On Wed, 2017-06-21 at 21:58 +0100, Arend van Spriel wrote:
> This patch deals with changes made in struct net_device by commit
> cf124db566e6 ("net: Fix inconsistent teardown and release of private
> netdev state.").
>
> Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
> ---
> Hi Johannes,
>
> It took a while for me to be happy with this version. More so because
> I
> found that brcmfmac has a double-free bug if register_netdevice()
> fails
> so I needed to solve that puzzle. Below is the changelog.
>
> Regards,
> Arend
>
> V2:
> - changed netdev_set_priv_destructor() to macro.
> - revised semantic patch covering drivers only needing
> free_netdev().
> - used some tricks suggested by Julia in semantic patch.
> - added more version checks against 4.13.
> ---
> backport/backport-include/linux/netdevice.h | 9 ++++
> patches/0079-netdev-destructor.cocci | 84
> +++++++++++++++++++++++++++++
> 2 files changed, 93 insertions(+)
> create mode 100644 patches/0079-netdev-destructor.cocci
>
> diff --git a/backport/backport-include/linux/netdevice.h
> b/backport/backport-include/linux/netdevice.h
> index 06230b5..0f5b198 100644
> --- a/backport/backport-include/linux/netdevice.h
> +++ b/backport/backport-include/linux/netdevice.h
> @@ -320,4 +320,13 @@ static inline void netif_trans_update(struct
> net_device *dev)
> }
> #endif
>
> +#if LINUX_VERSION_IS_LESS(4,13,0)
> +#define netdev_set_priv_destructor(_dev, _destructor) \
> + (_dev)->destructor = __ ## _destructor
> +#else
Won't this cause annoying warnings, that __##_destructor is an unused
function, when compiling for higher kernels?
johannes
--
To unsubscribe from this list: send the line "unsubscribe backports" in
