diff options
| author | John Ogness <john.ogness@linutronix.de> | 2024-12-16 18:18:42 +0106 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-23 18:59:59 +0100 |
| commit | 9d31746b5385c3f760746f7b2d63b702e2f80de0 (patch) | |
| tree | a347cf983395279881be69397eb0c716a0636d68 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | c9f49e3e45fccae1841ae61bc5187fef18419ce6 (diff) | |
serial: 8250: Do not set UART_LSR_THRE in @read_status_mask
Since Linux 2.1.8 @read_status_mask is no longer used as a
general control of which bits are used from the LSR register.
Instead it has become an additional mask applied to
@ignore_status_mask. Since UART_LSR_THRE is never set for
@ignore_status_mask, it serves no purpose to set it for
@read_status_mask. In fact, it propagates the misconception
that @read_status_mask can be used as a general mask for LSR
bits.
Do not set UART_LSR_THRE for @read_status_mask.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Link: https://lore.kernel.org/r/20241216171244.12783-3-john.ogness@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions