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/linux/drivers/net/ethernet/intel/igc/
A Digc_diag.c39 u32 pat, val, before; in reg_pattern_test() local
45 before = rd32(reg); in reg_pattern_test()
53 wr32(reg, before); in reg_pattern_test()
56 wr32(reg, before); in reg_pattern_test()
65 u32 val, before; in reg_set_and_check() local
67 before = rd32(reg); in reg_set_and_check()
75 wr32(reg, before); in reg_set_and_check()
78 wr32(reg, before); in reg_set_and_check()
86 u32 value, before, after; in igc_reg_test() local
96 value = before & toggle; in igc_reg_test()
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/linux/tools/perf/util/bpf_skel/
A Dbpf_prog_profiler.bpf.c55 struct bpf_perf_event_value *before, diff; in fexit_update_maps() local
58 before = bpf_map_lookup_elem(&fentry_readings, &zero); in fexit_update_maps()
60 if (before && before->counter) { in fexit_update_maps()
63 diff.counter = after->counter - before->counter; in fexit_update_maps()
64 diff.enabled = after->enabled - before->enabled; in fexit_update_maps()
65 diff.running = after->running - before->running; in fexit_update_maps()
/linux/tools/testing/selftests/vm/
A Dthuge-gen.c145 unsigned long before, after; in test_mmap() local
148 before = read_free(size); in test_mmap()
156 before, after, before - after, size); in test_mmap()
157 assert(size == getpagesize() || (before - after) == NUM_PAGES); in test_mmap()
166 unsigned long before, after; in test_shmget() local
169 before = read_free(size); in test_shmget()
188 before, after, before - after, size); in test_shmget()
189 assert(size == getpagesize() || (before - after) == NUM_PAGES); in test_shmget()
/linux/tools/bpf/bpftool/skeleton/
A Dprofiler.bpf.c73 struct bpf_perf_event_value *before, diff; in fexit_update_maps() local
75 before = bpf_map_lookup_elem(&fentry_readings, &id); in fexit_update_maps()
77 if (before && before->counter) { in fexit_update_maps()
80 diff.counter = after->counter - before->counter; in fexit_update_maps()
81 diff.enabled = after->enabled - before->enabled; in fexit_update_maps()
82 diff.running = after->running - before->running; in fexit_update_maps()
/linux/Documentation/virt/kvm/
A Dcpuid.rst11 mask-out some, or even all KVM-related cpuid features before launching
66 before enabling paravirtualized
70 before enabling paravirtualized
78 before enabling paravirtualized
86 before using paravirtualized
90 before using the second async
96 before using extended destination
99 KVM_FEATURE_HC_MAP_GPA_RANGE 16 guest checks this feature bit before
103 KVM_FEATURE_MIGRATION_CONTROL 17 guest checks this feature bit before
/linux/tools/testing/selftests/arm64/pauth/
A Dpac.c331 struct signatures before; in TEST() local
336 sign_specific(&before, ARBITRARY_VALUE); in TEST()
344 ASSERT_EQ(before.keyia, after.keyia) TH_LOG("keyia changed after context switching"); in TEST()
345 ASSERT_EQ(before.keyib, after.keyib) TH_LOG("keyib changed after context switching"); in TEST()
346 ASSERT_EQ(before.keyda, after.keyda) TH_LOG("keyda changed after context switching"); in TEST()
347 ASSERT_EQ(before.keydb, after.keydb) TH_LOG("keydb changed after context switching"); in TEST()
354 size_t before; in TEST() local
359 before = keyg_sign(ARBITRARY_VALUE); in TEST()
367 ASSERT_EQ(before, after) TH_LOG("keyg changed after context switching"); in TEST()
/linux/tools/memory-model/Documentation/
A Dexplanation.txt265 It's not possible to have X ordered before Y, Y ordered before Z, and
266 Z ordered before X, because this would mean that X is ordered before
785 before any po-later loads;
1030 cannot execute R' before R, because it cannot forward the value before
1175 execute before W does.
1370 propagate to Y's CPU before X does, hence before Y executes and hence
1451 every CPU before G ends.
1577 3. Y is po-before Z;
1586 G's CPU before G starts must propagate to every CPU before C starts.
2038 Y executes before X -- then Y must propagate to X's CPU before X
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/linux/tools/testing/selftests/powerpc/pmu/ebb/
A Dpmae_handling_test.c29 static uint64_t before, after; variable
44 before = mfspr(SPRN_MMCR0); in syscall_ebb_callee()
50 if (before != after) in syscall_ebb_callee()
88 printf("Saw MMCR0 before 0x%lx after 0x%lx\n", before, after); in test_body()
/linux/net/netfilter/ipset/
A Dip_set_list_set.c36 int before; member
202 if (d->before == 0) { in list_set_utest()
204 } else if (d->before > 0) { in list_set_utest()
250 else if (d->before > 0) in list_set_uadd()
258 (d->before < 0 && !prev)) in list_set_uadd()
274 if (d->before == 0) { in list_set_uadd()
278 } else if (d->before > 0) { in list_set_uadd()
330 if (d->before > 0) { in list_set_udel()
335 } else if (d->before < 0) { in list_set_udel()
394 if (!e.before) in list_set_uadt()
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/linux/arch/powerpc/lib/
A Drheap.c154 rh_block_t *before; in attach_free_block() local
168 before = NULL; in attach_free_block()
182 before = blk; in attach_free_block()
188 if (before != NULL && after != NULL) in attach_free_block()
193 if (before && s != (before->start + before->size)) in attach_free_block()
194 before = NULL; in attach_free_block()
200 if (before == NULL && after == NULL) { in attach_free_block()
214 if (before != NULL && after == NULL) { in attach_free_block()
215 before->size += size; in attach_free_block()
220 if (before == NULL && after != NULL) { in attach_free_block()
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/linux/tools/testing/selftests/intel_pstate/
A Daperf.c29 struct timespec before, after; in main() local
62 if (clock_gettime(CLOCK_MONOTONIC, &before) < 0) { in main()
86 start = before.tv_sec*MSEC_PER_SEC + before.tv_nsec/NSEC_PER_MSEC; in main()
/linux/Documentation/ABI/stable/
A Dsysfs-transport-srp13 layer error has been observed before removing a target port.
22 layer error has been observed before failing I/O. Zero means
38 attempt failed before retrying. Setting this attribute to
55 after the fast_io_fail_tmo timer has fired and before the
57 "dev_loss_tmo" timer has fired and before the port is finally
/linux/Documentation/ABI/testing/
A Dsysfs-devices-waiting_for_supplier12 before the device can probe.
15 to be added before it can probe. A value of 1 means the device
16 is waiting for one or more suppliers to be added before it can
A Ddebugfs-driver-genwqe33 Description: Dump of the error registers before the last reset of
40 Description: Internal chip state of UID0 before card was reset.
46 Description: Internal chip state of UID1 before card was reset.
52 Description: Internal chip state of UID2 before card was reset.
76 The driver ensures that the settings are done just before
/linux/fs/reiserfs/
A Dlbalance.c927 ih = item_head(bh, before); in leaf_insert_into_buf()
948 memmove(ih + 1, ih, IH_SIZE * (nr - before)); in leaf_insert_into_buf()
952 for (i = before; i < nr + 1; i++) { in leaf_insert_into_buf()
953 unmoved_loc -= ih_item_len(&ih[i - before]); in leaf_insert_into_buf()
1316 int before, in leaf_paste_entries() argument
1338 RFALSE(ih_entry_count(ih) < before, in leaf_paste_entries()
1340 ih_entry_count(ih), before); in leaf_paste_entries()
1351 (before ? deh_location(&deh[before - 1]) in leaf_paste_entries()
1361 for (i = 0; i < before; i++) in leaf_paste_entries()
1376 deh += before; in leaf_paste_entries()
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/linux/sound/firewire/tascam/
A Damdtp-tascam.c138 __be32 before; in read_status_messages() local
142 before = tscm->state[index]; in read_status_messages()
157 if ((before ^ after) & mask) { in read_status_messages()
164 entry->before = before; in read_status_messages()
/linux/Documentation/nvdimm/
A Dmaintainer-entry-profile.rst25 before submitting, but it is not required.
32 Those tests need to be passed before the patches go upstream, but not
33 necessarily before initial posting. Contact the list if you need help
49 next merge window they should be sent before -rc4, and ideally
57 In general, please wait up to one week before pinging for feedback. A
/linux/scripts/coccinelle/iterators/
A Dfor_each_child.cocci2 // Adds missing of_node_put() before return/break/goto statement within a for_each iterator for chi…
307 msg = "WARNING: Function \"%s\" should have of_node_put() before return " % (i)
317 msg = "WARNING: Function \"%s\" should have of_node_put() before break " % (i)
327 msg = "WARNING: Function \"%s\" should have of_node_put() before goto " % (i)
339 msg = "WARNING: Function \"%s\" should have of_node_put() before return around line %s." % (i, j1[0…
348 msg = "WARNING: Function \"%s\" should have of_node_put() before break around line %s." % (i,j2[0].…
357 msg = "WARNING: Function \"%s\" should have of_node_put() before goto around lines %s." % (i,j3[0].…
/linux/drivers/soc/fsl/qbman/
A Dqman_ccsr.c647 u32 before, after; in __qman_liodn_fixup() local
651 before = qm_ccsr_in(REG_REV3_QCSP_LIO_CFG(idx)); in __qman_liodn_fixup()
653 before = qm_ccsr_in(REG_QCSP_LIO_CFG(idx)); in __qman_liodn_fixup()
655 liodn_offset = before & LIO_CFG_LIODN_MASK; in __qman_liodn_fixup()
659 after = (before & (~LIO_CFG_LIODN_MASK)) | liodn_offset; in __qman_liodn_fixup()
670 u32 before, after; in qman_set_sdest() local
673 before = qm_ccsr_in(REG_REV3_QCSP_IO_CFG(idx)); in qman_set_sdest()
676 after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16); in qman_set_sdest()
679 before = qm_ccsr_in(REG_QCSP_IO_CFG(idx)); in qman_set_sdest()
680 after = (before & (~IO_CFG_SDEST_MASK)) | (cpu_idx << 16); in qman_set_sdest()
/linux/scripts/coccinelle/free/
A Difnullfree.cocci2 /// NULL check before some freeing functions is not needed.
60 cocci.print_main("NULL check before that freeing function is not needed", p)
66 msg = "WARNING: NULL check before some freeing functions is not needed."
/linux/Documentation/RCU/
A Drculist_nulls.rst36 * reuse these object before the RCU grace period, we
82 solved by pre-fetching the "next" field (with proper barriers) before
91 before the move, 'next' pointer is NULL, and lockless reader can
104 * we need to make sure obj->key is updated before obj->next
117 very very fast (before the end of RCU grace period)
192 * changes to obj->key must be visible before refcnt one
/linux/scripts/
A DMakefile.kcsan14 …on,$(call cc-param,tsan-compound-read-before-write=1),$(call cc-option,$(call cc-param,tsan-instru…
/linux/net/ipv4/
A Dtcp_input.c994 if (!before(start_seq, end_seq)) in tcp_dsack_seen()
1040 if (!before(low_seq, fack)) in tcp_check_sack_reordering()
1072 before(TCP_SKB_CB(skb)->seq, in tcp_verify_retransmit_hint()
1385 if (before(start_seq, in tcp_sacktag_one()
3267 if (before(start_seq, reord)) in tcp_clean_rtx_queue()
3372 if (before(reord, prior_fack)) in tcp_clean_rtx_queue()
3762 if (before(ack, prior_snd_una)) { in tcp_ack()
4405 if (before(seq, sp->start_seq)) in tcp_sack_extend()
4421 if (before(seq, tp->rcv_nxt)) in tcp_dsack_set()
5188 while (before(start, end)) { in tcp_collapse()
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/linux/Documentation/maintainer/
A Dmaintainer-entry-profile.rst47 require published specifications at a certain revision before patches
54 sent at any time before the merge window closes and can still be
63 their first posting for consideration before this point. Patches that
68 submissions should appear before -rc5.
87 addition to specifying how long to wait before a resubmission this
/linux/Documentation/core-api/
A Dcircular-buffers.rst171 /* wake_up() will make sure that the head is committed before
179 before the head index makes it available to the consumer and then instructs the
180 CPU that the revised head index must be written before the consumer is woken.
185 producer must produce two elements before it could possibly corrupt the
199 /* Read index before reading contents at that index. */
210 /* Finish reading descriptor before incrementing tail. */
217 This will instruct the CPU to make sure the index is up to date before reading
219 before it writes the new tail pointer, which will erase the item.

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