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From: Frank Li <Frank.li@oss.nxp.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: dmaengine@vger.kernel.org, Binbin Zhou <zhoubinbin@loongson.cn>,
	Vinod Koul <vkoul@kernel.org>, Frank Li <Frank.Li@kernel.org>
Subject: Re: [PATCH] dmaengine: loongson: Use %p for pointer formatting
Date: Fri, 18 Sep 2026 12:06:41 -0500	[thread overview]
Message-ID: <aq1voagTv1oJ8FaA@SMW015318> (raw)
In-Reply-To: <20260918103409.UV4g2ON7@linutronix.de>

On Fri, Sep 18, 2026 at 12:34:09PM +0200, Sebastian Andrzej Siewior wrote:
> The %pK format modifier was meant for /proc kind of output, not general
> printk output. Since commit ad67b74d2469d ("printk: hash addresses
> printed with %p") pointers are hashed by default and the behaviour can
> be controller by `hash_pointers' boot argument.
> The policy on %p is to not introduce new ones. This is the only pointer
> output in the driver.
>
> Remove the pointer formating from debug output.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
>  drivers/dma/loongson/loongson2-apb-cmc-dma.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/dma/loongson/loongson2-apb-cmc-dma.c b/drivers/dma/loongson/loongson2-apb-cmc-dma.c
> index 1c9a542edc859..27f8f7a5738d9 100644
> --- a/drivers/dma/loongson/loongson2-apb-cmc-dma.c
> +++ b/drivers/dma/loongson/loongson2-apb-cmc-dma.c
> @@ -337,7 +337,6 @@ static void loongson2_cmc_dma_issue_pending(struct dma_chan *chan)
>  	guard(spinlock_irqsave)(&lchan->vchan.lock);
>
>  	if (vchan_issue_pending(&lchan->vchan) && !lchan->desc) {
> -		dev_dbg(chan2dev(lchan), "vchan %pK: issued\n", &lchan->vchan);

You remove whole dev_dbg(), but commit message said Use %p

Frank
>  		loongson2_cmc_dma_start_transfer(lchan);
>  	}
>  }
> --
> 2.55.0
>

  reply	other threads:[~2026-09-18 17:06 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-18 10:34 [PATCH] dmaengine: loongson: Use %p for pointer formatting Sebastian Andrzej Siewior
2026-09-18 17:06 ` Frank Li [this message]
2026-09-18 17:17   ` Sebastian Andrzej Siewior
2026-09-18 19:44     ` Frank Li

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