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Message-ID: <8f140d64-e486-f02c-c9c5-09e6c740220c@gmail.com>
Date: Sat, 16 Apr 2022 12:39:13 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: Jakob Koschel <jakobkoschel@...il.com>,
"David S. Miller" <davem@...emloft.net>
Cc: Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Andrew Lunn <andrew@...n.ch>,
Vivien Didelot <vivien.didelot@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
Lars Povlsen <lars.povlsen@...rochip.com>,
Steen Hegelund <Steen.Hegelund@...rochip.com>,
UNGLinuxDriver@...rochip.com, Ariel Elior <aelior@...vell.com>,
Manish Chopra <manishc@...vell.com>,
Edward Cree <ecree.xilinx@...il.com>,
Martin Habets <habetsm.xilinx@...il.com>,
Michael Ellerman <mpe@...erman.id.au>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
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KP Singh <kpsingh@...nel.org>,
Casper Andersson <casper.casan@...il.com>,
Bjarni Jonasson <bjarni.jonasson@...rochip.com>,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
Arnd Bergmann <arnd@...db.de>,
Colin Ian King <colin.king@...el.com>,
Eric Dumazet <edumazet@...gle.com>,
Xu Wang <vulab@...as.ac.cn>, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linuxppc-dev@...ts.ozlabs.org, bpf@...r.kernel.org,
Mike Rapoport <rppt@...nel.org>,
Brian Johannesmeyer <bjohannesmeyer@...il.com>,
Cristiano Giuffrida <c.giuffrida@...nl>,
"Bos, H.J." <h.j.bos@...nl>,
Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH net-next v4 03/18] net: dsa: sja1105: reorder
sja1105_first_entry_longer_than with memory allocation
On 4/15/2022 5:29 AM, Jakob Koschel wrote:
> From: Vladimir Oltean <vladimir.oltean@....com>
>
> sja1105_first_entry_longer_than() does not make use of the full struct
> sja1105_gate_entry *e, just of e->interval which is set from the passed
> entry_time.
>
> This means that if there is a gate conflict, we have allocated e for
> nothing, just to free it later. Reorder the memory allocation and the
> function call, to avoid that and simplify the error unwind path.
>
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
> Signed-off-by: Jakob Koschel <jakobkoschel@...il.com>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
--
Florian
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