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/linux/lib/zlib_inflate/
H A Dinftrees.c1 /* inftrees.c -- generate Huffman trees for efficient decoding
2 * Copyright (C) 1995-2005 Mark Adler
13 The code lengths are lens[0..codes-1]. The result starts at *table,
14 whose indices are 0..2^bits-1. work is a writable array of at least
17 -1 is an invalid code, and +1 means that ENOUGH isn't enough. table
26 unsigned len; /* a code's length in bits */ in zlib_inflate_table() local
28 unsigned min, max; /* minimum and maximum code lengths */ in zlib_inflate_table() local
31 unsigned drop; /* code bits to drop for sub-table */ in zlib_inflate_table()
63 code lengths are lens[0..codes-1]. Each length corresponds to the in zlib_inflate_table()
64 symbols 0..codes-1. The Huffman code is generated by first sorting the in zlib_inflate_table()
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/linux/tools/lib/python/feat/
H A Dparse_features.py4 # SPDX-License-Identifier: GPL-2.0
36 # The only missing status is "..", which was mapped as "---",
53 self.max_size_name = len(self.h_name)
54 self.max_size_kconfig = len(self.h_kconfig)
55 self.max_size_description = len(self.h_description)
57 self.max_size_subsys = len(self.h_subsys)
58 self.max_size_status = len(self.h_status)
59 self.max_size_arch = len(self.h_arch)
85 """Parses a single arch-support.txt feature file"""
92 if base != "arch-support.txt":
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/linux/lib/
H A Dnlattr.c1 // SPDX-License-Identifier: GPL-2.0
60 static int __nla_validate_parse(const struct nlattr *head, int len, int maxtype,
72 return -EINVAL; in validate_nla_bitfield32()
75 if (bf->selector & ~valid_flags_mask) in validate_nla_bitfield32()
76 return -EINVAL; in validate_nla_bitfield32()
79 if (bf->value & ~valid_flags_mask) in validate_nla_bitfield32()
80 return -EINVAL; in validate_nla_bitfield32()
83 if (bf->value & ~bf->selector) in validate_nla_bitfield32()
84 return -EINVAL; in validate_nla_bitfield32()
89 static int nla_validate_array(const struct nlattr *head, int len, int maxtype, in nla_validate_array() argument
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/linux/include/linux/
H A Dhighmem.h1 /* SPDX-License-Identifier: GPL-2.0 */
14 #include "highmem-internal.h"
17 * kmap - Map a page for long term usage
40 * kunmap - Unmap the virtual address mapped by kmap()
49 * kmap_to_page - Get the page for a kmap'ed address
57 * kmap_flush_unused - Flush all unused kmap mappings in order to
63 * kmap_local_page - Map a page for temporary usage
99 * kmap_local_folio - Map a page in this folio for temporary usage
135 * kmap_atomic - Atomically map a page for temporary usage - Deprecated!
212 * vma_alloc_zeroed_movable_folio - Allocate a zeroed page for a VMA.
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H A Dminmax.h1 /* SPDX-License-Identifier: GPL-2.0 */
11 * min()/max()/clamp() macros must accomplish several things:
13 * - Avoid multiple evaluations of the arguments (so side-effects like
14 * "x++" happen only once) when non-constant.
15 * - Perform signed v unsigned type-checking (to generate compile
17 * - Unsigned char/short are always promoted to signed int and can be
19 * - Unsigned arguments can be compared against non-negative signed constants.
20 * - Comparison of a signed argument against an unsigned constant fails
31 * In particular, statically non-negative signed integer expressions
53 * Check whether a signed value is always non-negative.
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/linux/net/netfilter/
H A Dnf_log_syslog.c1 // SPDX-License-Identifier: GPL-2.0-only
2 /* (C) 1999-2001 Paul `Rusty' Russell
3 * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
57 nf_log_buf_add(m, "VPROTO=%04x VID=%u ", ntohs(skb->vlan_proto), vid); in nf_log_dump_vlan()
76 if (info->type == NF_LOG_TYPE_LOG) in dump_arp_packet()
77 logflags = info->u.log.logflags; in dump_arp_packet()
83 eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest); in dump_arp_packet()
86 ntohs(eth_hdr(skb)->h_proto)); in dump_arp_packet()
90 ntohs(ah->ar_hrd), ntohs(ah->ar_pro), ntohs(ah->ar_op)); in dump_arp_packet()
94 if (ah->ar_hrd != htons(ARPHRD_ETHER) || in dump_arp_packet()
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/linux/fs/hfsplus/
H A Dbitmap.c1 // SPDX-License-Identifier: GPL-2.0
20 u32 offset, u32 *max) in hfsplus_block_allocate() argument
26 u32 mask, start, len, n; in hfsplus_block_allocate() local
30 len = *max; in hfsplus_block_allocate()
31 if (!len) in hfsplus_block_allocate()
34 hfs_dbg("size %u, offset %u, len %u\n", size, offset, len); in hfsplus_block_allocate()
35 mutex_lock(&sbi->alloc_mutex); in hfsplus_block_allocate()
36 mapping = sbi->alloc_file->i_mapping; in hfsplus_block_allocate()
43 curr = pptr + (offset & (PAGE_CACHE_BITS - 1)) / 32; in hfsplus_block_allocate()
45 offset &= ~(PAGE_CACHE_BITS - 1); in hfsplus_block_allocate()
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/linux/net/xdp/
H A Dxsk_queue.h1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* XDP user-space ring structure
58 * Documentation/core-api/circular-buffers.rst. For the Rx and
65 * if (LOAD ->consumer) { (A) LOAD.acq ->producer (C)
67 * STORE.rel ->producer (B) STORE.rel ->consumer (D)
82 * between ->producer and data.
84 * (A) is a control dependency that separates the load of ->consumer
85 * from the stores of $data. In case ->consumer indicates there is no
122 struct xdp_umem_ring *ring = (struct xdp_umem_ring *)q->ring; in __xskq_cons_read_addr_unchecked()
123 u32 idx = cached_cons & q->ring_mask; in __xskq_cons_read_addr_unchecked()
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/linux/tools/perf/scripts/python/
H A Dtask-analyzer.py1 # task-analyzer.py - comprehensive perf tasks analysis
2 # SPDX-License-Identifier: GPL-2.0
8 # perf record -e sched:sched_switch -a -- sleep 10
9 # perf script report task-analyzer
21 os.environ["PERF_EXEC_PATH"] + "/scripts/python/Perf-Trace-Util/lib/Perf/Trace"
39 LEN_SWITCHED_IN = len("9999999.999999999") # 17
40 LEN_SWITCHED_OUT = len("9999999.999999999") # 17
41 LEN_CPU = len("000")
42 LEN_PID = len("maxvalue") # 8
43 LEN_TID = len("maxvalue") # 8
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/linux/drivers/pnp/
H A Dsupport.c1 // SPDX-License-Identifier: GPL-2.0
3 * support.c - standard functions for the use of pnp protocol drivers
6 * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
16 * pnp_is_active - Determines if a device is active based on its current
24 * only clears out auto-assigned resources. in pnp_is_active()
28 pnp_irq(dev, 0) == -1 && pnp_dma(dev, 0) == -1) in pnp_is_active()
44 * According to the specs, the first three characters are five-bit in pnp_eisa_id_to_string()
45 * compressed ASCII, and the left-over high order bit should be zero. in pnp_eisa_id_to_string()
51 str[0] = 'A' + ((id >> 26) & 0x3f) - 1; in pnp_eisa_id_to_string()
52 str[1] = 'A' + ((id >> 21) & 0x1f) - 1; in pnp_eisa_id_to_string()
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/linux/drivers/pnp/pnpbios/
H A Drsparser.c1 // SPDX-License-Identifier: GPL-2.0
3 * rsparser.c - parses and encodes pnpbios resource data streams
45 * end tag ->
47 * end tag ->
49 * final end tag ->
57 int start, int len) in pnpbios_parse_allocated_ioresource() argument
60 int end = start + len - 1; in pnpbios_parse_allocated_ioresource()
62 if (len <= 0 || end >= 0x10003) in pnpbios_parse_allocated_ioresource()
69 int start, int len) in pnpbios_parse_allocated_memresource() argument
72 int end = start + len - 1; in pnpbios_parse_allocated_memresource()
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/linux/Documentation/core-api/
H A Dnetlink.rst1 .. SPDX-License-Identifier: BSD-3-Clause
13 ---------------
21 -------------
31 ---------------
44 ----------
51 ------------------------
54 them - make sure to report dump inconsistency with ``NLM_F_DUMP_INTR``.
65 -------
67 kernel-policy
71 operations of the family, defined for each operation individually - ``per-op``,
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/linux/drivers/gpu/drm/nouveau/nvkm/subdev/bios/
H A Dvolt.c29 nvbios_volt_table(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) in nvbios_volt_table() argument
47 *len = nvbios_rd08(bios, volt + 1); in nvbios_volt_table()
52 *len = nvbios_rd08(bios, volt + 3); in nvbios_volt_table()
59 *len = nvbios_rd08(bios, volt + 2); in nvbios_volt_table()
69 nvbios_volt_parse(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len, in nvbios_volt_parse() argument
72 u32 volt = nvbios_volt_table(bios, ver, hdr, cnt, len); in nvbios_volt_parse()
76 info->type = NVBIOS_VOLT_GPIO; in nvbios_volt_parse()
77 info->vidmask = nvbios_rd08(bios, volt + 0x04); in nvbios_volt_parse()
78 info->ranged = false; in nvbios_volt_parse()
81 info->type = NVBIOS_VOLT_GPIO; in nvbios_volt_parse()
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/linux/fs/nfsd/
H A Dnfscache.c1 // SPDX-License-Identifier: GPL-2.0
4 * change in the future and be a per-client cache.
26 * We use this value to determine the number of hash buckets from the max
61 * ~1k, so the above numbers should give a rough max of the amount of memory
64 * XXX: these limits are per-container, so memory used will increase
71 unsigned long low_pages = totalram_pages() - totalhigh_pages(); in nfsd_cache_size_limit()
73 limit = (16 * int_sqrt(low_pages)) << (PAGE_SHIFT-10); in nfsd_cache_size_limit()
78 * Compute the number of hash buckets we need. Divide the max cachesize by
79 * the "target" max bucket size, and round up to next power of two.
95 rp->c_state = RC_UNUSED; in nfsd_cacherep_alloc()
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/linux/drivers/net/wireless/broadcom/brcm80211/include/
H A Dbrcmu_utils.h1 // SPDX-License-Identifier: ISC
20 countdown -= 10; \
24 /* osl multi-precedence packet queue */
25 #define PKTQ_LEN_DEFAULT 128 /* Max 128 packets */
28 #define BCME_STRLEN 64 /* Max string length for BCM errors */
45 #define MAXBITVAL(nbits) ((1 << (nbits)) - 1)
53 /* 18-bytes of Ethernet address buffer length */
58 u16 max; /* maximum number of queued packets */ member
61 /* multi-priority pkt queue */
64 u16 hi_prec; /* rapid dequeue hint (>= highest non-empty prec) */
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/linux/fs/smb/client/
H A Dcompress.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * MS-SMB2 "3.1.4.4 Compressing the Message"
12 * MS-SMB2 "3.1.5.3 Decompressing the Chained Message"
13 * MS-XCA - for details of the supported algorithms
39 * Parsing the sample goes from "low-hanging fruits" (fastest algorithms, likely compressible)
48 * has_low_entropy() - Compute Shannon entropy of the sampled data.
66 size_t i, p, p2, len, sum = 0; in has_low_entropy() local
69 len = ilog2(pow4(slen)); in has_low_entropy()
74 sum += p * (len - p2); in has_low_entropy()
86 * calc_byte_distribution() - Compute byte distribution on the sampled data.
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/linux/kernel/
H A Dsysctl.c1 // SPDX-License-Identifier: GPL-2.0-only
26 const int sysctl_vals[] = { 0, 1, 2, 3, 4, 100, 200, 1000, 3000, INT_MAX, 65535, -1 };
41 * enum sysctl_writes_mode - supported sysctl write modes
52 * position, but restrict this to the max length of the buffer, anything
53 * passed the max length will be ignored. Multiple writes will append
61 SYSCTL_WRITES_LEGACY = -1,
79 size_t len; in _proc_do_string() local
90 len = strlen(data); in _proc_do_string()
91 if (len > maxlen - 1) in _proc_do_string()
92 len = maxlen - 1; in _proc_do_string()
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H A Dkallsyms_selftest.c1 // SPDX-License-Identifier: GPL-2.0-or-later
28 int max; member
106 u32 pos, off, len, num; in test_kallsyms_compression_ratio() local
125 len = kallsyms_names[off]; in test_kallsyms_compression_ratio()
129 if ((len & 0x80) != 0) { in test_kallsyms_compression_ratio()
130 len = (len & 0x7f) | (kallsyms_names[off] << 7); in test_kallsyms_compression_ratio()
134 off += len; in test_kallsyms_compression_ratio()
142 total_size = off - num; in test_kallsyms_compression_ratio()
147 pr_info(" ---------------------------------------------------------\n"); in test_kallsyms_compression_ratio()
149 pr_info("|---------------------------------------------------------|\n"); in test_kallsyms_compression_ratio()
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/linux/drivers/net/wireless/mediatek/mt76/
H A Dmt792x_acpi_sar.c1 // SPDX-License-Identifier: BSD-3-Clause-Clear
30 mt792x_acpi_read(struct mt792x_dev *dev, u8 *method, u8 **tbl, u32 *len) in mt792x_acpi_read() argument
33 struct mt76_dev *mdev = &dev->mt76; in mt792x_acpi_read()
40 root = ACPI_HANDLE(mdev->dev); in mt792x_acpi_read()
42 return -EOPNOTSUPP; in mt792x_acpi_read()
46 return -EI in mt792x_acpi_read()
95 int len, ret; mt792x_asar_acpi_read_mtcl() local
115 int len, ret, sarlen, prelen, tblcnt; mt792x_asar_acpi_read_mtds() local
150 int len, ret, sarlen, prelen, tblcnt; mt792x_asar_acpi_read_mtgs() local
181 int len, ret; mt792x_asar_acpi_read_mtfg() local
240 u8 idx, max; mt792x_asar_get_geo_pwr() local
295 u8 *limit, band, max; mt792x_asar_range_pwr() local
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/linux/tools/power/cpupower/utils/helpers/
H A Dbitmask.c1 // SPDX-License-Identifier: GPL-2.0
12 #define howmany(x, y) (((x)+((y)-1))/(y))
17 #define max(a, b) ((a) > (b) ? (a) : (b)) macro
31 bmp->size = n; in bitmask_alloc()
32 bmp->maskp = calloc(longsperbits(n), sizeof(unsigned long)); in bitmask_alloc()
33 if (!bmp->maskp) { in bitmask_alloc()
45 free(bmp->maskp); in bitmask_free()
46 bmp->maskp = (unsigned long *)0xdeadcdef; /* double free tripwire */ in bitmask_free()
52 * routines that actually understand the layout of bmp->maskp[].
64 if (n < bmp->size) in _getbit()
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/linux/scripts/dtc/libfdt/
H A Dfdt_ro.c1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
3 * libfdt - Flat Device Tree manipulation
14 const char *s, int len) in fdt_nodename_eq_() argument
19 if (!p || olen < len) in fdt_nodename_eq_()
23 if (memcmp(p, s, len) != 0) in fdt_nodename_eq_()
26 if (p[len] == '\0') in fdt_nodename_eq_()
28 else if (!memchr(s, '@', len) && (p[len] == '@')) in fdt_nodename_eq_()
38 size_t len; in fdt_get_string() local
54 err = -FDT_ERR_BADOFFSET; in fdt_get_string()
58 len = totalsize - absoffset; in fdt_get_string()
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/linux/drivers/gpu/drm/msm/disp/dpu1/
H A Ddpu_hw_catalog.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
4 * Copyright (c) 2015-2018, 2020 The Linux Foundation. All rights reserved.
16 * Max hardware block count: For ex: max 12 SSPP pipes or
17 * 5 ctl paths. In all cases, it can have max 12 hardware blocks
32 * SSPP sub-blocks/features
34 …* @DPU_SSPP_SCALER_QSEED3_COMPATIBLE, QSEED3-compatible alogorithm support (includes QSEED3, QSEE…
37 * @DPU_SSPP_CSC_10BIT, Support of 10-bit Color space conversion
68 * MIXER sub-blocks/features
69 * @DPU_MIXER_SOURCESPLIT Layer mixer supports source-split configuration
[all …]
/linux/drivers/net/usb/
H A Dcdc_ncm.c4 * Copyright (C) ST-Ericsson 2010-2012
16 * of the GNU General Public License (GPL) Version 2 or the 2-clause
78 .sizeof_stat = sizeof(((struct cdc_ncm_ctx *)0)->m), \
101 return -EOPNOTSUPP; in cdc_ncm_get_sset_count()
110 struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; in cdc_ncm_get_ethtool_stats()
152 struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; in cdc_ncm_check_rx_max()
153 u32 val, max, min; in cdc_ncm_check_rx_max() local
157 max = min_t(u32, CDC_NCM_NTB_MAX_SIZE_RX, le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize)); in cdc_ncm_check_rx_max()
160 if (max < min) { in cdc_ncm_check_rx_max()
161 dev_warn(&dev->intf->dev, "dwNtbInMaxSize=%u is too small. Using %u\n", in cdc_ncm_check_rx_max()
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/linux/fs/ext4/
H A Dmballoc.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2003-2006, Cluster File Systems, Inc, info@clusterfs.com
18 #include <linux/backing-dev.h>
25 * - test ext4_ext_search_left() and ext4_ext_search_right()
26 * - search for metadata in few groups
29 * - normalization should take into account whether file is still open
30 * - discard preallocations if no free space left (policy?)
31 * - do
506 mb_find_next_zero_bit(void * addr,int max,int start) mb_find_next_zero_bit() argument
519 mb_find_next_bit(void * addr,int max,int start) mb_find_next_bit() argument
532 mb_find_buddy(struct ext4_buddy * e4b,int order,int * max) mb_find_buddy() argument
690 int max; __mb_check_buddy() local
791 ext4_mb_mark_free_simple(struct super_block * sb,void * buddy,ext4_grpblk_t first,ext4_grpblk_t len,struct ext4_group_info * grp) ext4_mb_mark_free_simple() argument
796 ext4_grpblk_t max; ext4_mb_mark_free_simple() local
826 mb_avg_fragment_size_order(struct super_block * sb,ext4_grpblk_t len) mb_avg_fragment_size_order() argument
1258 ext4_grpblk_t max = EXT4_CLUSTERS_PER_GROUP(sb); ext4_mb_generate_buddy() local
1261 ext4_grpblk_t len; ext4_mb_generate_buddy() local
1816 int order = 1, max; mb_find_order_for_block() local
1833 mb_clear_bits(void * bm,int cur,int len) mb_clear_bits() argument
1854 mb_test_and_clear_bits(void * bm,int cur,int len) mb_test_and_clear_bits() argument
1878 mb_set_bits(void * bm,int cur,int len) mb_set_bits() argument
1912 int max; mb_buddy_mark_free() local
2059 int max, order, next; mb_find_extent() local
2119 int max = 0; mb_mark_used() local
2121 int len = ex->fe_len; mb_mark_used() local
2373 int max; ext4_mb_try_best_found() local
2402 int max; ext4_mb_find_by_goal() local
2475 int max; ext4_mb_simple_scan_group() local
2614 int max; ext4_mb_scan_aligned() local
3685 unsigned max; ext4_mb_init() local
4060 ext4_mb_mark_context(handle_t * handle,struct super_block * sb,bool state,ext4_group_t group,ext4_grpblk_t blkoff,ext4_grpblk_t len,int flags,ext4_grpblk_t * ret_changed) ext4_mb_mark_context() argument
4173 int err, len; ext4_mb_mark_diskspace_used() local
4238 ext4_mb_mark_bb(struct super_block * sb,ext4_fsblk_t block,int len,bool state) ext4_mb_mark_bb() argument
4502 int bsbits, max; ext4_mb_normalize_request() local
4539 NRL_CHECK_SIZE(req,size,max,chunk_size) ext4_mb_normalize_request() argument
4750 int len; ext4_mb_use_inode_pa() local
4778 unsigned int len = ac->ac_o_ex.fe_len; ext4_mb_use_group_pa() local
5075 int len; ext4_mb_generate_from_pa() local
5875 unsigned int len; ext4_mb_initialize_context() local
6154 ext4_grpblk_t max = EXT4_CLUSTERS_PER_GROUP(sb); ext4_mb_new_blocks_simple() local
6908 ext4_try_to_trim_range(struct super_block * sb,struct ext4_buddy * e4b,ext4_grpblk_t start,ext4_grpblk_t max,ext4_grpblk_t minblocks) ext4_try_to_trim_range() argument
6981 ext4_trim_all_free(struct super_block * sb,ext4_group_t group,ext4_grpblk_t start,ext4_grpblk_t max,ext4_grpblk_t minblocks) ext4_trim_all_free() argument
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/linux/tools/testing/selftests/powerpc/copyloops/
H A Dmemmove_validate.c1 // SPDX-License-Identifier: GPL-2.0
13 size_t max(size_t a, size_t b) in max() function
22 size_t i, src_off, dst_off, len; in testcase_run() local
40 for (len = 1; len < MAX_OFFSET - max(src_off, dst_off); len++) { in testcase_run()
42 memmove(usermap + dst_off, usermap + src_off, len); in testcase_run()
43 TEST_MEMMOVE(kernelmap + dst_off, kernelmap + src_off, len); in testcase_run()
46 src_off, dst_off, len); in testcase_run()

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