From: Stephen Hemminger <stephen@networkplumber.org>
To: Markus Elfring <Markus.Elfring@web.de>
Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: packet: Improve exception handling in fanout_add()
Date: Mon, 1 Jan 2024 10:12:21 -0800 [thread overview]
Message-ID: <20240101101221.73276d5d@hermes.local> (raw)
In-Reply-To: <a69fce11-68c2-446c-9da8-b959bb3ba70f@web.de>
On Mon, 1 Jan 2024 10:46:45 +0100
Markus Elfring <Markus.Elfring@web.de> wrote:
> > It is fine to call kfree with a possible NULL pointer:
> …
> > * If @object is NULL, no operation is performed.
> > */
> > void kfree(const void *object)
>
> Such a function call triggers an input parameter validation
> with a corresponding immediate return, doesn't it?
> Do you find such data processing really helpful for the desired error/exception handling?
If you look at the existing coccinelle script there is even one
to remove unnecessary checks for null before calling kfree.
next prev parent reply other threads:[~2024-01-01 18:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-31 15:39 [PATCH] packet: Improve exception handling in fanout_add() Markus Elfring
2023-12-31 21:45 ` Willem de Bruijn
2024-01-01 9:46 ` Markus Elfring
2024-01-01 15:29 ` Willem de Bruijn
2024-01-01 16:33 ` David Laight
2024-01-01 18:12 ` Stephen Hemminger [this message]
2024-01-02 7:32 ` Markus Elfring
2023-12-31 22:44 ` [PATCH] " Stephen Hemminger
2024-01-02 16:30 ` Stephen Hemminger
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