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    Subject[PATCH 0/3] serial: Add uart_xmit_advance() + fixes part (of a larger patch series)
    Date
    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.

    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

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