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Commit 25398a15 authored by Eric W. Biederman's avatar Eric W. Biederman Committed by Linus Torvalds
Browse files

sysctl: parport remove binary paths 



The sysctl binary paths don't look as if they even code work, .data is not
filled in, and all of the proc_handlers look at extra1 and there is not
strategy routine.

So just kill the binary paths.

In addition this patch removes the setting of extra1 on directories.  It
doesn't look like the parport code ever examines it, and it's bad sysctl form.

[bunk@kernel.org: remove parport_device_num()]
Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: default avatarAdrian Bunk <bunk@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0d135a4a

Documentation/parport-lowlevel.txt

+3 −26
Original line number Diff line number Diff line
@@ -25,7 +25,6 @@ Global functions: 
  parport_open

  parport_close

  parport_device_id

  parport_device_num

  parport_device_coords

  parport_find_class

  parport_find_device
@@ -735,7 +734,7 @@ NULL is returned. 


SEE ALSO



parport_register_device, parport_device_num

parport_register_device



parport_close - unregister device for particular device number

-------------
@@ -787,29 +786,7 @@ Many devices have ill-formed IEEE 1284 Device IDs. 


SEE ALSO



parport_find_class, parport_find_device, parport_device_num



parport_device_num - convert device coordinates to device number

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



SYNOPSIS



#include <linux/parport.h>



int parport_device_num (int parport, int mux, int daisy);



DESCRIPTION



Convert between device coordinates (port, multiplexor, daisy chain

address) and device number (zero-based).



RETURN VALUE



Device number, or -1 if no device at given coordinates.



SEE ALSO



parport_device_coords, parport_open, parport_device_id

parport_find_class, parport_find_device



parport_device_coords - convert device number to device coordinates

------------------
@@ -833,7 +810,7 @@ Zero on success, in which case the coordinates are (*parport, *mux, 


SEE ALSO



parport_device_num, parport_open, parport_device_id

parport_open, parport_device_id



parport_find_class - find a device by its class

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

drivers/parport/daisy.c

+0 −29
Original line number Diff line number Diff line
@@ -275,35 +275,6 @@ void parport_close(struct pardevice *dev) 
	parport_unregister_device(dev);

}



/**

 *	parport_device_num - convert device coordinates

 *	@parport: parallel port number

 *	@mux: multiplexor port number (-1 for no multiplexor)

 *	@daisy: daisy chain address (-1 for no daisy chain address)

 *

 *	This tries to locate a device on the given parallel port,

 *	multiplexor port and daisy chain address, and returns its

 *	device number or %-ENXIO if no device with those coordinates

 *	exists.

 **/



int parport_device_num(int parport, int mux, int daisy)

{

	int res = -ENXIO;

	struct daisydev *dev;



	spin_lock(&topology_lock);

	dev = topology;

	while (dev && dev->port->portnum != parport &&

	       dev->port->muxport != mux && dev->daisy != daisy)

		dev = dev->next;

	if (dev)

		res = dev->devnum;

	spin_unlock(&topology_lock);



	return res;

}



/* Send a daisy-chain-style CPP command packet. */

static int cpp_daisy(struct parport *port, int cmd)

{

drivers/parport/procfs.c

+5 −33
Original line number Diff line number Diff line
@@ -237,7 +237,7 @@ static int do_hardware_modes (ctl_table *table, int write, 
#define PARPORT_PARPORT_DIR(CHILD) { .ctl_name = DEV_PARPORT, .procname = "parport", \

                                     .mode = 0555, .child = CHILD }

#define PARPORT_DEV_DIR(CHILD) { .ctl_name = CTL_DEV, .procname = "dev", .mode = 0555, .child = CHILD }

#define PARPORT_DEVICES_ROOT_DIR  { .ctl_name = DEV_PARPORT_DEVICES, .procname = "devices", \

#define PARPORT_DEVICES_ROOT_DIR  {  .procname = "devices", \

                                    .mode = 0555, .child = NULL }



static const unsigned long parport_min_timeslice_value =
@@ -266,7 +266,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
	.sysctl_header = NULL,

        {

		{

			.ctl_name	= DEV_PARPORT_SPINTIME,

			.procname	= "spintime",

			.data		= NULL,

			.maxlen		= sizeof(int),
@@ -276,7 +275,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.extra2		= (void*) &parport_max_spintime_value

		},

		{

			.ctl_name	= DEV_PARPORT_BASE_ADDR,

			.procname	= "base-addr",

			.data		= NULL,

			.maxlen		= 0,
@@ -284,7 +282,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.proc_handler	= &do_hardware_base_addr

		},

		{

			.ctl_name	= DEV_PARPORT_IRQ,

			.procname	= "irq",

			.data		= NULL,

			.maxlen		= 0,
@@ -292,7 +289,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.proc_handler	= &do_hardware_irq

		},

		{

			.ctl_name	= DEV_PARPORT_DMA,

			.procname	= "dma",

			.data		= NULL,

			.maxlen		= 0,
@@ -300,7 +296,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.proc_handler	= &do_hardware_dma

		},

		{

			.ctl_name	= DEV_PARPORT_MODES,

			.procname	= "modes",

			.data		= NULL,

			.maxlen		= 0,
@@ -310,7 +305,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
		PARPORT_DEVICES_ROOT_DIR,

#ifdef CONFIG_PARPORT_1284

		{

			.ctl_name	= DEV_PARPORT_AUTOPROBE,

			.procname	= "autoprobe",

			.data		= NULL,

			.maxlen		= 0,
@@ -318,7 +312,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.proc_handler	= &do_autoprobe

		},

		{

			.ctl_name	= DEV_PARPORT_AUTOPROBE + 1,

			.procname	= "autoprobe0",

			.data		= NULL,

			.maxlen		= 0,
@@ -326,7 +319,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.proc_handler	=  &do_autoprobe

		},

		{

			.ctl_name	= DEV_PARPORT_AUTOPROBE + 2,

			.procname	= "autoprobe1",

			.data		= NULL,

			.maxlen		= 0,
@@ -334,7 +326,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.proc_handler	= &do_autoprobe

		},

		{

			.ctl_name	= DEV_PARPORT_AUTOPROBE + 3,

			.procname	= "autoprobe2",

			.data		= NULL,

			.maxlen		= 0,
@@ -342,7 +333,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
			.proc_handler	= &do_autoprobe

		},

		{

			.ctl_name	= DEV_PARPORT_AUTOPROBE + 4,

			.procname	= "autoprobe3",

			.data		= NULL,

			.maxlen		= 0,
@@ -354,7 +344,6 @@ static const struct parport_sysctl_table parport_sysctl_template = { 
	},

	{

		{

			.ctl_name	= DEV_PARPORT_DEVICES_ACTIVE,

			.procname	= "active",

			.data		= NULL,

			.maxlen		= 0,
@@ -393,7 +382,6 @@ parport_device_sysctl_template = { 
	.sysctl_header = NULL,

	{

		{

			.ctl_name 	= DEV_PARPORT_DEVICE_TIMESLICE,

			.procname 	= "timeslice",

			.data		= NULL,

			.maxlen		= sizeof(int),
@@ -449,7 +437,6 @@ parport_default_sysctl_table = { 
	.sysctl_header	= NULL,

	{

		{

			.ctl_name	= DEV_PARPORT_DEFAULT_TIMESLICE,

			.procname	= "timeslice",

			.data		= &parport_default_timeslice,

			.maxlen		= sizeof(parport_default_timeslice),
@@ -459,7 +446,6 @@ parport_default_sysctl_table = { 
			.extra2		= (void*) &parport_max_timeslice_value

		},

		{

			.ctl_name	= DEV_PARPORT_DEFAULT_SPINTIME,

			.procname	= "spintime",

			.data		= &parport_default_spintime,

			.maxlen		= sizeof(parport_default_spintime),
@@ -502,7 +488,7 @@ int parport_proc_register(struct parport *port) 


	t->device_dir[0].extra1 = port;



	for (i = 0; i < 8; i++)

	for (i = 0; i < 5; i++)

		t->vars[i].extra1 = port;



	t->vars[0].data = &port->spintime;
@@ -512,7 +498,7 @@ int parport_proc_register(struct parport *port) 
		t->vars[6 + i].extra2 = &port->probe_info[i];



	t->port_dir[0].procname = port->name;

	t->port_dir[0].ctl_name = port->number + 1; /* nb 0 isn't legal here */

	t->port_dir[0].ctl_name = 0;



	t->port_dir[0].child = t->vars;

	t->parport_dir[0].child = t->port_dir;
@@ -551,26 +537,12 @@ int parport_device_proc_register(struct pardevice *device) 
	t->dev_dir[0].child = t->parport_dir;

	t->parport_dir[0].child = t->port_dir;

	t->port_dir[0].procname = port->name;

	t->port_dir[0].ctl_name = port->number + 1; /* nb 0 isn't legal here */

	t->port_dir[0].ctl_name = 0;

	t->port_dir[0].child = t->devices_root_dir;

	t->devices_root_dir[0].child = t->device_dir;



#ifdef CONFIG_PARPORT_1284



	t->device_dir[0].ctl_name =

		parport_device_num(port->number, port->muxport,

				   device->daisy)

		+ 1;  /* nb 0 isn't legal here */ 



#else /* No IEEE 1284 support */



	/* parport_device_num isn't available. */

	t->device_dir[0].ctl_name = 1;

	

#endif /* IEEE 1284 support or not */



	t->device_dir[0].ctl_name = 0;

	t->device_dir[0].procname = device->name;

	t->device_dir[0].extra1 = device;

	t->device_dir[0].child = t->vars;

	t->vars[0].data = &device->timeslice;

include/linux/parport.h

+0 −1
Original line number Diff line number Diff line
@@ -510,7 +510,6 @@ extern struct pardevice *parport_open (int devnum, const char *name, 
				       int flags, void *handle);

extern void parport_close (struct pardevice *dev);

extern ssize_t parport_device_id (int devnum, char *buffer, size_t len);

extern int parport_device_num (int parport, int mux, int daisy);

extern void parport_daisy_deselect_all (struct parport *port);

extern int parport_daisy_select (struct parport *port, int daisy, int mode);