On Thu, Aug 25, 2022 at 12:19 PM Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> wrote: > > Add uart_xmit_advance() helper to handle circular xmit buffer > advancement + accounting of Tx'ed bytes. Use it to fix a few drivers > that previously lacked to accounting for DMA Tx. For the whole series Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> Thanks for fixing this issue. > Greg, > I've a another series on top this which is tty-next material making the > rest of the drivers to use uart_xmit_advance(). That series obviously > depends on the patch 1/3 of this series so if you end up putting these > 3 patches into tty-linus, I'll need it to be merged into tty-next at > some point (I'm not in a big hurry with this so if you choose to delay > the merge, it's not a big deal). > > Ilpo Järvinen (3): > serial: Create uart_xmit_advance() > serial: tegra: Use uart_xmit_advance(), fixes icount.tx accounting > serial: tegra-tcu: Use uart_xmit_advance(), fixes icount.tx accounting > > drivers/tty/serial/serial-tegra.c | 5 ++--- > drivers/tty/serial/tegra-tcu.c | 2 +- > include/linux/serial_core.h | 17 +++++++++++++++++ > 3 files changed, 20 insertions(+), 4 deletions(-) > > -- > 2.30.2 > -- With Best Regards, Andy Shevchenko