From: Sergey Ryazanov <ryazanov.s.a@gmail.com>
To: Nathan Huckleberry <nhuck@google.com>
Cc: Dan Carpenter <error27@gmail.com>,
llvm@lists.linux.dev, M Chetan Kumar <m.chetan.kumar@intel.com>,
Intel Corporation <linuxwwan@intel.com>,
Loic Poulain <loic.poulain@linaro.org>,
Johannes Berg <johannes@sipsolutions.net>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Tom Rix <trix@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] net: wwan: iosm: Fix return type of ipc_wwan_link_transmit
Date: Tue, 13 Sep 2022 03:56:37 +0300 [thread overview]
Message-ID: <CAHNKnsR8jBbJ32mia_XaP3SLWfHNJsFknbrMa9MxZMQbnJ1-pQ@mail.gmail.com> (raw)
In-Reply-To: <20220912214455.929028-1-nhuck@google.com>
On Tue, Sep 13, 2022 at 12:45 AM Nathan Huckleberry <nhuck@google.com> wrote:
> The ndo_start_xmit field in net_device_ops is expected to be of type
> netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev).
>
> The mismatched return type breaks forward edge kCFI since the underlying
> function definition does not match the function hook definition.
>
> The return type of ipc_wwan_link_transmit should be changed from int to
> netdev_tx_t.
>
> Reported-by: Dan Carpenter <error27@gmail.com>
> Link: https://github.com/ClangBuiltLinux/linux/issues/1703
> Cc: llvm@lists.linux.dev
> Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
next prev parent reply other threads:[~2022-09-13 0:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-12 21:44 [PATCH] net: wwan: iosm: Fix return type of ipc_wwan_link_transmit Nathan Huckleberry
2022-09-12 21:44 ` Nathan Huckleberry
2022-09-13 0:56 ` Sergey Ryazanov [this message]
2022-09-20 1:40 ` patchwork-bot+netdevbpf
2022-09-20 1:40 ` patchwork-bot+netdevbpf
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