linux-kernel - Re: [dborkman-bpf:pr/bpf-tstamp 3/3] drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c:2482:44: warning: shift count >= width of type

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Message-ID: <2091d820-e95d-f3e1-722b-3b24f028f571@iogearbox.net>
Date:   Mon, 8 Nov 2021 13:34:57 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        kernel test robot <lkp@...el.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [dborkman-bpf:pr/bpf-tstamp 3/3]
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c:2482:44: warning: shift
 count >= width of type

On 11/6/21 10:12 PM, Christophe JAILLET wrote:
> (resend because of HTML issue reported by mailing list daemon)
> Le 06/11/2021 à 19:42, Andy Shevchenko a écrit :
>> +Cc Christophe (can you look into this? It seems your code is involved)
>> On Sat, Nov 6, 2021 at 3:52 AM kernel test robot<lkp@...el.com>  wrote:
>>> tree:https://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git  pr/bpf-tstamp
>>> head:   f7d619a946e981177777983af26e9e31163ffb38
>>> commit: f7d619a946e981177777983af26e9e31163ffb38 [3/3] net: skb clock bases
>>> config: i386-randconfig-a005-20210928 (attached as .config)
>>> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project  dc6e8dfdfe7efecfda318d43a06fae18b40eb498)
>>> reproduce (this is a W=1 build):
>>>          wgethttps://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross  -O ~/bin/make.cross
>>>          chmod +x ~/bin/make.cross
>>>          #https://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git/commit/?id=f7d619a946e981177777983af26e9e31163ffb38
>>>          git remote add dborkman-bpfhttps://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git
>>>          git fetch --no-tags dborkman-bpf pr/bpf-tstamp
>>>          git checkout f7d619a946e981177777983af26e9e31163ffb38
>>>          # save the attached .config to linux build tree
>>>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=i386
>>>
>>> If you fix the issue, kindly add following tag as appropriate
>>> Reported-by: kernel test robot<lkp@...el.com>
>>>
>>> All warnings (new ones prefixed by >>):
>>>
>>>     In file included from drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c:9:
>>>     In file included from drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h:22:
>>>     include/net/tcp.h:812:27: error: no member named 'skb_mstamp_ns' in 'struct sk_buff'
>>>             return tcp_ns_to_ts(skb->skb_mstamp_ns);
>>>                                 ~~~  ^
>>>     include/net/tcp.h:818:22: error: no member named 'skb_mstamp_ns' in 'struct sk_buff'
>>>             return div_u64(skb->skb_mstamp_ns, NSEC_PER_USEC);
>>>                            ~~~  ^
>>>     include/net/tcp.h:2367:8: error: no member named 'skb_mstamp_ns' in 'struct sk_buff'
>>>                     skb->skb_mstamp_ns += (u64)tp->tcp_tx_delay * NSEC_PER_USEC;
>>>                     ~~~  ^

Please ignore these, it is just a local test branch from a private tree.

Thanks,
Daniel