linux-kernel - Re: [PATCH] net: bcmgenet: Use stronger register read/writes to assure ordering

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Message-ID: <20220321142645.38b8a087@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Mon, 21 Mar 2022 14:26:45 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Jeremy Linton <jeremy.linton@....com>, netdev@...r.kernel.org,
        opendmb@...il.com, davem@...emloft.net,
        bcm-kernel-feedback-list@...adcom.com,
        linux-kernel@...r.kernel.org, Peter Robinson <pbrobinson@...il.com>
Subject: Re: [PATCH] net: bcmgenet: Use stronger register read/writes to
 assure ordering

On Fri, 18 Mar 2022 12:04:34 -0700 Florian Fainelli wrote:
> On 3/9/22 8:53 PM, Jeremy Linton wrote:
> > GCC12 appears to be much smarter about its dependency tracking and is
> > aware that the relaxed variants are just normal loads and stores and
> > this is causing problems like:

> > Fixes: 69d2ea9c79898 ("net: bcmgenet: Use correct I/O accessors")
> > Reported-by: Peter Robinson <pbrobinson@...il.com>
> > Signed-off-by: Jeremy Linton <jeremy.linton@....com>  
> 
> Acked-by: Florian Fainelli <f.fainelli@...il.com>

Commit 8d3ea3d402db ("net: bcmgenet: Use stronger register read/writes
to assure ordering") in net now, thanks!