[PATCH 1/6] net: dwc_eth_qos: Fully rewrite RX descriptor field 3

[Patrick DELAUNAY]

Dear Marek,

> From: Marek Vasut <marex at denx.de>
> Sent: lundi 23 mars 2020 02:45
> 
> The RX descriptor field 3 should contain only OWN and BUF1V bits before being
> used for receiving data by the DMA engine. However, right now, if the descriptor
> was already used for receiving data and is being cleared, the field 3 is only
> modified and the aforementioned two bits are ORRed into the field. This could lead
> to a residual dirty bits being left in the field 3 from previous transfer, and it
> generally does. Fully set the field 3 instead to clear those residual dirty bits.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Joe Hershberger <joe.hershberger at ni.com>
> Cc: Patrice Chotard <patrice.chotard at st.com>
> Cc: Patrick Delaunay <patrick.delaunay at st.com>
> Cc: Ramon Fried <rfried.dev at gmail.com>
> Cc: Stephen Warren <swarren at nvidia.com>
> ---
>  drivers/net/dwc_eth_qos.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c index
> 0564bebf76..4bce6d4290 100644
> --- a/drivers/net/dwc_eth_qos.c

Reviewed-by: Patrick Delaunay <patrick.delaunay at st.com>

Thanks

Patrick