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| author |   John Ogness <john.ogness@linutronix.de> | 2024-12-16 18:18:41 +0106 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-23 18:59:59 +0100 |
| commit | c9f49e3e45fccae1841ae61bc5187fef18419ce6 (patch) | |
| tree | 28e1a1ce8562d39426a1130d7d25fa2d1650ca8e /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 8250: microchip: pci1xxxx: Add workaround for RTS bit toggle (diff) | |
| download | wireguard-linux-c9f49e3e45fccae1841ae61bc5187fef18419ce6.tar.xz wireguard-linux-c9f49e3e45fccae1841ae61bc5187fef18419ce6.zip | |
serial: 8250: Use @ier bits to determine if Rx is stopped
Commit f19c3f6c8109 ("serial: 8250_port: Don't service RX FIFO if
throttled") uses @read_status_mask (bit UART_LSR_DR) to determine
if Rx has been stopped. However, the bit UART_LSR_DR is not
managed properly in @read_status_mask for all Rx stop/start
situations and is therefore not suitable for this purpose.
Use the UART_IER_RLSI and UART_IER_RDI bits in @ier instead, as
this is already common in 8250-variants and drivers.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Link: https://lore.kernel.org/r/20241216171244.12783-2-john.ogness@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions