linux-kernel - Re: [PATCH] xdp: fix type of string pointer in __XDP_ACT_SYM

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Date:   Tue, 22 Oct 2019 21:42:26 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     "Ben Dooks (Codethink)" <ben.dooks@...ethink.co.uk>
Cc:     linux-kernel@...ts.codethink.co.uk,
        Alexei Starovoitov <ast@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] xdp: fix type of string pointer in __XDP_ACT_SYM_TAB

On Tue, Oct 22, 2019 at 01:59:25PM +0100, Ben Dooks (Codethink) wrote:
> The table entry in __XDP_ACT_SYM_TAB for the last item is set
> to { -1, 0 } where it should be { -1, NULL } as the second item
> is a pointer to a string.
> 
> Fixes the following sparse warnings:
> 
> ./include/trace/events/xdp.h:28:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:53:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:82:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:140:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:155:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:190:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:225:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:260:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:318:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:356:1: warning: Using plain integer as NULL pointer
> ./include/trace/events/xdp.h:390:1: warning: Using plain integer as NULL pointer
> 
> Signed-off-by: Ben Dooks (Codethink) <ben.dooks@...ethink.co.uk>

Applied, thanks!