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serial: core: introduce uart_port_tx_limited_flags()

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commit 9bb43b9e8d upstream.

Analogue to uart_port_tx_flags() introduced in commit 3ee07964d4
("serial: core: introduce uart_port_tx_flags()"), add a _flags variant
for uart_port_tx_limited().

Fixes: d11cc8c3c4 ("tty: serial: use uart_port_tx_limited()")
Cc: stable@vger.kernel.org
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Doug Brown <doug@schmorgal.com>
Link: https://lore.kernel.org/r/20240606195632.173255-3-doug@schmorgal.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jonas Gorski 2024-06-06 12:56:32 -07:00 committed by Greg Kroah-Hartman
parent d75b8ae150
commit 60dc1a2a3f
1 changed files with 18 additions and 0 deletions
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18
include/linux/serial_core.h
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@ -826,6 +826,24 @@ enum UART_TX_FLAGS {
__count--); \ __count--); \
}) })
/**
* uart_port_tx_limited_flags -- transmit helper for uart_port with count limiting with flags
* @port: uart port
* @ch: variable to store a character to be written to the HW
* @flags: %UART_TX_NOSTOP or similar
* @count: a limit of characters to send
* @tx_ready: can HW accept more data function
* @put_char: function to write a character
* @tx_done: function to call after the loop is done
*
* See uart_port_tx_limited() for more details.
*/
#define uart_port_tx_limited_flags(port, ch, flags, count, tx_ready, put_char, tx_done) ({ \
unsigned int __count = (count); \
__uart_port_tx(port, ch, flags, tx_ready, put_char, tx_done, __count, \
__count--); \
})
/** /**
* uart_port_tx -- transmit helper for uart_port * uart_port_tx -- transmit helper for uart_port
* @port: uart port * @port: uart port