All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Alexander Dahl <ada@thorsis.com>
Cc: netdev@vger.kernel.org, Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] net: phy: adin1100: Simplify register value passing
Date: Wed, 19 Nov 2025 13:22:27 +0000	[thread overview]
Message-ID: <aR3Ek7LUsjGt6EZE@shell.armlinux.org.uk> (raw)
In-Reply-To: <aR3EM0OK09bvCT0B@shell.armlinux.org.uk>

On Wed, Nov 19, 2025 at 01:20:51PM +0000, Russell King (Oracle) wrote:
> On Wed, Nov 19, 2025 at 01:47:37PM +0100, Alexander Dahl wrote:
> > The additional use case for that variable is gone,
> > the expression is simple enough to pass it inline now.
> 
> Looking at net-next, this patch is wrong. You remove "val" but the code
> after the context in this patch is:
> 
>         return phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1, ADIN_CRSM_STAT, ret,
>                                          (ret & ADIN_CRSM_SFT_PD_RDY) == val,
>                                          1000, 30000, true);
> 
> which also references "val".
> 
> Note that this code is buggy as things stand. "val" will be zero (when
> en is false) or 1 (when en is true), whereas ADIN_CRSM_SFT_PD_RDY is 2.
> Thus, if en is true, then the condition can never be true.

Sorry, missed the first patch (the two patches arrived in reverse
order.) Please ignore this comment.

For the patch:

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

Thanks!

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

  reply	other threads:[~2025-11-19 13:22 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-19 12:47 [PATCH 0/2] net: phy: adin1100: Fix powerdown mode setting Alexander Dahl
2025-11-19 12:47 ` [PATCH 1/2] net: phy: adin1100: Fix software power-down ready condition Alexander Dahl
2025-11-19 13:21   ` Russell King (Oracle)
2025-11-19 12:47 ` [PATCH 2/2] net: phy: adin1100: Simplify register value passing Alexander Dahl
2025-11-19 13:20   ` Russell King (Oracle)
2025-11-19 13:22     ` Russell King (Oracle) [this message]
2025-11-19 15:11 ` [PATCH 0/2] net: phy: adin1100: Fix powerdown mode setting Nuno Sá
2025-11-21  2:20 ` patchwork-bot+netdevbpf

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=aR3Ek7LUsjGt6EZE@shell.armlinux.org.uk \
    --to=linux@armlinux.org.uk \
    --cc=ada@thorsis.com \
    --cc=andrew@lunn.ch \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.com \
    --cc=hkallweit1@gmail.com \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.