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Re: [PATCH] ath10k: Do not call dma_alloc_coherent() for SDIO and USB

To: Arend van Spriel <aspriel@xxxxxxxxx>, Fabio Estevam <festevam@xxxxxxx>, kvalo@xxxxxxxxxxxxxx
Subject: Re: [PATCH] ath10k: Do not call dma_alloc_coherent() for SDIO and USB
From: Peter Oh <peter.oh@xxxxxxxx>
Date: Wed, 18 Aug 2021 10:30:36 -0700
Cc: ath10k@xxxxxxxxxxxxxxxxxxx, linux-wireless@xxxxxxxxxxxxxxx, hch@xxxxxx, erik.stromdahl@xxxxxxxxx
In-reply-to: <17b5a29d098.279b.9696ff82abe5fb6502268bdc3b0467d4@gmail.com>
References: <20210818150943.1630199-1-festevam@denx.de> <17b5a29d098.279b.9696ff82abe5fb6502268bdc3b0467d4@gmail.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

Fix the problem by not calling dma_alloc_coherent() when the device
is not DMA capable, such as SDIO and USB.

ath10k calls dma_alloc_coherent multiple places includingath10k_htt_rx_alloc.


Do SDIO and USB not use such data path function at all?

Thanks,

Peter

Follow-Ups:
- Re: [PATCH] ath10k: Do not call dma_alloc_coherent() for SDIO and USB
  - From: Fabio Estevam
- Re: [PATCH] ath10k: Do not call dma_alloc_coherent() for SDIO and USB
  - From: Fabio Estevam

References:
- [PATCH] ath10k: Do not call dma_alloc_coherent() for SDIO and USB
  - From: Fabio Estevam
- Re: [PATCH] ath10k: Do not call dma_alloc_coherent() for SDIO and USB
  - From: Arend van Spriel