6.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jonas Gorski <jonas.gorski@xxxxxxxxx>
commit 9bb43b9e8d9a288a214e9b17acc9e46fda3977cf upstream.
Analogue to uart_port_tx_flags() introduced in commit 3ee07964d407
("serial: core: introduce uart_port_tx_flags()"), add a _flags variant
for uart_port_tx_limited().
Fixes: d11cc8c3c4b6 ("tty: serial: use uart_port_tx_limited()")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jonas Gorski <jonas.gorski@xxxxxxxxx>
Signed-off-by: Doug Brown <doug@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240606195632.173255-3-doug@xxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/serial_core.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -829,6 +829,24 @@ enum UART_TX_FLAGS {
})
/**
+ * 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
* @port: uart port
* @ch: variable to store a character to be written to the HW
