arch/alpha/include/asm/bitops.h

408

return fls64(x) - 1;

arch/alpha/include/asm/bitops.h

413

return fls64(x);

arch/arm64/kvm/va_layout.c

92

tag_lsb = fls64((u64)phys_to_virt(memblock_start_of_DRAM()) ^

arch/arm64/lib/insn.c

1424

ror = fls64(~imm);

arch/arm64/net/bpf_jit_comp.c

166

shift = max(round_down((inverse ? (fls64(rev_tmp) - 1) :

arch/arm64/net/bpf_jit_comp.c

167

(fls64(nrm_tmp) - 1)), 16), 0);

arch/mips/cavium-octeon/octeon-irq.c

1306

int bit = fls64(ciu_sum) - 1;

arch/mips/cavium-octeon/octeon-irq.c

1323

int bit = fls64(ciu_sum) - 1;

arch/mips/cavium-octeon/octeon-irq.c

1342

int bit = fls64(ciu_sum) - 1;

arch/mips/cavium-octeon/octeon-irq.c

2006

line = fls64(sum) - 1;

arch/mips/cavium-octeon/octeon-irq.c

2013

bit = fls64(src) - 1;

arch/mips/cavium-octeon/octeon-irq.c

2043

line = fls64(sum) - 1;

arch/mips/kernel/cpu-probe.c

218

vmbits = fls64(read_c0_entryhi_64() & 0x3fffffffffffe000ULL);

arch/mips/pci/msi-octeon.c

312

bit = fls64(msi_bits);

arch/mips/sibyte/bcm1480/irq.c

326

do_IRQ(fls64(mask_h) - 1);

arch/mips/sibyte/bcm1480/irq.c

328

do_IRQ(63 + fls64(mask_l));

arch/mips/sibyte/sb1250/irq.c

284

do_IRQ(fls64(mask) - 1);

arch/powerpc/platforms/powernv/opal-irqchip.c

51

hwirq = fls64(e) - 1;

arch/powerpc/platforms/pseries/iommu.c

1574

dev_max_ddw = fls64(dma_mask);

arch/riscv/include/asm/word-at-a-time.h

44

return fls64(mask) >> 3;

arch/sparc/mm/init_64.c

1055

m_end += pa_start & ~((1ul << fls64(m_mask)) - 1);

arch/x86/events/intel/core.c

5675

bit = fls64(*cntr_mask);

arch/x86/events/intel/core.c

5683

bit = fls64(*fixed_cntr_mask);

arch/x86/events/intel/core.c

5733

if (!new_weight && fls64(c1->idxmsk64) < INTEL_PMC_IDX_FIXED) {

arch/x86/events/intel/core.c

5777

fls64(new_mask) > fls64(check_mask))

arch/x86/events/intel/core.c

5781

fls64(new_mask) < fls64(check_mask))

arch/x86/events/intel/core.c

8416

if (fls64(x86_pmu.fixed_cntr_mask64) > INTEL_PMC_MAX_FIXED)

arch/x86/events/intel/core.c

8418

intel_v5_gen_event_constraints[fls64(x86_pmu.fixed_cntr_mask64)].weight = -1;

arch/x86/events/perf_event.h

1318

return fls64(hybrid(pmu, cntr_mask64));

arch/x86/events/perf_event.h

1328

return fls64(hybrid(pmu, fixed_cntr_mask64));

arch/x86/kernel/apic/x2apic_uv_x.c

1317

index, _min_socket, _max_socket, _min_pnode, _max_pnode, fls64(gend));

arch/x86/kernel/cpu/mtrr/generic.c

836

hi = fls64(tmp);

arch/x86/kernel/fpu/xstate.c

149

xfeature_idx = fls64(xfeatures_print)-1;

arch/x86/kernel/fpu/xstate.c

592

unsigned int topmost = fls64(xfeatures) - 1;

arch/x86/kvm/svm/avic.c

423

fls64(AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK));

block/sed-opal.c

3174

bit_set = fls64(rw_tbl->flags) - 1;

block/sed-opal.c

758

msb = fls64(number);

drivers/crypto/ccp/ccp-dmaengine.c

24

(mask == 0) ? 64 : fls64(mask); \

drivers/extcon/extcon-fsa9480.c

206

int dev = fls64(mask) - 1;

drivers/extcon/extcon-fsa9480.c

210

int cable = fls64(cables) - 1;

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

2411

tmp = DIV_ROUND_UP(fls64(tmp) - 1, 9) - 1;

drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c

775

*frag = min_t(unsigned int, ffs(start) - 1, fls64(end - start) - 1);

drivers/gpu/drm/i915/i915_syncmap.c

287

above = fls64(__sync_branch_prefix(p, id) ^ p->prefix);

drivers/gpu/drm/i915/selftests/i915_gem_gtt.c

746

for (pot = fls64(hole_end - 1) - 1;

drivers/gpu/drm/i915/selftests/i915_gem_gtt.c

782

__func__, pot, fls64(hole_end - 1) - 1)) {

drivers/gpu/drm/nouveau/nouveau_chan.c

547

drm->runl_nr = fls64(runlists->data);

drivers/gpu/drm/nouveau/nvif/fifo.c

53

device->runlists = fls64(a->v.runlists.data);

drivers/gpu/drm/panfrost/panfrost_mmu.c

121

region_width = max(fls64(region_start ^ (region_end - 1)),

drivers/gpu/drm/panfrost/panfrost_perfcnt.c

313

ncores = fls64(pfdev->features.shader_present);

drivers/gpu/drm/panthor/panthor_mmu.c

552

region_width = max(fls64(*region_start ^ (region_end - 1)),

drivers/gpu/drm/xe/xe_configfs.c

491

if (bit >= fls64(engine_info[i].mask))

drivers/hwmon/lochnagar-hwmon.c

75

if (fls64(man) + exp > (int)sizeof(long) * 8 - 1)

drivers/infiniband/hw/hfi1/chip.c

5821

int posn = fls64(reg_copy);

drivers/iommu/amd/iommu.c

1283

msb_diff = fls64(end ^ address) - 1;

drivers/iommu/fsl_pamu.c

145

return fls64(addrspace_size) - 2;

drivers/md/bcache/bset.c

620

f->exponent = fls64(KEY_INODE(r) ^ KEY_INODE(l)) + 64;

drivers/md/bcache/bset.c

622

f->exponent = fls64(r->low ^ l->low);

drivers/md/dm-integrity.c

4141

for (test_bit = fls64(ic->meta_device_sectors) - 1; test_bit >= 3; test_bit--) {

drivers/md/md-cluster.c

305

slot = fls64((u64)cinfo->recovery_map) - 1;

drivers/media/rc/imon_raw.c

61

bit = fls64(data & (BIT_ULL(offset) - 1));

drivers/mtd/maps/physmap-core.c

521

info->win_order = fls64(resource_size(res)) - 1;

drivers/mtd/nand/raw/brcmnand/brcmnand.c

2813

if (fls64(cfg->device_size) < fls64(BRCMNAND_MIN_DEVSIZE)) {

drivers/mtd/nand/raw/brcmnand/brcmnand.c

2818

device_size = fls64(cfg->device_size) - fls64(BRCMNAND_MIN_DEVSIZE);

drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c

1554

highest_bit = fls64(le64_to_cpu(pcaps.phy_type_high));

drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c

1560

highest_bit = fls64(le64_to_cpu(pcaps.phy_type_low));

drivers/net/ethernet/mellanox/mlx4/en_clock.c

253

u64 max_val_cycles_rounded = 1ULL << fls64(max_val_cycles - 1);

drivers/net/ethernet/mellanox/mlxsw/spectrum_dcb.c

241

map->map[i] = fls64(map->map[i]) - 1;

drivers/net/ethernet/mellanox/mlxsw/spectrum_policer.c

69

return fls64(bs512) - 1;

drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c

1743

int bs = fls64(burst) - 1;

drivers/net/ethernet/microchip/lan966x/lan966x_dcb.c

93

qos.dscp_rewr.map[i] = fls64(dscp_rewr_map.map[i]) - 1;

drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c

193

dscp = fls64(dscp_rewr_map.map[i]) - 1;

drivers/net/wireguard/allowedips.c

84

return a ? fls64(a) + 64U : fls64(b);

drivers/ntb/hw/mscc/ntb_hw_switchtec.c

881

if (__ffs64(tpart_vec) != (fls64(tpart_vec) - 1)) {

drivers/pci/controller/cadence/pcie-cadence-ep.c

99

sz = 1ULL << fls64(sz - 1);

drivers/pci/controller/cadence/pcie-cadence-hpa.c

49

u64 sz = 1ULL << fls64(size - 1);

drivers/pci/controller/cadence/pcie-cadence.c

62

u64 sz = 1ULL << fls64(size - 1);

drivers/pci/controller/pci-aardvark.c

1784

win_size = (1ULL << (fls64(size)-1)) |

drivers/pci/controller/pcie-brcmstb.c

1004

pcie->memc_size[0] = 1ULL << fls64(tot_size - 1);

drivers/pci/controller/pcie-brcmstb.c

1014

size = 1ULL << fls64(size - 1);

drivers/pci/controller/pcie-rcar-ep.c

200

u64 size = 1ULL << fls64(epf_bar->size - 1);

drivers/pci/controller/pcie-rockchip-ep.c

169

sz = 1ULL << fls64(sz - 1);

drivers/pci/controller/pcie-rockchip-ep.c

81

int num_pass_bits = fls64(pci_addr ^ (pci_addr + size - 1));

drivers/pci/endpoint/pci-epc-mem.c

33

order = fls64(size);

drivers/pci/pci-sysfs.c

402

return sysfs_emit(buf, "%d\n", fls64(pdev->dma_mask));

drivers/pci/pci-sysfs.c

410

return sysfs_emit(buf, "%d\n", fls64(dev->coherent_dma_mask));

drivers/soc/fsl/qe/qmc.c

1009

last_tx = fls64(chan->tx_ts_mask);

drivers/thunderbolt/tb.h

1240

return (fls64(route) + TB_ROUTE_SHIFT - 1) / TB_ROUTE_SHIFT;

drivers/xen/swiotlb-xen.c

163

if (xen_create_contiguous_region(phys, order, fls64(dma_mask),

fs/crypto/fscrypt_private.h

375

return fls64(sb->s_maxbytes - 1) - du_bits;

fs/xfs/libxfs/xfs_bit.h

38

return fls64(v) - 1;

include/asm-generic/getorder.h

46

return fls64(size);

include/linux/bitops.h

207

return fls64(l);

include/linux/count_zeros.h

28

return BITS_PER_LONG - fls64(x);

include/linux/kvm_host.h

2088

size_t index = fls64(value);

include/linux/log2.h

32

return fls64(n) - 1;

include/linux/netdev_features.h

178

return fls64(feature) - 1;

kernel/bpf/lpm_trie.c

187

prefixlen = 64 - fls64(diff);

kernel/bpf/tnum.c

25

u8 bits = fls64(chi);

kernel/bpf/tnum.c

307

k = fls64(p); /* k is the most-significant 0-to-1 flip */

kernel/bpf/tnum.c

315

k = fls64(p); /* k is the most-significant 1-to-0 flip */

kernel/bpf/verifier.c

5216

return fls64(reg->umax_value);

kernel/dma/direct.c

45

return (1ULL << (fls64(max_dma) - 1)) * 2 - 1;

kernel/events/core.c

4336

count_fls = fls64(count);

kernel/events/core.c

4337

nsec_fls = fls64(nsec);

kernel/events/core.c

4338

frequency_fls = fls64(frequency);

kernel/fork.c

817

if (fls64(nr_pages) + fls64(PAGE_SIZE) > 64)

kernel/time/timekeeping.c

1088

if (((int)sizeof(u64)*8 - fls64(mult) < fls64(tmp)) ||

kernel/time/timekeeping.c

1089

((int)sizeof(u64)*8 - fls64(mult) < fls64(rem)))

kernel/time/timekeeping.c

1254

if (BITS_TO_BYTES(fls64(*delta) + tkr->shift) >= sizeof(*delta))

lib/clz_ctz.c

34

return 64 - fls64(val);

lib/math/int_sqrt.c

56

m = 1ULL << ((fls64(x) - 1) & ~1ULL);

lib/tests/ffs_kunit.c

172

KUNIT_EXPECT_EQ(test, fls64(input), 0);

lib/tests/ffs_kunit.c

176

fls64_result = fls64(input);

lib/tests/ffs_kunit.c

190

KUNIT_EXPECT_EQ_MSG(test, fls64(input), fls(input_32),

lib/tests/ffs_kunit.c

192

input, input_32, fls64(input), fls(input_32));

lib/tests/ffs_kunit.c

251

validate_ffs64_result(test, tc->input, fls64(tc->input),

net/ipv4/tcp_cubic.c

189

b = fls64(a);

net/mac80211/iface.c

2147

if (__ffs64(mask) + hweight64(mask) != fls64(mask)) {

net/smc/smc_stats.h

103

_pos = fls64((l - 1) >> 13); \

sound/soc/fsl/fsl_qmc_audio.c

849

last_rx_ts = fls64(ts_info.rx_ts_mask);

sound/soc/fsl/fsl_qmc_audio.c

850

last_tx_ts = fls64(ts_info.tx_ts_mask);

tools/include/linux/bitops.h

79

return fls64(l);

tools/include/linux/log2.h

29

return fls64(n) - 1;

tools/testing/selftests/bpf/progs/bpf_cubic.c

241

b = fls64(a);