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Date: Fri, 4 Feb 2022 19:40:13 -0800 From: Jakub Kicinski <kuba@...nel.org> To: "Gustavo A. R. Silva" <gustavoars@...nel.org> Cc: Denis Kirjanov <kda@...ux-powerpc.org>, "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH][next] net: sundance: Replace one-element array with non-array object On Fri, 4 Feb 2022 17:29:06 -0600 Gustavo A. R. Silva wrote: > It seems this one-element array is not actually being used as an > array of variable size, so we can just replace it with just a > non-array object of type struct desc_frag and refactor a bit the > rest of the code. > > This helps with the ongoing efforts to globally enable -Warray-bounds > and get us closer to being able to tighten the FORTIFY_SOURCE routines > on memcpy(). > > This issue was found with the help of Coccinelle and audited and fixed, > manually. > > [1] https://en.wikipedia.org/wiki/Flexible_array_member > [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays > > Link: https://github.com/KSPP/linux/issues/79 > Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> Reviewed-by: Jakub Kicinski <kuba@...nel.org>
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