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| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-06-24 23:42:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-27 14:44:20 +0200 |
| commit | f8ba5680a56be696b3f4343ed0a591abab807da4 (patch) | |
| tree | 383b12e17a41744667e77dd492fa2e93a8947075 /include/linux | |
| parent | 34619de1b8cb52afa90bbeb3b4fbad34c28f19cf (diff) | |
| download | lwn-f8ba5680a56be696b3f4343ed0a591abab807da4.tar.gz lwn-f8ba5680a56be696b3f4343ed0a591abab807da4.zip | |
serial: 8250: make saved LSR larger
DW flags address received as BIT(8) in LSR. In order to not lose that
on read, enlarge lsr_saved_flags to u16.
Adjust lsr/status variables and related call chains to use u16.
Technically, some of these type conversion would not be needed but it
doesn't hurt to be consistent.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220624204210.11112-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/serial_8250.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index ff84a3ed10ea..4565f25ba9a2 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -119,7 +119,7 @@ struct uart_8250_port { * be immediately processed. */ #define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS - unsigned char lsr_saved_flags; + u16 lsr_saved_flags; #define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA unsigned char msr_saved_flags; @@ -170,8 +170,8 @@ extern void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud, unsigned int quot_frac); extern int fsl8250_handle_irq(struct uart_port *port); int serial8250_handle_irq(struct uart_port *port, unsigned int iir); -unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr); -void serial8250_read_char(struct uart_8250_port *up, unsigned char lsr); +u16 serial8250_rx_chars(struct uart_8250_port *up, u16 lsr); +void serial8250_read_char(struct uart_8250_port *up, u16 lsr); void serial8250_tx_chars(struct uart_8250_port *up); unsigned int serial8250_modem_status(struct uart_8250_port *up); void serial8250_init_port(struct uart_8250_port *up); |