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authorIlpo Järvinen <ilpo.jarvinen@linux.intel.com>2022-11-25 16:05:05 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-19 17:01:19 +0300
commitd9c1d3cbdeec94f077679b73ed5ce3a4fe4bf4b8 (patch)
tree5987b0bf061ca7c5c1a0b69236f1b2fb1f3cb2cd /include/linux/serial.h
parentef460db2a7c1df5eda2ea6011e7586e54e23b8c4 (diff)
downloadlinux-d9c1d3cbdeec94f077679b73ed5ce3a4fe4bf4b8.tar.xz
serial: 8250: Name MSR literals
Add UART_MSR_STATUS_BITS for CD, RI, DSR & CTS. Use names for the literal. Don't make the define for combined flags part of UAPI. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20221125130509.8482-3-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/serial.h')
-rw-r--r--include/linux/serial.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h
index ad6e1c37e2d5..bfda927dde15 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -28,6 +28,11 @@ static inline bool uart_lsr_tx_empty(u16 lsr)
return (lsr & UART_LSR_BOTH_EMPTY) == UART_LSR_BOTH_EMPTY;
}
+#define UART_MSR_STATUS_BITS (UART_MSR_DCD | \
+ UART_MSR_RI | \
+ UART_MSR_DSR | \
+ UART_MSR_CTS)
+
/*
* Counters of the input lines (CTS, DSR, RI, CD) interrupts
*/