Linux / Drivers / Pci

File Size

The distribution of size of files (measured in lines of code).

Intro

File size measurements show the distribution of size of files.
Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

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File Size Overall

There are 188 files with 91,934 lines of code.

21 very long files (35,040 lines of code)
38 long files (28,084 lines of code)
63 medium size files (21,947 lines of codeclsfd_ftr_w_mp_ins)
33 small files (4,962 lines of code)
33 very small files (1,901 lines of code)

Legend:

1001+

501-1000

201-500

101-200

1-100

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File Size per Extension

1001+

501-1000

201-500

101-200

1-100

File Size per Logical Decomposition

primary

1001+

501-1000

201-500

101-200

1-100

Longest Files (Top 50)

File	# lines	# units
pci.c in root	3847	253
quirks.c in root	3699	200
pci-hyperv.c in controller	2371	75
probe.c in root	2169	85
pci-tegra.c in controller	2111	75
cpqphp_ctrl.c in hotplug	1797	27
pcie-tegra194.c in controller/dwc	1780	55
ibmphp_res.c in hotplug	1692	18
setup-bus.c in root	1536	63
switchtec.c in switch	1482	54
pcie-qcom.c in controller/dwc	1283	32
ibmphp_pci.c in hotplug	1260	10
pci-aardvark.c in controller	1230	39
pcie-brcmstb.c in controller	1211	45
pci-epf-ntb.c in endpoint/functions	1201	36
pci-sysfs.c in root	1164	68
pcie-iproc.c in controller	1088	37
pci-driver.c in root	1052	56
cpqphp_pci.c in hotplug	1032	17
pci-imx6.c in controller/dwc	1023	28
pci-acpi.c in root	1012	47
aer.c in pcie	997	49
pci-keystone.c in controller/dwc	994	41
ibmphp_core.c in hotplug	971	29
cpqphp_core.c in hotplug	962	20
pci-mvebu.c in controller	959	32
aspm.c in pcie	936	43
pcie-microchip-host.c in controller	928	30
xen-pcifront.c in root	916	33
pcie-mediatek.c in controller	914	31
ibmphp_ebda.c in hotplug	865	24
shpchp_hpc.c in hotplug	838	34
iov.c in root	798	47
pcie-rockchip-host.c in controller	797	30
pcie-rcar-host.c in controller	786	36
pci-epf-test.c in endpoint/functions	760	20
pcie-mediatek-gen3.c in controller	752	35
pci-dra7xx.c in controller/dwc	751	32
pnv_php.c in hotplug	744	32
vmd.c in controller	731	34
ibmphp_hpc.c in hotplug	730	22
msi.c in msi	725	49
pciehp_hpc.c in hotplug	721	41
acpiphp_glue.c in hotplug	669	33
pcie-altera.c in controller	649	33
pcie-apple.c in controller	637	27
pcie-xilinx-nwl.c in controller	631	24
pci-v3-semi.c in controller	629	9
pci.h in root	625	77
pcie-designware-ep.c in controller/dwc	621	30

Files With Most Units (Top 50)

File	# lines	# units
pci.c in root	3847	253
quirks.c in root	3699	200
probe.c in root	2169	85
pci.h in root	625	77
pci-tegra.c in controller	2111	75
pci-hyperv.c in controller	2371	75
pci-sysfs.c in root	1164	68
setup-bus.c in root	1536	63
pci-driver.c in root	1052	56
pcie-tegra194.c in controller/dwc	1780	55
switchtec.c in switch	1482	54
msi.c in msi	725	49
aer.c in pcie	997	49
iov.c in root	798	47
pci-acpi.c in root	1012	47
pcie-brcmstb.c in controller	1211	45
aspm.c in pcie	936	43
pciehp_hpc.c in hotplug	721	41
pci-keystone.c in controller/dwc	994	41
pci-aardvark.c in controller	1230	39
pcie-iproc.c in controller	1088	37
pcie-rcar-host.c in controller	786	36
pci-epf-ntb.c in endpoint/functions	1201	36
pcie-mediatek-gen3.c in controller	752	35
shpchp_hpc.c in hotplug	838	34
vmd.c in controller	731	34
acpiphp_glue.c in hotplug	669	33
pcie-altera.c in controller	649	33
xen-pcifront.c in root	916	33
pnv_php.c in hotplug	744	32
pci-mvebu.c in controller	959	32
pcie-designware.c in controller/dwc	578	32
pcie-qcom.c in controller/dwc	1283	32
pci-dra7xx.c in controller/dwc	751	32
pcie-mediatek.c in controller	914	31
pcie-microchip-host.c in controller	928	30
pcie-rockchip-host.c in controller	797	30
pcie-designware-ep.c in controller/dwc	621	30
ibmphp_core.c in hotplug	971	29
pcie-kirin.c in controller/dwc	616	28
pci-imx6.c in controller/dwc	1023	28
vpd.c in root	420	27
cpqphp_ctrl.c in hotplug	1797	27
pcie-intel-gw.c in controller/dwc	354	27
pcie-apple.c in controller	637	27
access.c in root	413	25
pcie-mt7621.c in controller	414	25
pci-epc-core.c in endpoint	469	25
ibmphp_ebda.c in hotplug	865	24
pci-xgene.c in controller	497	24

Files With Long Lines (Top 19)

There are 19 files with lines longer than 120 characters. In total, there are 58 long lines.

File	# lines	# units	# long lines
ibmphp_res.c in hotplug	1692	18	12
ibmphp_pci.c in hotplug	1260	10	11
quirks.c in root	3699	200	10
cpqphp_pci.c in hotplug	1032	17	6
probe.c in root	2169	85	3
cpqphp.h in hotplug	562	22	2
ibmphp_ebda.c in hotplug	865	24	2
setup-bus.c in root	1536	63	1
access.c in root	413	25	1
pci.c in root	3847	253	1
vpd.c in root	420	27	1
ibmphp_hpc.c in hotplug	730	22	1
pciehp_hpc.c in hotplug	721	41	1
acpiphp_core.c in hotplug	158	12	1
shpchp_core.c in hotplug	252	14	1
cpqphp_ctrl.c in hotplug	1797	27	1
pcie-designware-host.c in controller/dwc	462	20	1
p2pdma.c in root	610	24	1
dpc.c in pcie	298	15	1