2020-06-05 12:58:08

by Frank Lee

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Subject: [PATCH 1/2] mmc: sunxi-mmc: do not hide address in sunxi_mmc_irq()

From: Yangtao Li <[email protected]>

Using %px to show the actual address in sunxi_mmc_irq()
to help us to debug issue.

Signed-off-by: Yangtao Li <[email protected]>
Signed-off-by: Frank Lee <[email protected]>
---
drivers/mmc/host/sunxi-mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 5e95bbc51644..dcd30c3e1fac 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -574,7 +574,7 @@ static irqreturn_t sunxi_mmc_irq(int irq, void *dev_id)
idma_int = mmc_readl(host, REG_IDST);
msk_int = mmc_readl(host, REG_MISTA);

- dev_dbg(mmc_dev(host->mmc), "irq: rq %p mi %08x idi %08x\n",
+ dev_dbg(mmc_dev(host->mmc), "irq: rq %px mi %08x idi %08x\n",
host->mrq, msk_int, idma_int);

mrq = host->mrq;
--
2.24.0


2020-06-05 15:20:42

by Maxime Ripard

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Subject: Re: [PATCH 1/2] mmc: sunxi-mmc: do not hide address in sunxi_mmc_irq()

Hi,

On Fri, Jun 05, 2020 at 08:55:44PM +0800, Frank Lee wrote:
> From: Yangtao Li <[email protected]>
>
> Using %px to show the actual address in sunxi_mmc_irq()
> to help us to debug issue.
>
> Signed-off-by: Yangtao Li <[email protected]>
> Signed-off-by: Frank Lee <[email protected]>

I'm fairly sure this hash is on purpose, and both the commit log of the
%px introduction (ad67b74d2469) and the checkpatch message are pretty
explicit about it.

What issue were you trying to solve here?

Maxime


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2020-06-08 12:59:10

by Frank Lee

[permalink] [raw]
Subject: Re: [PATCH 1/2] mmc: sunxi-mmc: do not hide address in sunxi_mmc_irq()

On Fri, Jun 5, 2020 at 11:18 PM Maxime Ripard <[email protected]> wrote:
>
> Hi,
>
> On Fri, Jun 05, 2020 at 08:55:44PM +0800, Frank Lee wrote:
> > From: Yangtao Li <[email protected]>
> >
> > Using %px to show the actual address in sunxi_mmc_irq()
> > to help us to debug issue.
> >
> > Signed-off-by: Yangtao Li <[email protected]>
> > Signed-off-by: Frank Lee <[email protected]>
>
> I'm fairly sure this hash is on purpose, and both the commit log of the
> %px introduction (ad67b74d2469) and the checkpatch message are pretty
> explicit about it.
>
> What issue were you trying to solve here?

There doesn't seem to be a strong requirement to force this to be printed out,
I just think that ____ptrval____ is very unpleasant.

Or delete %p directly?

Yangtao

2020-06-09 16:07:43

by Maxime Ripard

[permalink] [raw]
Subject: Re: [PATCH 1/2] mmc: sunxi-mmc: do not hide address in sunxi_mmc_irq()

On Mon, Jun 08, 2020 at 08:54:51PM +0800, Frank Lee wrote:
> On Fri, Jun 5, 2020 at 11:18 PM Maxime Ripard <[email protected]> wrote:
> >
> > Hi,
> >
> > On Fri, Jun 05, 2020 at 08:55:44PM +0800, Frank Lee wrote:
> > > From: Yangtao Li <[email protected]>
> > >
> > > Using %px to show the actual address in sunxi_mmc_irq()
> > > to help us to debug issue.
> > >
> > > Signed-off-by: Yangtao Li <[email protected]>
> > > Signed-off-by: Frank Lee <[email protected]>
> >
> > I'm fairly sure this hash is on purpose, and both the commit log of the
> > %px introduction (ad67b74d2469) and the checkpatch message are pretty
> > explicit about it.
> >
> > What issue were you trying to solve here?
>
> There doesn't seem to be a strong requirement to force this to be printed out,
> I just think that ____ptrval____ is very unpleasant.

That should happen only at boot when the system doesn't have enough
entropy iirc, after a while it prints out hashes.

> Or delete %p directly?

You mean the message in the driver? I'd be fine with that too.

Maxime


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