On 02/08/2018 10:33 PM, Marc Kleine-Budde wrote: > On 02/08/2018 08:22 PM, Marek Vasut wrote: >> On 02/08/2018 03:46 PM, Marc Kleine-Budde wrote: >>> On 02/08/2018 07:47 AM, Heiko Schocher wrote: >>>> the driver reads in the ISR first the IRQpending register, >>>> and clears after that in a write *all* bits in it. >>>> >>>> It could happen that the isr register raise bits between >>>> this 2 register accesses, which leads in lost bits ... >>>> >>>> In case it clears "TX message sent successfully", the driver >>>> never sends any Tx data, and buffers to userspace run over. >>>> >>>> Fixed this: >>>> clear only the bits in the IRQpending register, the >>>> driver had read. >>>> >>>> Signed-off-by: Heiko Schocher <h...@denx.de> >>>> Reviewed-by: Marek Vasut <ma...@denx.de> >>> >>> Applied both to linux-can. >> >> Can you also apply them to stable, so they get into 4.9.x etc ? > > I've already added stable on Cc, so they will be picked up by the stable > maintainers.
Thanks! -- Best regards, Marek Vasut
