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From: Johannes Berg <johannes@sipsolutions.net>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: Kalle Valo <kvalo@kernel.org>,
	ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
	Jeff Johnson <quic_jjohnson@quicinc.com>
Subject: Re: [PATCH] wifi: ath10k: prefer stack-allocated __le32 variables
Date: Fri, 27 Oct 2023 11:53:26 +0200	[thread overview]
Message-ID: <8d5af24635501d1ae2e0a54f7196fc476241f894.camel@sipsolutions.net> (raw)
In-Reply-To: <79560f97-4f42-455d-9031-a2c1eed736e0@yandex.ru>

On Fri, 2023-10-27 at 12:50 +0300, Dmitry Antipov wrote:


> Locals can't be used for scatterlists/DMA/etc., right?

Well, a scatterlist by itself doesn't imply anything necessarily, it's
just a data structure.

But yes, you cannot do DMA from the stack, which seems to happen in this
case, or at least can happen.

johannes

      reply	other threads:[~2023-10-27  9:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-27  8:23 [PATCH] wifi: ath10k: prefer stack-allocated __le32 variables Dmitry Antipov
2023-10-27  9:08 ` Johannes Berg
2023-10-27  9:50   ` Dmitry Antipov
2023-10-27  9:53     ` Johannes Berg [this message]

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