From: David Miller <davem@davemloft.net>
To: gustavo@embeddedor.com
Cc: inaky.perez-gonzalez@intel.com, linux-wimax@intel.com,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next] wimax/i2400m: use struct_size() helper
Date: Fri, 08 Feb 2019 22:58:27 -0800 (PST) [thread overview]
Message-ID: <20190208.225827.778818785400088382.davem@davemloft.net> (raw)
In-Reply-To: <20190208032217.GA3232@embeddedor>
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Thu, 7 Feb 2019 21:22:17 -0600
> One of the more common cases of allocation size calculations is finding
> the size of a structure that has a zero-sized array at the end, along
> with memory for some number of elements for that array. For example:
>
> struct foo {
> int stuff;
> void *entry[];
> };
>
> size = sizeof(struct foo) + count * sizeof(void *);
> instance = alloc(size, GFP_KERNEL);
>
> Instead of leaving these open-coded and prone to type mistakes, we can
> now use the new struct_size() helper:
>
> size = struct_size(instance, entry, count);
>
> This code was detected with the help of Coccinelle.
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Applied.
next prev parent reply other threads:[~2019-02-09 6:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-08 3:22 [PATCH net-next] wimax/i2400m: use struct_size() helper Gustavo A. R. Silva
2019-02-09 6:58 ` David Miller [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-05-01 3:27 Gustavo A. R. Silva
2019-05-04 4:05 ` David Miller
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