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tty: reformat kernel-doc in tty_port.c
Kernel-doc is a bit strict about some formatting. So fix these: 1) When there is a tab in comments, it thinks the line is a continuation one. So the description of the functions end up as descriptions of the last parameter described. Remove the tabs. 2) Remove newlines before parameters description. This was not wrong per se, only inconsistent with the rest of the file. 3) Add periods to the end of sentences where appropriate. 4) Use recognized "Note" instead of "NB" (nota bene). 5) Add "()" to function names and "%" to constants, so that they are properly highlighted. By the above, this patch also unifies these docs with the other kernel-doc's in this file. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20211126081611.11001-12-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby
Greg Kroah-Hartman
parent
34d809f8b4
commit
cb6f6f9877
@ -82,9 +82,9 @@ EXPORT_SYMBOL(tty_port_init);
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* @index: index of the tty
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*
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* Provide the tty layer with a link from a tty (specified by @index) to a
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* tty_port (@port). Use this only if neither tty_port_register_device nor
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* tty_port_install is used in the driver. If used, this has to be called before
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* tty_register_driver.
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* tty_port (@port). Use this only if neither tty_port_register_device() nor
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* tty_port_install() is used in the driver. If used, this has to be called
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* before tty_register_driver().
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*/
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void tty_port_link_device(struct tty_port *port,
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struct tty_driver *driver, unsigned index)
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@ -102,9 +102,9 @@ EXPORT_SYMBOL_GPL(tty_port_link_device);
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* @index: index of the tty
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* @device: parent if exists, otherwise NULL
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*
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* It is the same as tty_register_device except the provided @port is linked to
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* a concrete tty specified by @index. Use this or tty_port_install (or both).
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* Call tty_port_link_device as a last resort.
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* It is the same as tty_register_device() except the provided @port is linked
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* to a concrete tty specified by @index. Use this or tty_port_install() (or
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* both). Call tty_port_link_device() as a last resort.
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*/
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struct device *tty_port_register_device(struct tty_port *port,
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struct tty_driver *driver, unsigned index,
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@ -123,9 +123,9 @@ EXPORT_SYMBOL_GPL(tty_port_register_device);
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* @drvdata: Driver data to be set to device.
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* @attr_grp: Attribute group to be set on device.
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*
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* It is the same as tty_register_device_attr except the provided @port is
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* linked to a concrete tty specified by @index. Use this or tty_port_install
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* (or both). Call tty_port_link_device as a last resort.
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* It is the same as tty_register_device_attr() except the provided @port is
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* linked to a concrete tty specified by @index. Use this or tty_port_install()
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* (or both). Call tty_port_link_device() as a last resort.
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*/
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struct device *tty_port_register_device_attr(struct tty_port *port,
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struct tty_driver *driver, unsigned index,
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@ -240,9 +240,9 @@ EXPORT_SYMBOL(tty_port_free_xmit_buf);
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* tty_port_destroy -- destroy inited port
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* @port: tty port to be destroyed
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*
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* When a port was initialized using tty_port_init, one has to destroy the
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* port by this function. Either indirectly by using tty_port refcounting
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* (tty_port_put) or directly if refcounting is not used.
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* When a port was initialized using tty_port_init(), one has to destroy the
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* port by this function. Either indirectly by using &tty_port refcounting
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* (tty_port_put()) or directly if refcounting is not used.
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*/
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void tty_port_destroy(struct tty_port *port)
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{
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@ -278,8 +278,8 @@ EXPORT_SYMBOL(tty_port_put);
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* tty_port_tty_get - get a tty reference
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* @port: tty port
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*
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* Return a refcount protected tty instance or NULL if the port is not
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* associated with a tty (eg due to close or hangup)
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* Return a refcount protected tty instance or %NULL if the port is not
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* associated with a tty (eg due to close or hangup).
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*/
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struct tty_struct *tty_port_tty_get(struct tty_port *port)
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{
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@ -298,8 +298,8 @@ EXPORT_SYMBOL(tty_port_tty_get);
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* @port: tty port
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* @tty: the tty
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*
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* Associate the port and tty pair. Manages any internal refcounts.
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* Pass NULL to deassociate a port
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* Associate the port and tty pair. Manages any internal refcounts. Pass %NULL
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* to deassociate a port.
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*/
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void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty)
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{
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@ -365,9 +365,8 @@ EXPORT_SYMBOL(tty_port_hangup);
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/**
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* tty_port_tty_hangup - helper to hang up a tty
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*
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* @port: tty port
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* @check_clocal: hang only ttys with CLOCAL unset?
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* @check_clocal: hang only ttys with %CLOCAL unset?
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*/
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void tty_port_tty_hangup(struct tty_port *port, bool check_clocal)
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{
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@ -381,7 +380,6 @@ EXPORT_SYMBOL_GPL(tty_port_tty_hangup);
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/**
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* tty_port_tty_wakeup - helper to wake up a tty
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*
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* @port: tty port
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*/
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void tty_port_tty_wakeup(struct tty_port *port)
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@ -410,9 +408,9 @@ EXPORT_SYMBOL(tty_port_carrier_raised);
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* tty_port_raise_dtr_rts - Raise DTR/RTS
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* @port: tty port
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*
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* Wrapper for the DTR/RTS raise logic. For the moment this is used
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* to hide some internal details. This will eventually become entirely
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* internal to the tty port.
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* Wrapper for the DTR/RTS raise logic. For the moment this is used to hide
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* some internal details. This will eventually become entirely internal to the
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* tty port.
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*/
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void tty_port_raise_dtr_rts(struct tty_port *port)
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{
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@ -425,9 +423,9 @@ EXPORT_SYMBOL(tty_port_raise_dtr_rts);
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* tty_port_lower_dtr_rts - Lower DTR/RTS
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* @port: tty port
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*
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* Wrapper for the DTR/RTS raise logic. For the moment this is used
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* to hide some internal details. This will eventually become entirely
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* internal to the tty port.
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* Wrapper for the DTR/RTS raise logic. For the moment this is used to hide
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* some internal details. This will eventually become entirely internal to the
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* tty port.
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*/
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void tty_port_lower_dtr_rts(struct tty_port *port)
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{
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@ -440,25 +438,26 @@ EXPORT_SYMBOL(tty_port_lower_dtr_rts);
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* tty_port_block_til_ready - Waiting logic for tty open
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* @port: the tty port being opened
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* @tty: the tty device being bound
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* @filp: the file pointer of the opener or NULL
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* @filp: the file pointer of the opener or %NULL
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*
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* Implement the core POSIX/SuS tty behaviour when opening a tty device.
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* Handles:
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*
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* - hangup (both before and during)
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* - non blocking open
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* - rts/dtr/dcd
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* - signals
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* - port flags and counts
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*
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* The passed tty_port must implement the carrier_raised method if it can
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* do carrier detect and the dtr_rts method if it supports software
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* management of these lines. Note that the dtr/rts raise is done each
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* The passed @port must implement the @port->ops->carrier_raised method if it
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* can do carrier detect and the @port->ops->dtr_rts method if it supports
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* software management of these lines. Note that the dtr/rts raise is done each
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* iteration as a hangup may have previously dropped them while we wait.
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*
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* Caller holds tty lock.
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*
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* NB: May drop and reacquire tty lock when blocking, so tty and tty_port
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* may have changed state (eg., may have been hung up).
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* Note: May drop and reacquire tty lock when blocking, so @tty and @port may
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* have changed state (eg., may have been hung up).
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*/
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int tty_port_block_til_ready(struct tty_port *port,
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struct tty_struct *tty, struct file *filp)
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@ -628,10 +627,18 @@ void tty_port_close_end(struct tty_port *port, struct tty_struct *tty)
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}
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EXPORT_SYMBOL(tty_port_close_end);
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/*
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* tty_port_close
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/**
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* tty_port_close - generic tty->ops->close handler
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* @port: tty_port of the device
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* @tty: tty being closed
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* @filp: passed file pointer
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*
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* Caller holds tty lock
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* It is a generic helper to be used in driver's @tty->ops->close. It wraps a
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* sequence of tty_port_close_start(), tty_port_shutdown(), and
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* tty_port_close_end(). The latter two are called only if this is the last
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* close. See the respective functions for the details.
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*
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* Locking: Caller holds tty lock
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*/
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void tty_port_close(struct tty_port *port, struct tty_struct *tty,
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struct file *filp)
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@ -652,9 +659,9 @@ EXPORT_SYMBOL(tty_port_close);
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* @driver: tty_driver for this device
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* @tty: tty to be installed
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*
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* It is the same as tty_standard_install except the provided @port is linked
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* to a concrete tty specified by @tty. Use this or tty_port_register_device
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* (or both). Call tty_port_link_device as a last resort.
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* It is the same as tty_standard_install() except the provided @port is linked
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* to a concrete tty specified by @tty. Use this or tty_port_register_device()
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* (or both). Call tty_port_link_device() as a last resort.
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*/
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int tty_port_install(struct tty_port *port, struct tty_driver *driver,
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struct tty_struct *tty)
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@ -664,13 +671,21 @@ int tty_port_install(struct tty_port *port, struct tty_driver *driver,
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}
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EXPORT_SYMBOL_GPL(tty_port_install);
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/*
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* tty_port_open
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/**
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* tty_port_open - generic tty->ops->open handler
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* @port: tty_port of the device
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* @tty: tty to be opened
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* @filp: passed file pointer
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*
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* Caller holds tty lock.
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* It is a generic helper to be used in driver's @tty->ops->open. It activates
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* the devices using @port->ops->activate if not active already. And waits for
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* the device to be ready using tty_port_block_til_ready() (e.g. raises
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* DTR/CTS and waits for carrier).
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*
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* NB: may drop and reacquire tty lock (in tty_port_block_til_ready()) so
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* tty and tty_port may have changed state (eg., may be hung up now)
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* Locking: Caller holds tty lock.
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*
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* Note: may drop and reacquire tty lock (in tty_port_block_til_ready()) so
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* @tty and @port may have changed state (eg., may be hung up now).
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*/
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int tty_port_open(struct tty_port *port, struct tty_struct *tty,
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struct file *filp)
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