Subject: Re: [PATCH v3] ethtool: Replace 0-length array with flexible array

From: [email-masked]
Date: Sat, 07 Jan 2023 03:40:16 +0000

Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <[email-masked]>:

On Thu,  5 Jan 2023 20:28:48 -0800 you wrote:
> Zero-length arrays are deprecated[1]. Replace struct ethtool_rxnfc's
> "rule_locs" 0-length array with a flexible array. Detected with GCC 13,
> using -fstrict-flex-arrays=3:
> 
> net/ethtool/common.c: In function 'ethtool_get_max_rxnfc_channel':
> net/ethtool/common.c:558:55: warning: array subscript i is outside array bounds of '__u32[0]' {aka 'unsigned int[]'} [-Warray-bounds=]
>   558 |                         .fs.location = info->rule_locs[i],
>       |                                        ~~~~~~~~~~~~~~~^~~
> In file included from include/linux/ethtool.h:19,
>                  from include/uapi/linux/ethtool_netlink.h:12,
>                  from include/linux/ethtool_netlink.h:6,
>                  from net/ethtool/common.c:3:
> include/uapi/linux/ethtool.h:1186:41: note: while referencing
> 'rule_locs'
>  1186 |         __u32                           rule_locs[0];
>       |                                         ^~~~~~~~~
> 
> [...]

Here is the summary with links:
  - [v3] ethtool: Replace 0-length array with flexible array
    https://git.kernel.org/netdev/net-next/c/b466a25c930f

You are awesome, thank you!
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