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/Linux-v5.15/tools/testing/selftests/powerpc/switch_endian/
Dcheck.S8 * r15: pattern to check registers against.
14 cmpd r9,r3 # check r3
16 addi r9,r15,4 # check r4
19 lis r9,0x00FF # check CR
26 addi r9,r15,32 # check LR
30 addi r9,r15,5 # check r5
33 addi r9,r15,6 # check r6
36 addi r9,r15,7 # check r7
39 addi r9,r15,8 # check r8
42 addi r9,r15,13 # check r13
[all …]
/Linux-v5.15/tools/testing/selftests/bpf/prog_tests/
Dpinning.c18 if (CHECK(!map, "find map", "NULL map")) in get_map_id()
23 CHECK(err, "get map info", "err %d errno %d", err, errno); in get_map_id()
45 /* check that opening fails with invalid pinning value in map def */ in test_pinning()
48 if (CHECK(err != -EINVAL, "invalid open", "err %d errno %d\n", err, errno)) { in test_pinning()
56 if (CHECK(err, "default open", "err %d errno %d\n", err, errno)) { in test_pinning()
62 if (CHECK(err, "default load", "err %d errno %d\n", err, errno)) in test_pinning()
65 /* check that pinmap was pinned */ in test_pinning()
67 if (CHECK(err, "stat pinpath", "err %d errno %d\n", err, errno)) in test_pinning()
70 /* check that nopinmap was *not* pinned */ in test_pinning()
72 if (CHECK(!err || errno != ENOENT, "stat nopinpath", in test_pinning()
[all …]
Dskeleton.c23 if (CHECK(!skel, "skel_open", "failed to open skeleton\n")) in test_skeleton()
26 if (CHECK(skel->kconfig, "skel_kconfig", "kconfig is mmaped()!\n")) in test_skeleton()
34 CHECK(data->in1 != -1, "in1", "got %d != exp %d\n", data->in1, -1); in test_skeleton()
35 CHECK(data->out1 != -1, "out1", "got %d != exp %d\n", data->out1, -1); in test_skeleton()
36 CHECK(data->in2 != -1, "in2", "got %lld != exp %lld\n", data->in2, -1LL); in test_skeleton()
37 CHECK(data->out2 != -1, "out2", "got %lld != exp %lld\n", data->out2, -1LL); in test_skeleton()
39 CHECK(bss->in3 != 0, "in3", "got %d != exp %d\n", bss->in3, 0); in test_skeleton()
40 CHECK(bss->out3 != 0, "out3", "got %d != exp %d\n", bss->out3, 0); in test_skeleton()
41 CHECK(bss->in4 != 0, "in4", "got %lld != exp %lld\n", bss->in4, 0LL); in test_skeleton()
42 CHECK(bss->out4 != 0, "out4", "got %lld != exp %lld\n", bss->out4, 0LL); in test_skeleton()
[all …]
Dhashmap.c59 if (CHECK(err != -ENOENT, "hashmap__update", in test_hashmap_generic()
67 if (CHECK(oldk != NULL || oldv != NULL, "check_kv", in test_hashmap_generic()
72 if (CHECK(err, "elem_add", "failed to add k/v %ld = %ld: %d\n", in test_hashmap_generic()
76 if (CHECK(!hashmap__find(map, k, &oldv), "elem_find", in test_hashmap_generic()
79 if (CHECK(oldv != v, "elem_val", in test_hashmap_generic()
84 if (CHECK(hashmap__size(map) != ELEM_CNT, "hashmap__size", in test_hashmap_generic()
87 if (CHECK(hashmap__capacity(map) != exp_cap(hashmap__size(map)), in test_hashmap_generic()
98 if (CHECK(v - k != 1024, "check_kv", in test_hashmap_generic()
102 if (CHECK(found_msk != (1ULL << ELEM_CNT) - 1, "elem_cnt", in test_hashmap_generic()
111 if (CHECK(err != -EEXIST, "hashmap__add", in test_hashmap_generic()
[all …]
Dcgroup_attach_override.c32 if (CHECK(allow_prog < 0, "prog_load_allow", in test_cgroup_attach_override()
37 if (CHECK(drop_prog < 0, "prog_load_drop", in test_cgroup_attach_override()
42 if (CHECK(foo < 0, "cgroup_join_foo", "cgroup setup failed\n")) in test_cgroup_attach_override()
45 if (CHECK(bpf_prog_attach(drop_prog, foo, BPF_CGROUP_INET_EGRESS, in test_cgroup_attach_override()
51 if (CHECK(!system(PING_CMD), "ping_fail", in test_cgroup_attach_override()
56 if (CHECK(bar < 0, "cgroup_join_bar", "cgroup setup failed\n")) in test_cgroup_attach_override()
59 if (CHECK(!system(PING_CMD), "ping_fail", in test_cgroup_attach_override()
63 if (CHECK(bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS, in test_cgroup_attach_override()
69 if (CHECK(system(PING_CMD), "ping_ok", "ping failed\n")) in test_cgroup_attach_override()
72 if (CHECK(bpf_prog_detach(bar, BPF_CGROUP_INET_EGRESS), in test_cgroup_attach_override()
[all …]
Dbpf_iter.c37 if (CHECK(skel, "bpf_iter_test_kern3__open_and_load", in test_btf_id_or_null()
55 if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n")) in do_dummy_read()
58 /* not check contents, but ensure read() ends without error */ in do_dummy_read()
61 CHECK(len < 0, "read", "read failed: %s\n", strerror(errno)); in do_dummy_read()
90 if (CHECK(!skel, "bpf_iter_ipv6_route__open_and_load", in test_ipv6_route()
104 if (CHECK(!skel, "bpf_iter_netlink__open_and_load", in test_netlink()
118 if (CHECK(!skel, "bpf_iter_bpf_map__open_and_load", in test_bpf_map()
132 if (CHECK(!skel, "bpf_iter_task__open_and_load", in test_task()
146 if (CHECK(!skel, "bpf_iter_task_stack__open_and_load", in test_task_stack()
168 if (CHECK(!skel, "bpf_iter_task_file__open_and_load", in test_task_file()
[all …]
Dd_path.c37 if (CHECK(pipe(pipefd) < 0, "trigger", "pipe failed\n")) in trigger_fstat_events()
41 if (CHECK(sockfd < 0, "trigger", "socket failed\n")) in trigger_fstat_events()
45 if (CHECK(procfd < 0, "trigger", "open /proc/self/comm failed\n")) in trigger_fstat_events()
48 if (CHECK(devfd < 0, "trigger", "open /dev/urandom failed\n")) in trigger_fstat_events()
51 if (CHECK(localfd < 0, "trigger", "open /tmp/d_path_loadgen.txt failed\n")) in trigger_fstat_events()
56 if (CHECK(indicatorfd < 0, "trigger", "open /tmp/ failed\n")) in trigger_fstat_events()
60 if (CHECK(ret < 0, "trigger", "set_pathname failed for pipe[0]\n")) in trigger_fstat_events()
63 if (CHECK(ret < 0, "trigger", "set_pathname failed for pipe[1]\n")) in trigger_fstat_events()
66 if (CHECK(ret < 0, "trigger", "set_pathname failed for socket\n")) in trigger_fstat_events()
69 if (CHECK(ret < 0, "trigger", "set_pathname failed for proc\n")) in trigger_fstat_events()
[all …]
Dringbuf.c48 CHECK(s->value != 333, "sample1_value", "exp %ld, got %ld\n", in process_sample()
52 CHECK(s->value != 777, "sample2_value", "exp %ld, got %ld\n", in process_sample()
94 if (CHECK(!skel, "skel_open", "skeleton open failed\n")) in test_ringbuf()
100 if (CHECK(err != 0, "skel_load", "skeleton load failed\n")) in test_ringbuf()
154 if (CHECK(!ringbuf, "ringbuf_create", "failed to create ringbuf\n")) in test_ringbuf()
158 if (CHECK(err, "skel_attach", "skeleton attachment failed: %d\n", err)) in test_ringbuf()
164 CHECK(skel->bss->avail_data != 3 * rec_sz, in test_ringbuf()
167 CHECK(skel->bss->ring_size != page_size, in test_ringbuf()
170 CHECK(skel->bss->cons_pos != 0, in test_ringbuf()
173 CHECK(skel->bss->prod_pos != 3 * rec_sz, in test_ringbuf()
[all …]
Dringbuf_multi.c23 CHECK(ring != 1, "sample1_ring", "exp %d, got %d\n", 1, ring); in process_sample()
24 CHECK(s->value != 333, "sample1_value", "exp %ld, got %ld\n", in process_sample()
28 CHECK(ring != 2, "sample2_ring", "exp %d, got %d\n", 2, ring); in process_sample()
29 CHECK(s->value != 777, "sample2_value", "exp %ld, got %ld\n", in process_sample()
33 CHECK(true, "extra_sample", "unexpected sample seq %d, val %ld\n", in process_sample()
50 if (CHECK(!skel, "skel_open", "skeleton open failed\n")) in test_ringbuf_multi()
54 if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) in test_ringbuf_multi()
58 if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) in test_ringbuf_multi()
62 if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) in test_ringbuf_multi()
66 if (CHECK(proto_fd < 0, "bpf_create_map", "bpf_create_map failed\n")) in test_ringbuf_multi()
[all …]
Dxdp_link.c21 if (CHECK(!skel1, "skel_load", "skeleton open and load failed\n")) in test_xdp_link()
26 if (CHECK(!skel2, "skel_load", "skeleton open and load failed\n")) in test_xdp_link()
32 if (CHECK(err, "fd_info1", "failed %d\n", -errno)) in test_xdp_link()
38 if (CHECK(err, "fd_info2", "failed %d\n", -errno)) in test_xdp_link()
44 if (CHECK(err, "fd_attach", "initial prog attach failed: %d\n", err)) in test_xdp_link()
49 CHECK(err || id0 != id1, "id1_check", in test_xdp_link()
65 if (CHECK(err, "prog_detach", "failed %d\n", err)) in test_xdp_link()
76 if (CHECK(err || id0 != id1, "id1_check", in test_xdp_link()
83 if (CHECK(!err, "prog_attach_fail", "unexpected success\n")) in test_xdp_link()
88 if (CHECK(!err, "prog_update_fail", "unexpected success\n")) in test_xdp_link()
[all …]
Dksyms_btf.c23 if (CHECK(err == -EINVAL, "kallsyms_fopen", "failed to open: %d\n", errno)) in test_basic()
25 if (CHECK(err == -ENOENT, "ksym_find", "symbol 'runqueues' not found\n")) in test_basic()
29 if (CHECK(err == -EINVAL, "kallsyms_fopen", "failed to open: %d\n", errno)) in test_basic()
31 if (CHECK(err == -ENOENT, "ksym_find", "symbol 'bpf_prog_active' not found\n")) in test_basic()
35 if (CHECK(!skel, "skel_open", "failed to open and load skeleton\n")) in test_basic()
39 if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err)) in test_basic()
46 CHECK(data->out__runqueues_addr != runqueues_addr, "runqueues_addr", in test_basic()
50 CHECK(data->out__bpf_prog_active_addr != bpf_prog_active_addr, "bpf_prog_active_addr", in test_basic()
55 CHECK(data->out__rq_cpu == -1, "rq_cpu", in test_basic()
57 CHECK(data->out__bpf_prog_active < 0, "bpf_prog_active", in test_basic()
[all …]
Dmmap.c33 if (CHECK(!skel, "skel_open", "skeleton open failed\n")) in test_mmap()
37 if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) in test_mmap()
43 if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n")) in test_mmap()
47 if (CHECK(err != 0, "skel_load", "skeleton load failed\n")) in test_mmap()
56 if (CHECK(tmp1 != MAP_FAILED, "rdonly_write_mmap", "unexpected success\n")) { in test_mmap()
60 /* now double-check if it's mmap()'able at all */ in test_mmap()
62 if (CHECK(tmp1 == MAP_FAILED, "rdonly_read_mmap", "failed: %d\n", errno)) in test_mmap()
68 if (CHECK(err, "map_get_info", "failed %d\n", errno)) in test_mmap()
75 if (CHECK(bss_mmaped == MAP_FAILED, "bss_mmap", in test_mmap()
83 if (CHECK(map_mmaped == MAP_FAILED, "data_mmap", in test_mmap()
[all …]
Dtrace_ext.c31 if (CHECK(!skel_pkt, "setup", "classifier/test_pkt_md_access open failed\n")) in test_trace_ext()
35 if (CHECK(err, "setup", "classifier/test_pkt_md_access attach failed: %d\n", err)) in test_trace_ext()
43 if (CHECK(!skel_ext, "setup", "freplace/test_pkt_md_access open failed\n")) in test_trace_ext()
52 if (CHECK(err, "setup", "freplace/test_pkt_md_access load failed\n")) { in test_trace_ext()
59 if (CHECK(err, "setup", "freplace/test_pkt_md_access attach failed: %d\n", err)) in test_trace_ext()
67 if (CHECK(!skel_trace, "setup", "tracing/test_pkt_md_access_new open failed\n")) in test_trace_ext()
80 if (CHECK(err, "setup", "tracing/test_pkt_md_access_new load failed\n")) { in test_trace_ext()
87 if (CHECK(err, "setup", "tracing/test_pkt_md_access_new attach failed: %d\n", err)) in test_trace_ext()
93 CHECK(err || retval, "run", "err %d errno %d retval %d\n", err, errno, retval); in test_trace_ext()
100 CHECK(bss_ext->ext_called == 0, in test_trace_ext()
[all …]
Draw_tp_test_run.c27 if (CHECK(err, "parse_cpu_mask_file", "err %d\n", err)) in test_raw_tp_test_run()
31 if (CHECK(!skel, "skel_open", "failed to open skeleton\n")) in test_raw_tp_test_run()
35 if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err)) in test_raw_tp_test_run()
39 if (CHECK(comm_fd < 0, "open /proc/self/comm", "err %d\n", errno)) in test_raw_tp_test_run()
43 CHECK(err < 0, "task rename", "err %d", errno); in test_raw_tp_test_run()
45 CHECK(skel->bss->count == 0, "check_count", "didn't increase\n"); in test_raw_tp_test_run()
46 CHECK(skel->data->on_cpu != 0xffffffff, "check_on_cpu", "got wrong value\n"); in test_raw_tp_test_run()
54 CHECK(err == 0, "test_run", "should fail for too small ctx\n"); in test_raw_tp_test_run()
58 CHECK(err < 0, "test_run", "err %d\n", errno); in test_raw_tp_test_run()
59 CHECK(test_attr.retval != expected_retval, "check_retval", in test_raw_tp_test_run()
[all …]
Dbtf_map_in_map.c31 if (CHECK(!skel, "skel_open", "failed to open&load skeleton\n")) in test_lookup_update()
35 if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err)) in test_lookup_update()
54 CHECK(val != 1, "inner1", "got %d != exp %d\n", val, 1); in test_lookup_update()
56 CHECK(val != 2, "inner2", "got %d != exp %d\n", val, 2); in test_lookup_update()
58 CHECK(val != 3, "inner3", "got %d != exp %d\n", val, 3); in test_lookup_update()
67 CHECK(val != 4, "inner1", "got %d != exp %d\n", val, 4); in test_lookup_update()
69 CHECK(val != 3, "inner2", "got %d != exp %d\n", val, 3); in test_lookup_update()
71 CHECK(val != 5, "inner4", "got %d != exp %d\n", val, 5); in test_lookup_update()
78 CHECK(val != 7, "inner5", "got %d != exp %d\n", val, 7); in test_lookup_update()
102 CHECK(map1_id == 0, "map1_id", "failed to get ID 1\n"); in test_lookup_update()
[all …]
Dxdp_info.c18 if (CHECK(err, "get_xdp_none", "errno=%d\n", errno)) in test_xdp_info()
20 if (CHECK(prog_id, "prog_id_none", "unexpected prog_id=%u\n", prog_id)) in test_xdp_info()
24 if (CHECK(err, "get_xdp_none_skb", "errno=%d\n", errno)) in test_xdp_info()
26 if (CHECK(prog_id, "prog_id_none_skb", "unexpected prog_id=%u\n", in test_xdp_info()
37 if (CHECK(err, "get_prog_info", "errno=%d\n", errno)) in test_xdp_info()
41 if (CHECK(err, "set_xdp_skb", "errno=%d\n", errno)) in test_xdp_info()
47 if (CHECK(err, "get_xdp", "errno=%d\n", errno)) in test_xdp_info()
49 if (CHECK(prog_id != info.id, "prog_id", "prog_id not available\n")) in test_xdp_info()
53 if (CHECK(err, "get_xdp_skb", "errno=%d\n", errno)) in test_xdp_info()
55 if (CHECK(prog_id != info.id, "prog_id_skb", "prog_id not available\n")) in test_xdp_info()
[all …]
/Linux-v5.15/tools/testing/selftests/drivers/net/netdevsim/
Dethtool-fec.sh13 check $? "$s" "Configured FEC encodings: None
18 check $?
20 check $? "$s" "Configured FEC encodings: Auto
26 check $?
28 check $? "$s" "Configured FEC encodings: Off
34 check $?
36 check $? "$s" "Configured FEC encodings: BaseR
42 check $?
44 check $? "$s" "Configured FEC encodings: ${o^^}
50 check $?
[all …]
/Linux-v5.15/tools/testing/selftests/arm64/mte/
Dcheck_mmap_options.c214 "Check anonymous memory with private mapping, sync error mode, mmap memory and tag check off\n"); in main()
216 …"Check file memory with private mapping, sync error mode, mmap/mprotect memory and tag check off\n… in main()
220 "Check anonymous memory with private mapping, no error mode, mmap memory and tag check off\n"); in main()
222 "Check file memory with private mapping, no error mode, mmap/mprotect memory and tag check off\n"); in main()
225 "Check anonymous memory with private mapping, sync error mode, mmap memory and tag check on\n"); in main()
227 …"Check anonymous memory with private mapping, sync error mode, mmap/mprotect memory and tag check in main()
229 "Check anonymous memory with shared mapping, sync error mode, mmap memory and tag check on\n"); in main()
231 …"Check anonymous memory with shared mapping, sync error mode, mmap/mprotect memory and tag check o… in main()
233 "Check anonymous memory with private mapping, async error mode, mmap memory and tag check on\n"); in main()
235 …"Check anonymous memory with private mapping, async error mode, mmap/mprotect memory and tag check in main()
[all …]
/Linux-v5.15/arch/powerpc/lib/
Dcode-patching.c237 * Helper to check if a given instruction is a conditional branch
268 /* Check we can represent the target in the instruction format */ in create_branch()
287 /* Check we can represent the target in the instruction format */ in create_cond_branch()
414 #define check(x) \ macro
426 check(instr_is_branch_iform(ppc_inst(0x48000000))); in test_branch_iform()
428 check(instr_is_branch_iform(ppc_inst(0x4bffffff))); in test_branch_iform()
430 check(!instr_is_branch_iform(ppc_inst(0xcbffffff))); in test_branch_iform()
432 check(!instr_is_branch_iform(ppc_inst(0x7bffffff))); in test_branch_iform()
435 check(instr_is_branch_iform(ppc_inst(0x48000001))); in test_branch_iform()
437 check(instr_is_branch_iform(ppc_inst(0x4bfffffd))); in test_branch_iform()
[all …]
/Linux-v5.15/drivers/firmware/efi/
Dcper-x86.c48 #define CHECK_VALID_BITS(check) (((check) & GENMASK_ULL(15, 0))) argument
49 #define CHECK_TRANS_TYPE(check) (((check) & GENMASK_ULL(17, 16)) >> 16) argument
50 #define CHECK_OPERATION(check) (((check) & GENMASK_ULL(21, 18)) >> 18) argument
51 #define CHECK_LEVEL(check) (((check) & GENMASK_ULL(24, 22)) >> 22) argument
58 #define CHECK_BUS_PART_TYPE(check) (((check) & GENMASK_ULL(31, 30)) >> 30) argument
60 #define CHECK_BUS_ADDR_SPACE(check) (((check) & GENMASK_ULL(34, 33)) >> 33) argument
69 #define CHECK_MS_ERR_TYPE(check) (((check) & GENMASK_ULL(18, 16)) >> 16) argument
144 "MSR Registers (Machine Check and other MSRs)",
153 static inline void print_bool(char *str, const char *pfx, u64 check, u64 bit) in print_bool() argument
155 printk("%s%s: %s\n", pfx, str, (check & bit) ? "true" : "false"); in print_bool()
[all …]
/Linux-v5.15/lib/
Dpercpu_test.c5 #define CHECK(native, pcp, expected) \ macro
36 CHECK(l, long_counter, -1); in percpu_test_init()
40 CHECK(l, long_counter, 0); in percpu_test_init()
47 CHECK(ul, ulong_counter, 1); in percpu_test_init()
51 CHECK(ul, ulong_counter, 0); in percpu_test_init()
55 CHECK(ul, ulong_counter, -1); in percpu_test_init()
62 CHECK(ul, ulong_counter, -1); in percpu_test_init()
63 CHECK(ul, ulong_counter, ULONG_MAX); in percpu_test_init()
67 CHECK(l, long_counter, 0xffffffff); in percpu_test_init()
71 CHECK(l, long_counter, (long)0x100000000LL); in percpu_test_init()
[all …]
Dbitfield_kunit.c95 #define CHECK(tp, mask) do { \ macro
105 CHECK(u8, 0x0f); in test_bitfields_variables()
106 CHECK(u8, 0xf0); in test_bitfields_variables()
107 CHECK(u8, 0x38); in test_bitfields_variables()
109 CHECK(u16, 0x0038); in test_bitfields_variables()
110 CHECK(u16, 0x0380); in test_bitfields_variables()
111 CHECK(u16, 0x3800); in test_bitfields_variables()
112 CHECK(u16, 0x8000); in test_bitfields_variables()
114 CHECK(u32, 0x80000000); in test_bitfields_variables()
115 CHECK(u32, 0x7f000000); in test_bitfields_variables()
[all …]
/Linux-v5.15/arch/m68k/fpsp040/
Dsmovecr.S48 | check range of offset
52 cmpib #0x0a,%d0 |check range $01 - $0a
54 cmpib #0x0e,%d0 |check range $0b - $0e
56 cmpib #0x2f,%d0 |check range $10 - $2f
58 cmpib #0x3f,%d0 |check range $30 - $3f
64 tstb %d1 |offset is zero, check for rmode
66 cmpib #0x3,%d1 |check for rp
79 tstb %d1 |check for rmode
81 cmpib #0x3,%d1 |check for rp
85 cmpib #0x2,%d0 |check if result is inex
[all …]
/Linux-v5.15/tools/testing/selftests/net/mptcp/
Dpm_netlink.sh49 check() function
71 check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "defaults addr list"
72 check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
78 check "ip netns exec $ns1 ./pm_nl_ctl get 1" "id 1 flags 10.0.1.1" "simple add/get addr"
80 check "ip netns exec $ns1 ./pm_nl_ctl dump" \
86 check "ip netns exec $ns1 ./pm_nl_ctl get 2" "" "simple del addr"
87 check "ip netns exec $ns1 ./pm_nl_ctl dump" \
92 check "ip netns exec $ns1 ./pm_nl_ctl get 4" "" "duplicate addr"
95 check "ip netns exec $ns1 ./pm_nl_ctl get 4" "id 4 flags signal 10.0.1.4" "id addr increment"
100 check "ip netns exec $ns1 ./pm_nl_ctl get 9" "id 9 flags signal 10.0.1.9" "hard addr limit"
[all …]
/Linux-v5.15/include/net/
Ddsfield.h31 __u32 check = ntohs((__force __be16)iph->check); in ipv4_change_dsfield() local
35 check += iph->tos; in ipv4_change_dsfield()
36 if ((check+1) >> 16) check = (check+1) & 0xffff; in ipv4_change_dsfield()
37 check -= dsfield; in ipv4_change_dsfield()
38 check += check >> 16; /* adjust carry */ in ipv4_change_dsfield()
39 iph->check = (__force __sum16)htons(check); in ipv4_change_dsfield()

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