Re: [PATCH] net/sun3_82586: Avoid reading past buffer in debug output

From: patchwork-bot+netdevbpf
Date: Thu Feb 08 2024 - 22:11:44 EST


Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Tue, 6 Feb 2024 08:16:54 -0800 you wrote:
> Since NUM_XMIT_BUFFS is always 1, building m68k with sun3_defconfig and
> -Warraybounds, this build warning is visible[1]:
>
> drivers/net/ethernet/i825xx/sun3_82586.c: In function 'sun3_82586_timeout':
> drivers/net/ethernet/i825xx/sun3_82586.c:990:122: warning: array subscript 1 is above array bounds of 'volatile struct transmit_cmd_struct *[1]' [-Warray-bounds=]
> 990 | printk("%s: command-stats: %04x %04x\n",dev->name,swab16(p->xmit_cmds[0]->cmd_status),swab16(p->xmit_cmds[1]->cmd_status));
> | ~~~~~~~~~~~~^~~
> ...
> drivers/net/ethernet/i825xx/sun3_82586.c:156:46: note: while referencing 'xmit_cmds'
> 156 | volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS];
>
> [...]

Here is the summary with links:
- net/sun3_82586: Avoid reading past buffer in debug output
https://git.kernel.org/netdev/net-next/c/4bea747f3fbe

You are awesome, thank you!
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