Commit f40eb998 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman Committed by Jens Axboe
Browse files

pktcdvd: remove driver. 



Way back in 2016 in commit 5a8b187c ("pktcdvd: mark as unmaintained
and deprecated") this driver was marked as "will be removed soon".  5
years seems long enough to have it stick around after that, so finally
remove the thing now.

Reported-by: default avatarChristoph Hellwig <hch@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Thomas Maier <balagi@justmail.de>
Cc: Peter Osterlund <petero2@telia.com>
Cc: linux-block@vger.kernel.org
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20221202182758.1339039-1-gregkh@linuxfoundation.org


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 1d6df9d3

Documentation/ABI/testing/debugfs-pktcdvd

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What:           /sys/kernel/debug/pktcdvd/pktcdvd[0-7]

Date:           Oct. 2006

KernelVersion:  2.6.20

Contact:        Thomas Maier <balagi@justmail.de>

Description:



The pktcdvd module (packet writing driver) creates

these files in debugfs:



/sys/kernel/debug/pktcdvd/pktcdvd[0-7]/



    ====            ====== ====================================

    info            0444   Lots of driver statistics and infos.

    ====            ====== ====================================



Example::



    cat /sys/kernel/debug/pktcdvd/pktcdvd0/info

Documentation/ABI/testing/sysfs-class-pktcdvd

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sysfs interface

---------------

The pktcdvd module (packet writing driver) creates the following files in the

sysfs: (<devid> is in the format major:minor)



What:		/sys/class/pktcdvd/add

What:		/sys/class/pktcdvd/remove

What:		/sys/class/pktcdvd/device_map

Date:		Oct. 2006

KernelVersion:	2.6.20

Contact:	Thomas Maier <balagi@justmail.de>

Description:



		==========	==============================================

		add		(WO) Write a block device id (major:minor) to

				create a new pktcdvd device and map it to the

				block device.



		remove		(WO) Write the pktcdvd device id (major:minor)

				to remove the pktcdvd device.



		device_map	(RO) Shows the device mapping in format:

				pktcdvd[0-7] <pktdevid> <blkdevid>

		==========	==============================================





What:		/sys/class/pktcdvd/pktcdvd[0-7]/dev

What:		/sys/class/pktcdvd/pktcdvd[0-7]/uevent

Date:		Oct. 2006

KernelVersion:	2.6.20

Contact:	Thomas Maier <balagi@justmail.de>

Description:

		dev:	(RO) Device id



		uevent:	(WO) To send a uevent





What:		/sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_started

What:		/sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_finished

What:		/sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_written

What:		/sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read

What:		/sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read_gather

What:		/sys/class/pktcdvd/pktcdvd[0-7]/stat/reset

Date:		Oct. 2006

KernelVersion:	2.6.20

Contact:	Thomas Maier <balagi@justmail.de>

Description:

		packets_started:	(RO) Number of started packets.



		packets_finished:	(RO) Number of finished packets.



		kb_written:		(RO) kBytes written.



		kb_read:		(RO) kBytes read.



		kb_read_gather:		(RO) kBytes read to fill write packets.



		reset:			(WO) Write any value to it to reset

					pktcdvd device statistic values, like

					bytes read/written.





What:		/sys/class/pktcdvd/pktcdvd[0-7]/write_queue/size

What:		/sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_off

What:		/sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_on

Date:		Oct. 2006

KernelVersion:	2.6.20

Contact:	Thomas Maier <balagi@justmail.de>

Description:

		==============	================================================

		size		(RO) Contains the size of the bio write queue.



		congestion_off	(RW) If bio write queue size is below this mark,

				accept new bio requests from the block layer.



		congestion_on	(RW) If bio write queue size is higher as this

				mark, do no longer accept bio write requests

				from the block layer and wait till the pktcdvd

				device has processed enough bio's so that bio

				write queue size is below congestion off mark.

				A value of <= 0 disables congestion control.

		==============	================================================





Example:

--------

To use the pktcdvd sysfs interface directly, you can do::



    # create a new pktcdvd device mapped to /dev/hdc

    echo "22:0" >/sys/class/pktcdvd/add

    cat /sys/class/pktcdvd/device_map

    # assuming device pktcdvd0 was created, look at stat's

    cat /sys/class/pktcdvd/pktcdvd0/stat/kb_written

    # print the device id of the mapped block device

    fgrep pktcdvd0 /sys/class/pktcdvd/device_map

    # remove device, using pktcdvd0 device id   253:0

    echo "253:0" >/sys/class/pktcdvd/remove

MAINTAINERS

+0 −7
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@@ -16367,13 +16367,6 @@ S: Supported 
F:	Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml

F:	drivers/input/keyboard/pinephone-keyboard.c









PKTCDVD DRIVER









M:	linux-block@vger.kernel.org









S:	Orphan









F:	drivers/block/pktcdvd.c









F:	include/linux/pktcdvd.h









F:	include/uapi/linux/pktcdvd.h

















PLANTOWER PMS7003 AIR POLLUTION SENSOR DRIVER









M:	Tomasz Duszynski <tduszyns@gmail.com>









S:	Maintained
































drivers/block/Kconfig



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@@ -285,49 +285,6 @@ config BLK_DEV_RAM_SIZE







	  The default value is 4096 kilobytes. Only change this if you know









	  what you are doing.



















config CDROM_PKTCDVD









	tristate "Packet writing on CD/DVD media (DEPRECATED)"









	depends on !UML









	depends on SCSI









	select CDROM









	help









	  Note: This driver is deprecated and will be removed from the









	  kernel in the near future!



















	  If you have a CDROM/DVD drive that supports packet writing, say









	  Y to include support. It should work with any MMC/Mt Fuji









	  compliant ATAPI or SCSI drive, which is just about any newer









	  DVD/CD writer.



















	  Currently only writing to CD-RW, DVD-RW, DVD+RW and DVDRAM discs









	  is possible.









	  DVD-RW disks must be in restricted overwrite mode.



















	  See the file <file:Documentation/cdrom/packet-writing.rst>









	  for further information on the use of this driver.



















	  To compile this driver as a module, choose M here: the









	  module will be called pktcdvd.



















config CDROM_PKTCDVD_BUFFERS









	int "Free buffers for data gathering"









	depends on CDROM_PKTCDVD









	default "8"









	help









	  This controls the maximum number of active concurrent packets. More









	  concurrent packets can increase write performance, but also require









	  more memory. Each concurrent packet will require approximately 64Kb









	  of non-swappable kernel memory, memory which will be allocated when









	  a disc is opened for writing.



















config CDROM_PKTCDVD_WCACHE









	bool "Enable write caching"









	depends on CDROM_PKTCDVD









	help









	  If enabled, write caching will be set for the CD-R/W device. For now









	  this option is dangerous unless the CD-RW media is known good, as we









	  don't do deferred write error handling yet.



















config ATA_OVER_ETH









	tristate "ATA over Ethernet support"









	depends on NET
































drivers/block/Makefile



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−1






























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@@ -20,7 +20,6 @@ obj-$(CONFIG_AMIGA_Z2RAM)	+= z2ram.o







obj-$(CONFIG_N64CART)		+= n64cart.o









obj-$(CONFIG_BLK_DEV_RAM)	+= brd.o









obj-$(CONFIG_BLK_DEV_LOOP)	+= loop.o









obj-$(CONFIG_CDROM_PKTCDVD)	+= pktcdvd.o









obj-$(CONFIG_SUNVDC)		+= sunvdc.o



















obj-$(CONFIG_BLK_DEV_NBD)	+= nbd.o