ath10k: dma unmap mgmt tx buffer if wmi cmd send fails

[Kalle Valo]

Rakesh Pillai <pillair at codeaurora.org> wrote:

> WCN3990 sends mgmt frames by reference via WMI.
> The host dma maps the mgmt frame and sends the physical
> address to the firmware in the wmi command. Since the
> dma mapping is done in the gen_mgmt_tx and if the wmi
> command send fails, the corresponding mgmt frame is
> not being dma unmapped.
> 
> Fix the missing dma unmapping of mgmt tx frame when
> wmi command sending fails for mgmt tx by reference
> via WMI. The already exisiting mgmt tx using copy by
> value does not need such dma unmapping.
> Add a separate wmi-tlv op for mgmt tx via ref, which
> takes care of unmapping the dma address, in case of
> wmi command sending failure.
> 
> Signed-off-by: Rakesh Pillai <pillair at codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo at codeaurora.org>

Patch applied to ath-next branch of ath.git, thanks.

38a1390e02b7 ath10k: dma unmap mgmt tx buffer if wmi cmd send fails

-- 
https://patchwork.kernel.org/patch/10208681/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches