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staging: unisys: visorbus: Convert references to /proc to /sys 

Removes references to visorchipset in the /proc filesystem, and replaces
them with references to the /sys filesystem. Also removes reference to the
visorchipset driver, and replaces it with a reference to plain
visorchipset (since it is no longer a standalone driver).

Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
David Binder 2016-12-22 11:09:02 -05:00 committed by Greg Kroah-Hartman
parent 22da2c1231
commit 5d501ef440
1 changed files with 14 additions and 13 deletions
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27
drivers/staging/unisys/visorbus/visorchipset.c
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@ -1159,23 +1159,24 @@ initialize_controlvm_payload(void)
}
/*
* The general parahotplug flow works as follows. The visorchipset
* driver receives a DEVICE_CHANGESTATE message from Command
* specifying a physical device to enable or disable. The CONTROLVM
* message handler calls parahotplug_process_message, which then adds
* the message to a global list and kicks off a udev event which
* causes a user level script to enable or disable the specified
* device. The udev script then writes to
* /proc/visorchipset/parahotplug, which causes parahotplug_proc_write
* to get called, at which point the appropriate CONTROLVM message is
* retrieved from the list and responded to.
* The general parahotplug flow works as follows. The visorchipset receives
* a DEVICE_CHANGESTATE message from Command specifying a physical device
* to enable or disable. The CONTROLVM message handler calls
* parahotplug_process_message, which then adds the message to a global list
* and kicks off a udev event which causes a user level script to enable or
* disable the specified device. The udev script then writes to
* /sys/devices/platform/visorchipset/parahotplug, which causes the
* parahotplug store functions to get called, at which point the
* appropriate CONTROLVM message is retrieved from the list and responded
* to.
*/
#define PARAHOTPLUG_TIMEOUT_MS 2000
/**
* parahotplug_next_id() - generate unique int to match an outstanding CONTROLVM
* message with a udev script /proc response
* parahotplug_next_id() - generate unique int to match an outstanding
* CONTROLVM message with a udev script /sys
* response
*
* Return: a unique integer value
*/
@ -1242,7 +1243,7 @@ static DEFINE_SPINLOCK(parahotplug_request_list_lock); /* lock for above */
* @id: the id of the request
* @active: indicates whether the request is assigned to active partition
*
* Called from the /proc handler, which means the user script has
* Called from the /sys handler, which means the user script has
* finished the enable/disable. Find the matching identifier, and
* respond to the CONTROLVM message with success.
*