linux-kernel - Re: linux-next: build failure after merge of the net-next tree

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Date:   Tue, 5 Oct 2021 12:24:07 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     David Miller <davem@...emloft.net>,
        Networking <netdev@...r.kernel.org>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>
Subject: Re: linux-next: build failure after merge of the net-next tree

Hi all,

On Tue, 5 Oct 2021 11:56:37 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> After merging the net-next tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> drivers/net/ethernet/ibm/ehea/ehea_main.c: In function 'ehea_setup_single_port':
> drivers/net/ethernet/ibm/ehea/ehea_main.c:2989:23: error: passing argument 2 of 'eth_hw_addr_set' from incompatible pointer type [-Werror=incompatible-pointer-types]
>  2989 |  eth_hw_addr_set(dev, &port->mac_addr);
>       |                       ^~~~~~~~~~~~~~~
>       |                       |
>       |                       u64 * {aka long long unsigned int *}
> In file included from include/linux/if_vlan.h:11,
>                  from include/linux/filter.h:19,
>                  from include/net/sock.h:59,
>                  from include/linux/tcp.h:19,
>                  from drivers/net/ethernet/ibm/ehea/ehea_main.c:20:
> include/linux/etherdevice.h:309:70: note: expected 'const u8 *' {aka 'const unsigned char *'} but argument is of type 'u64 *' {aka 'long long unsigned int *'}
>   309 | static inline void eth_hw_addr_set(struct net_device *dev, const u8 *addr)
>       |                                                            ~~~~~~~~~~^~~~
> cc1: some warnings being treated as errors
> 
> Caused by commit
> 
>   a96d317fb1a3 ("ethernet: use eth_hw_addr_set()")
> 
> I have used the net-next tree from next-20211001 for today.

I also had to use the next-20211001 version if the bpf-next tree (since
it had been reset past the broken commit in the net-next tree).

-- 
Cheers,
Stephen Rothwell

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