dmaengine Archive on lore.kernel.org
 help / color / Atom feed
From: Robert Jarzmik <robert.jarzmik@free.fr>
To: Barry Song <song.bao.hua@hisilicon.com>
Cc: <vkoul@kernel.org>, <dmaengine@vger.kernel.org>,
	Daniel Mack <daniel@zonque.org>,
	Haojian Zhuang <haojian.zhuang@gmail.com>
Subject: Re: [PATCH 10/10] dmaengine: pxa_dma: remove redundant irqsave and irqrestore in hardIRQ
Date: Fri, 23 Oct 2020 22:16:55 +0200
Message-ID: <87sga4wvd4.fsf@belgarion.home> (raw)
In-Reply-To: <20201015235921.21224-11-song.bao.hua@hisilicon.com> (Barry Song's message of "Fri, 16 Oct 2020 12:59:21 +1300")

Barry Song <song.bao.hua@hisilicon.com> writes:

> Running in hardIRQ, disabling IRQ is redundant.
>
> Cc: Daniel Mack <daniel@zonque.org>
> Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
> Cc: Robert Jarzmik <robert.jarzmik@free.fr>
> Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Why not.
I would have liked a longer commit message to explain the reason of the patch,
which probably is a performance optimization (ie. not disabling twice IRQs).

Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>

--
Robert

      reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-15 23:59 [PATCH 00/10] dmaengine: a bundle of cleanup on spin_lock_irqsave/irqrestore Barry Song
2020-10-15 23:59 ` [PATCH 01/10] dmaengine: ipu_idmac: remove redundant irqsave and restore in hardIRQ Barry Song
2020-10-15 23:59 ` [PATCH 02/10] dmaengine: k3-udma: remove redundant irqsave and irqrestore " Barry Song
2020-10-19 13:45   ` Peter Ujfalusi
2020-10-15 23:59 ` [PATCH 03/10] dmaengine: sf-pdma: " Barry Song
2020-10-15 23:59 ` [PATCH 04/10] dmaengine: tegra210-adma: " Barry Song
2020-10-19 10:31   ` Jon Hunter
2020-10-15 23:59 ` [PATCH 05/10] dmaengine: milbeaut-xdmac: " Barry Song
2020-10-15 23:59 ` [PATCH 06/10] dmaengine: k3dma: " Barry Song
2020-10-15 23:59 ` [PATCH 07/10] dmaengine: hisi_dma: " Barry Song
2020-10-26  1:23   ` Zhou Wang
2020-10-15 23:59 ` [PATCH 08/10] dmaengine: moxart-dma: " Barry Song
2020-10-15 23:59 ` [PATCH 09/10] dmaengine: ste_dma40: " Barry Song
2020-10-29 14:01   ` Linus Walleij
2020-10-29 20:58     ` Song Bao Hua (Barry Song)
2020-10-15 23:59 ` [PATCH 10/10] dmaengine: pxa_dma: " Barry Song
2020-10-23 20:16   ` Robert Jarzmik [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87sga4wvd4.fsf@belgarion.home \
    --to=robert.jarzmik@free.fr \
    --cc=daniel@zonque.org \
    --cc=dmaengine@vger.kernel.org \
    --cc=haojian.zhuang@gmail.com \
    --cc=song.bao.hua@hisilicon.com \
    --cc=vkoul@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

dmaengine Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/dmaengine/0 dmaengine/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dmaengine dmaengine/ https://lore.kernel.org/dmaengine \
		dmaengine@vger.kernel.org
	public-inbox-index dmaengine

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.dmaengine


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git