba4d2c1..c001e084829e 100644 --- a/lib/earlycpio.c +++ b/lib/earlycpio.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* ----------------------------------------------------------------------- * * * Copyright 2012 Intel Corporation; author H. Peter Anvin * - * This file is part of the Linux kernel, and is made available - * under the terms of the GNU General Public License version 2, as - * published by the Free Software Foundation. - * - * This program is distributed in the hope 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 for more details. - * * ----------------------------------------------------------------------- */ /* diff --git a/lib/find_bit_benchmark.c b/lib/find_bit_benchmark.c index f0e394dd2beb..5637c5711db9 100644 --- a/lib/find_bit_benchmark.c +++ b/lib/find_bit_benchmark.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Test for find_*_bit functions. * * Copyright (c) 2017 Cavium. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License 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 for more details. */ /* diff --git a/lib/genalloc.c b/lib/genalloc.c index 7e85d1e37a6e..770c769d7cb7 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -168,20 +168,21 @@ struct gen_pool *gen_pool_create(int min_alloc_order, int nid) EXPORT_SYMBOL(gen_pool_create); /** - * gen_pool_add_virt - add a new chunk of special memory to the pool + * gen_pool_add_owner- add a new chunk of special memory to the pool * @pool: pool to add new memory chunk to * @virt: virtual starting address of memory chunk to add to pool * @phys: physical starting address of memory chunk to add to pool * @size: size in bytes of the memory chunk to add to pool * @nid: node id of the node the chunk structure and bitmap should be * allocated on, or -1 + * @owner: private data the publisher would like to recall at alloc time * * Add a new chunk of special memory to the specified pool. * * Returns 0 on success or a -ve errno on failure. */ -int gen_pool_add_virt(struct gen_pool *pool, unsigned long virt, phys_addr_t phys, - size_t size, int nid) +int gen_pool_add_owner(struct gen_pool *pool, unsigned long virt, phys_addr_t phys, + size_t size, int nid, void *owner) { struct gen_pool_chunk *chunk; int nbits = size >> pool->min_alloc_order; @@ -195,6 +196,7 @@ int gen_pool_add_virt(struct gen_pool *pool, unsigned long virt, phys_addr_t phy chunk->phys_addr = phys; chunk->start_addr = virt; chunk->end_addr = virt + size - 1; + chunk->owner = owner; atomic_long_set(&chunk->avail, size); spin_lock(&pool->lock); @@ -203,7 +205,7 @@ int gen_pool_add_virt(struct gen_pool *pool, unsigned long virt, phys_addr_t phy return 0; } -EXPORT_SYMBOL(gen_pool_add_virt); +EXPORT_SYMBOL(gen_pool_add_owner); /** * gen_pool_virt_to_phys - return the physical address of memory @@ -260,35 +262,20 @@ void gen_pool_destroy(struct gen_pool *pool) EXPORT_SYMBOL(gen_pool_destroy); /** - * gen_pool_alloc - allocate special memory from the pool - * @pool: pool to allocate from - * @size: number of bytes to allocate from the pool - * - * Allocate the requested number of bytes from the specified pool. - * Uses the pool allocation function (with first-fit algorithm by default). - * Can not be used in NMI handler on architectures without - * NMI-safe cmpxchg implementation. - */ -unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size) -{ - return gen_pool_alloc_algo(pool, size, pool->algo, pool->data); -} -EXPORT_SYMBOL(gen_pool_alloc); - -/** - * gen_pool_alloc_algo - allocate special memory from the pool + * gen_pool_alloc_algo_owner - allocate special memory from the pool * @pool: pool to allocate from * @size: number of bytes to allocate from the pool * @algo: algorithm passed from caller * @data: data passed to algorithm + * @owner: optionally retrieve the chunk owner * * Allocate the requested number of bytes from the specified pool. * Uses the pool allocation function (with first-fit algorithm by default). * Can not be used in NMI handler on architectures without * NMI-safe cmpxchg implementation. */ -unsigned long gen_pool_alloc_algo(struct gen_pool *pool, size_t size, - genpool_algo_t algo, void *data) +unsigned long gen_pool_alloc_algo_owner(struct gen_pool *pool, size_t size, + genpool_algo_t algo, void *data, void **owner) { struct gen_pool_chunk *chunk; unsigned long addr = 0; @@ -299,6 +286,9 @@ unsigned long gen_pool_alloc_algo(struct gen_pool *pool, size_t size, BUG_ON(in_nmi()); #endif + if (owner) + *owner = NULL; + if (size == 0) return 0; @@ -326,12 +316,14 @@ retry: addr = chunk->start_addr + ((unsigned long)start_bit << order); size = nbits << order; atomic_long_sub(size, &chunk->avail); + if (owner) + *owner = chunk->owner; break; } rcu_read_unlock(); return addr; } -EXPORT_SYMBOL(gen_pool_alloc_algo); +EXPORT_SYMBOL(gen_pool_alloc_algo_owner); /** * gen_pool_dma_alloc - allocate special memory from the pool for DMA usage @@ -367,12 +359,14 @@ EXPORT_SYMBOL(gen_pool_dma_alloc); * @pool: pool to free to * @addr: starting address of memory to free back to pool * @size: size in bytes of memory to free + * @owner: private data stashed at gen_pool_add() time * * Free previously allocated special memory back to the specified * pool. Can not be used in NMI handler on architectures without * NMI-safe cmpxchg implementation. */ -void gen_pool_free(struct gen_pool *pool, unsigned long addr, size_t size) +void gen_pool_free_owner(struct gen_pool *pool, unsigned long addr, size_t size, + void **owner) { struct gen_pool_chunk *chunk; int order = pool->min_alloc_order; @@ -382,6 +376,9 @@ void gen_pool_free(struct gen_pool *pool, unsigned long addr, size_t size) BUG_ON(in_nmi()); #endif + if (owner) + *owner = NULL; + nbits = (size + (1UL << order) - 1) >> order; rcu_read_lock(); list_for_each_entry_rcu(chunk, &pool->chunks, next_chunk) { @@ -392,6 +389,8 @@ void gen_pool_free(struct gen_pool *pool, unsigned long addr, size_t size) BUG_ON(remain); size = nbits << order; atomic_long_add(size, &chunk->avail); + if (owner) + *owner = chunk->owner; rcu_read_unlock(); return; } @@ -399,7 +398,7 @@ void gen_pool_free(struct gen_pool *pool, unsigned long addr, size_t size) rcu_read_unlock(); BUG(); } -EXPORT_SYMBOL(gen_pool_free); +EXPORT_SYMBOL(gen_pool_free_owner); /** * gen_pool_for_each_chunk - call func for every chunk of generic memory pool diff --git a/lib/llist.c b/lib/llist.c index 7062e931a7bb..611ce4881a87 100644 --- a/lib/llist.c +++ b/lib/llist.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Lock-less NULL terminated single linked list * @@ -8,19 +9,6 @@ * * Copyright 2010,2011 Intel Corp. * Author: Huang Ying <ying.huang@intel.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 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 for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> #include <linux/export.h> diff --git a/lib/lockref.c b/lib/lockref.c index 3d468b53d4c9..5b34bbd3eba8 100644 --- a/lib/lockref.c +++ b/lib/lockref.c @@ -9,6 +9,7 @@ * failure case. */ #define CMPXCHG_LOOP(CODE, SUCCESS) do { \ + int retry = 100; \ struct lockref old; \ BUILD_BUG_ON(sizeof(old) != 8); \ old.lock_count = READ_ONCE(lockref->lock_count); \ @@ -21,6 +22,8 @@ if (likely(old.lock_count == prev.lock_count)) { \ SUCCESS; \ } \ + if (!--retry) \ + break; \ cpu_relax(); \ } \ } while (0) diff --git a/lib/raid6/recov_avx2.c b/lib/raid6/recov_avx2.c index 53fe3d7bdfb3..7a3b5e7f66ee 100644 --- a/lib/raid6/recov_avx2.c +++ b/lib/raid6/recov_avx2.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Intel Corporation * Author: Jim Kukunas <james.t.kukunas@linux.intel.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. */ #ifdef CONFIG_AS_AVX2 diff --git a/lib/raid6/recov_avx512.c b/lib/raid6/recov_avx512.c index 625aafa33b61..fd9e15bf3f30 100644 --- a/lib/raid6/recov_avx512.c +++ b/lib/raid6/recov_avx512.c @@ -1,14 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2016 Intel Corporation * * Author: Gayatri Kammela <gayatri.kammela@intel.com> * Author: Megha Dey <megha.dey@linux.intel.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. - * */ #ifdef CONFIG_AS_AVX512 diff --git a/lib/raid6/recov_neon.c b/lib/raid6/recov_neon.c index eeb5c4065b92..d6fba8bf8c0a 100644 --- a/lib/raid6/recov_neon.c +++ b/lib/raid6/recov_neon.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Intel Corporation * Copyright (C) 2017 Linaro Ltd. <ard.biesheuvel@linaro.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. */ #include <linux/raid/pq.h> diff --git a/lib/raid6/recov_neon_inner.c b/lib/raid6/recov_neon_inner.c index f13c07f82297..90eb80d43790 100644 --- a/lib/raid6/recov_neon_inner.c +++ b/lib/raid6/recov_neon_inner.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Intel Corporation * Copyright (C) 2017 Linaro Ltd. <ard.biesheuvel@linaro.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. */ #include <arm_neon.h> diff --git a/lib/raid6/recov_ssse3.c b/lib/raid6/recov_ssse3.c index cda33e56a5e3..1de97d2405d0 100644 --- a/lib/raid6/recov_ssse3.c +++ b/lib/raid6/recov_ssse3.c @@ -1,10 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Intel Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. */ #ifdef CONFIG_AS_SSSE3 diff --git a/lib/ratelimit.c b/lib/ratelimit.c index d01f47135239..e01a93f46f83 100644 --- a/lib/ratelimit.c +++ b/lib/ratelimit.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ratelimit.c - Do something with rate limit. * @@ -5,8 +6,6 @@ * * 2008-05-01 rewrite the function and use a ratelimit_state data struct as * parameter. Now every user can use their own standalone ratelimit_state. - * - * This file is released under the GPLv2. */ #include <linux/ratelimit.h> diff --git a/lib/sbitmap.c b/lib/sbitmap.c index 4a7fc4915dfc..54f57cd117c6 100644 --- a/lib/sbitmap.c +++ b/lib/sbitmap.c @@ -1,18 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2016 Facebook * Copyright (C) 2013-2014 Jens Axboe - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License v2 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 for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <linux/sched.h> diff --git a/lib/show_mem.c b/lib/show_mem.c index 6a042f53e7bb..5c86ef4c899f 100644 --- a/lib/show_mem.c +++ b/lib/show_mem.c @@ -1,8 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Generic show_mem() implementation * * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de> - * All code subject to the GPL version 2. */ #include <linux/mm.h> diff --git a/lib/test_bpf.c b/lib/test_bpf.c index 0845f635f404..c41705835cba 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -1,16 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Testsuite for BPF interpreter and BPF JIT compiler * * Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License 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 for more details. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/lib/test_firmware.c b/lib/test_firmware.c index 787c146eb485..83ea6c4e623c 100644 --- a/lib/test_firmware.c +++ b/lib/test_firmware.c @@ -224,30 +224,30 @@ static ssize_t config_show(struct device *dev, mutex_lock(&test_fw_mutex); - len += snprintf(buf, PAGE_SIZE, + len += scnprintf(buf, PAGE_SIZE - len, "Custom trigger configuration for: %s\n", dev_name(dev)); if (test_fw_config->name) - len += snprintf(buf+len, PAGE_SIZE, + len += scnprintf(buf+len, PAGE_SIZE - len, "name:\t%s\n", test_fw_config->name); else - len += snprintf(buf+len, PAGE_SIZE, + len += scnprintf(buf+len, PAGE_SIZE - len, "name:\tEMTPY\n"); - len += snprintf(buf+len, PAGE_SIZE, + len += scnprintf(buf+len, PAGE_SIZE - len, "num_requests:\t%u\n", test_fw_config->num_requests); - len += snprintf(buf+len, PAGE_SIZE, + len += scnprintf(buf+len, PAGE_SIZE - len, "send_uevent:\t\t%s\n", test_fw_config->send_uevent ? "FW_ACTION_HOTPLUG" : "FW_ACTION_NOHOTPLUG"); - len += snprintf(buf+len, PAGE_SIZE, + len += scnprintf(buf+len, PAGE_SIZE - len, "sync_direct:\t\t%s\n", test_fw_config->sync_direct ? "true" : "false"); - len += snprintf(buf+len, PAGE_SIZE, + len += scnprintf(buf+len, PAGE_SIZE - len, "read_fw_idx:\t%u\n", test_fw_config->read_fw_idx); mutex_unlock(&test_fw_mutex); diff --git a/lib/test_static_key_base.c b/lib/test_static_key_base.c index 729447aea02f..5089a2e2bdd8 100644 --- a/lib/test_static_key_base.c +++ b/lib/test_static_key_base.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Kernel module for testing static keys. * @@ -5,15 +6,6 @@ * * Authors: * Jason Baron <jbaron@akamai.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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 for more details. */ #include <linux/module.h> diff --git a/lib/test_static_keys.c b/lib/test_static_keys.c index 915d75df2086..42daa74be029 100644 --- a/lib/test_static_keys.c +++ b/lib/test_static_keys.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Kernel module for testing static keys. * @@ -5,15 +6,6 @@ * * Authors: * Jason Baron <jbaron@akamai.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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 for more details. */ #include <linux/module.h> diff --git a/lib/test_user_copy.c b/lib/test_user_copy.c index e161f0498f42..67bcd5dfd847 100644 --- a/lib/test_user_copy.c +++ b/lib/test_user_copy.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Kernel module for testing copy_to/from_user infrastructure. * @@ -5,15 +6,6 @@ * * Authors: * Kees Cook <keescook@chromium.org> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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 for more details. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |