diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/bitmap.c | 4 | ||||
-rw-r--r-- | lib/clz_ctz.c | 4 | ||||
-rw-r--r-- | lib/cmdline.c | 5 | ||||
-rw-r--r-- | lib/cpu_rmap.c | 5 | ||||
-rw-r--r-- | lib/crc-ccitt.c | 4 | ||||
-rw-r--r-- | lib/crc-itu-t.c | 4 | ||||
-rw-r--r-- | lib/crc-t10dif.c | 4 | ||||
-rw-r--r-- | lib/crc16.c | 4 | ||||
-rw-r--r-- | lib/crc4.c | 4 | ||||
-rw-r--r-- | lib/crc7.c | 4 | ||||
-rw-r--r-- | lib/decompress_unlz4.c | 5 | ||||
-rw-r--r-- | lib/genalloc.c | 55 | ||||
-rw-r--r-- | lib/hexdump.c | 6 | ||||
-rw-r--r-- | lib/iomap_copy.c | 14 | ||||
-rw-r--r-- | lib/jedec_ddr_data.c | 5 | ||||
-rw-r--r-- | lib/klist.c | 3 | ||||
-rw-r--r-- | lib/parser.c | 4 | ||||
-rw-r--r-- | lib/raid6/neon.c | 5 | ||||
-rw-r--r-- | lib/rhashtable.c | 5 | ||||
-rw-r--r-- | lib/scatterlist.c | 4 | ||||
-rw-r--r-- | lib/sg_split.c | 4 | ||||
-rw-r--r-- | lib/test_kasan.c | 6 | ||||
-rw-r--r-- | lib/test_rhashtable.c | 5 | ||||
-rw-r--r-- | lib/test_stackinit.c | 21 | ||||
-rw-r--r-- | lib/ubsan.c | 6 |
25 files changed, 64 insertions, 126 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index f235434df87b..bbe2589e8497 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -1,9 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * lib/bitmap.c * Helper functions for bitmap.h. - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/export.h> #include <linux/thread_info.h> diff --git a/lib/clz_ctz.c b/lib/clz_ctz.c index 2e11e48446ab..0d3a686b5ba2 100644 --- a/lib/clz_ctz.c +++ b/lib/clz_ctz.c @@ -1,11 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * lib/clz_ctz.c * * Copyright (C) 2013 Chanho Min <chanho.min@lge.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. * The functions in this file aren't called directly, but are required by * GCC builtins such as __builtin_ctz, and therefore they can't be removed * despite appearing unreferenced in kernel source. diff --git a/lib/cmdline.c b/lib/cmdline.c index dc59d6216318..fbb9981a04a4 100644 --- a/lib/cmdline.c +++ b/lib/cmdline.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/lib/cmdline.c * Helper functions generally used for parsing kernel command line @@ -5,11 +6,7 @@ * * Code and copyrights come from init/main.c and arch/i386/kernel/setup.c. * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. - * * GNU Indent formatting options for this file: -kr -i8 -npsl -pcs - * */ #include <linux/export.h> diff --git a/lib/cpu_rmap.c b/lib/cpu_rmap.c index f610b2a10b3e..075f3788bbe4 100644 --- a/lib/cpu_rmap.c +++ b/lib/cpu_rmap.c @@ -1,10 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * cpu_rmap.c: CPU affinity reverse-map support * Copyright 2011 Solarflare Communications Inc. - * - * 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, incorporated herein by reference. */ #include <linux/cpu_rmap.h> diff --git a/lib/crc-ccitt.c b/lib/crc-ccitt.c index d873b34039ff..d1a7d29d2ac9 100644 --- a/lib/crc-ccitt.c +++ b/lib/crc-ccitt.c @@ -1,8 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/lib/crc-ccitt.c - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/types.h> diff --git a/lib/crc-itu-t.c b/lib/crc-itu-t.c index b3219d0abfb4..1974b355c148 100644 --- a/lib/crc-itu-t.c +++ b/lib/crc-itu-t.c @@ -1,8 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * crc-itu-t.c - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/types.h> diff --git a/lib/crc-t10dif.c b/lib/crc-t10dif.c index e89ebfdbb0fc..8cc01a603416 100644 --- a/lib/crc-t10dif.c +++ b/lib/crc-t10dif.c @@ -1,11 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * T10 Data Integrity Field CRC16 calculation * * Copyright (c) 2007 Oracle Corporation. All rights reserved. * Written by Martin K. Petersen <martin.petersen@oracle.com> - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/types.h> diff --git a/lib/crc16.c b/lib/crc16.c index 8737b084d1f9..5c3a803c01e0 100644 --- a/lib/crc16.c +++ b/lib/crc16.c @@ -1,8 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * crc16.c - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/types.h> diff --git a/lib/crc4.c b/lib/crc4.c index 164ed9444cd3..e7e1779c67d9 100644 --- a/lib/crc4.c +++ b/lib/crc4.c @@ -1,8 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * crc4.c - simple crc-4 calculations. - * - * This source code is licensed under the GNU General Public License, Version - * 2. See the file COPYING for more details. */ #include <linux/crc4.h> diff --git a/lib/crc7.c b/lib/crc7.c index bf6255e23919..6a848d73e804 100644 --- a/lib/crc7.c +++ b/lib/crc7.c @@ -1,8 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * crc7.c - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/types.h> diff --git a/lib/decompress_unlz4.c b/lib/decompress_unlz4.c index 1b0baf3008ea..c0cfcfd486be 100644 --- a/lib/decompress_unlz4.c +++ b/lib/decompress_unlz4.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Wrapper for decompressing LZ4-compressed kernel, initramfs, and initrd * * Copyright (C) 2013, LG Electronics, Kyungsik Lee <kyungsik.lee@lge.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. */ #ifdef STATIC diff --git a/lib/genalloc.c b/lib/genalloc.c index 7e85d1e37a6e..5257f74fccf3 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Basic general purpose allocator for managing special purpose * memory, for example, memory that is not managed by the regular @@ -23,9 +24,6 @@ * CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG. * * Copyright 2005 (C) Jes Sorensen <jes@trained-monkey.org> - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/slab.h> @@ -168,20 +166,21 @@ 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 +194,7 @@ 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 +203,7 @@ 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 +260,20 @@ 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 +284,9 @@ 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 +314,14 @@ 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 +357,14 @@ 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 +374,9 @@ 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 +387,8 @@ 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 +396,7 @@ 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/hexdump.c b/lib/hexdump.c index 81b70ed37209..b1d55b669ae2 100644 --- a/lib/hexdump.c +++ b/lib/hexdump.c @@ -1,10 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * lib/hexdump.c - * - * 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. See README and COPYING for - * more details. */ #include <linux/types.h> diff --git a/lib/iomap_copy.c b/lib/iomap_copy.c index b8f1d6cbb200..5de7c04e05ef 100644 --- a/lib/iomap_copy.c +++ b/lib/iomap_copy.c @@ -1,18 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2006 PathScale, Inc. All Rights Reserved. - * - * This file 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. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #include <linux/export.h> diff --git a/lib/jedec_ddr_data.c b/lib/jedec_ddr_data.c index 6d2cbf1d567f..d0b312e28d36 100644 --- a/lib/jedec_ddr_data.c +++ b/lib/jedec_ddr_data.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * DDR addressing details and AC timing parameters from JEDEC specs * * Copyright (C) 2012 Texas Instruments, Inc. * * Aneesh V <aneesh@ti.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. */ #include <memory/jedec_ddr.h> diff --git a/lib/klist.c b/lib/klist.c index f6b547812fe3..332a4fbf18ff 100644 --- a/lib/klist.c +++ b/lib/klist.c @@ -1,10 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * klist.c - Routines for manipulating klists. * * Copyright (C) 2005 Patrick Mochel * - * This file is released under the GPL v2. - * * This klist interface provides a couple of structures that wrap around * struct list_head to provide explicit list "head" (struct klist) and list * "node" (struct klist_node) objects. For struct klist, a spinlock is diff --git a/lib/parser.c b/lib/parser.c index dd70e5e6c9e2..f5b3e5d7a7f9 100644 --- a/lib/parser.c +++ b/lib/parser.c @@ -1,8 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * lib/parser.c - simple parser for mount, etc. options. - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/ctype.h> diff --git a/lib/raid6/neon.c b/lib/raid6/neon.c index 7076ef1ba3dd..0a2e76035ea9 100644 --- a/lib/raid6/neon.c +++ b/lib/raid6/neon.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/lib/raid6/neon.c - RAID6 syndrome calculation using ARM NEON intrinsics * * Copyright (C) 2013 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 version 2 as - * published by the Free Software Foundation. */ #include <linux/raid/pq.h> diff --git a/lib/rhashtable.c b/lib/rhashtable.c index 935ec80f213f..bdb7e4cadf05 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Resizable, Scalable, Concurrent Hash Table * @@ -8,10 +9,6 @@ * Code partially derived from nft_hash * Rewritten with rehash code from br_multicast plus single list * pointer as suggested by Josh Triplett - * - * 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. */ #include <linux/atomic.h> diff --git a/lib/scatterlist.c b/lib/scatterlist.c index 739dc9fe2c55..2882d9ba6607 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -1,10 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2007 Jens Axboe <jens.axboe@oracle.com> * * Scatterlist handling helpers. - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/export.h> #include <linux/slab.h> diff --git a/lib/sg_split.c b/lib/sg_split.c index b063410c3593..9982c63d1063 100644 --- a/lib/sg_split.c +++ b/lib/sg_split.c @@ -1,10 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2015 Robert Jarzmik <robert.jarzmik@free.fr> * * Scatterlist splitting helpers. - * - * This source code is licensed under the GNU General Public License, - * Version 2. See the file COPYING for more details. */ #include <linux/scatterlist.h> diff --git a/lib/test_kasan.c b/lib/test_kasan.c index 7de2702621dc..e3c593c38eff 100644 --- a/lib/test_kasan.c +++ b/lib/test_kasan.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * * Copyright (c) 2014 Samsung Electronics Co., Ltd. * Author: Andrey Ryabinin <a.ryabinin@samsung.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. - * */ #define pr_fmt(fmt) "kasan test: %s " fmt, __func__ diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c index 084fe5a6ac57..c5a6fef7b45d 100644 --- a/lib/test_rhashtable.c +++ b/lib/test_rhashtable.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Resizable, Scalable, Concurrent Hash Table * * Copyright (c) 2014-2015 Thomas Graf <tgraf@suug.ch> * Copyright (c) 2008-2014 Patrick McHardy <kaber@trash.net> - * - * 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. */ /************************************************************************** diff --git a/lib/test_stackinit.c b/lib/test_stackinit.c index e97dc54b4fdf..2d7d257a430e 100644 --- a/lib/test_stackinit.c +++ b/lib/test_stackinit.c @@ -12,7 +12,7 @@ /* Exfiltration buffer. */ #define MAX_VAR_SIZE 128 -static char check_buf[MAX_VAR_SIZE]; +static u8 check_buf[MAX_VAR_SIZE]; /* Character array to trigger stack protector in all functions. */ #define VAR_BUFFER 32 @@ -106,9 +106,18 @@ static noinline __init int test_ ## name (void) \ \ /* Fill clone type with zero for per-field init. */ \ memset(&zero, 0x00, sizeof(zero)); \ + /* Clear entire check buffer for 0xFF overlap test. */ \ + memset(check_buf, 0x00, sizeof(check_buf)); \ /* Fill stack with 0xFF. */ \ ignored = leaf_ ##name((unsigned long)&ignored, 1, \ FETCH_ARG_ ## which(zero)); \ + /* Verify all bytes overwritten with 0xFF. */ \ + for (sum = 0, i = 0; i < target_size; i++) \ + sum += (check_buf[i] != 0xFF); \ + if (sum) { \ + pr_err(#name ": leaf fill was not 0xFF!?\n"); \ + return 1; \ + } \ /* Clear entire check buffer for later bit tests. */ \ memset(check_buf, 0x00, sizeof(check_buf)); \ /* Extract stack-defined variable contents. */ \ @@ -126,9 +135,9 @@ static noinline __init int test_ ## name (void) \ return 1; \ } \ \ - /* Look for any set bits in the check region. */ \ - for (i = 0; i < sizeof(check_buf); i++) \ - sum += (check_buf[i] != 0); \ + /* Look for any bytes still 0xFF in check region. */ \ + for (sum = 0, i = 0; i < target_size; i++) \ + sum += (check_buf[i] == 0xFF); \ \ if (sum == 0) \ pr_info(#name " ok\n"); \ @@ -162,13 +171,13 @@ static noinline __init int leaf_ ## name(unsigned long sp, \ * Keep this buffer around to make sure we've got a \ * stack frame of SOME kind... \ */ \ - memset(buf, (char)(sp && 0xff), sizeof(buf)); \ + memset(buf, (char)(sp & 0xff), sizeof(buf)); \ /* Fill variable with 0xFF. */ \ if (fill) { \ fill_start = &var; \ fill_size = sizeof(var); \ memset(fill_start, \ - (char)((sp && 0xff) | forced_mask), \ + (char)((sp & 0xff) | forced_mask), \ fill_size); \ } \ \ diff --git a/lib/ubsan.c b/lib/ubsan.c index ecc179338094..e7d31735950d 100644 --- a/lib/ubsan.c +++ b/lib/ubsan.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * UBSAN error reporting functions * * Copyright (c) 2014 Samsung Electronics Co., Ltd. * Author: Andrey Ryabinin <ryabinin.a.a@gmail.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. - * */ #include <linux/bitops.h> |