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Date: Wed, 16 Dec 2020 10:01:27 +0800
From: Rong Chen <rong.a.chen@...el.com>
To: Philip Li <philip.li@...el.com>,
"Geva, Erez" <erez.geva.ext@...mens.com>
Cc: kernel test robot <lkp@...el.com>,
"kbuild-all@...ts.01.org" <kbuild-all@...ts.01.org>,
"clang-built-linux@...glegroups.com"
<clang-built-linux@...glegroups.com>,
Jamal Hadi Salim <jhs@...atatu.com>,
Jakub Kicinski <kuba@...nel.org>,
Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
"David S . Miller" <davem@...emloft.net>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
Alexey Kuznetsov <kuznet@....inr.ac.ru>,
Arnd Bergmann <arnd@...db.de>,
Cong Wang <xiyou.wangcong@...il.com>, Sudler@...1.01.org,
Andreas <andreas.meisinger@...mens.com>,
"jan.kiszka@...mens.com" <jan.kiszka@...mens.com>,
"henning.schild@...mens.com" <henning.schild@...mens.com>
Subject: Re: [kbuild-all] Re: [PATCH 1/3] Add TX sending hardware timestamp.
On 12/12/20 4:47 PM, Philip Li wrote:
> On Thu, Dec 10, 2020 at 12:41:32PM +0000, Geva, Erez wrote:
>> On 10/12/2020 04:11, kernel test robot wrote:
>>> Hi Erez,
>>>
>>> Thank you for the patch! Yet something to improve:
>>>
>> Thanks for the robot,
>> as we rarely use clang for kernel. It is very helpful.
>>
>>> [auto build test ERROR on b65054597872ce3aefbc6a666385eabdf9e288da]
>>>
>>> url: https://github.com/0day-ci/linux/commits/Erez-Geva/Add-sending-TX-hardware-timestamp-for-TC-ETF-Qdisc/20201210-000521
>> I can not find this commit
Hi Erez,
The url has been recovered now.
Best Regards,
Rong Chen
>>
>>> base: b65054597872ce3aefbc6a666385eabdf9e288da
>>> config: mips-randconfig-r026-20201209 (attached as .config)
>>> compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 1968804ac726e7674d5de22bc2204b45857da344)
>> However the clang in
>> https://download.01.org/0day-ci/cross-package/clang-latest/clang.tar.xz is version 11
> Sorry that these are issues at our side, including the branch/commit missing.
> The push to download.01.org failed and did not really work, we will look for
> recovering them.
>
>>> reproduce (this is a W=1 build):
>>> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>> Your make cross script tries to download the clang every time.
>> Please separate the download (which is ~400 MB and 2 GB after open) from the compilation.
> Hi Erez, thanks for your feedback, we will improve the reproduction
> side per these suggestions.
>
>> Please use "wget" follow your own instructions in this email.
>>
>>> chmod +x ~/bin/make.cross
>>> # install mips cross compiling tool for clang build
>>> # apt-get install binutils-mips-linux-gnu
>>> # https://github.com/0day-ci/linux/commit/8a8f634bc74db16dc551cfcf3b63c1183f98eaac
>>> git remote add linux-review https://github.com/0day-ci/linux
>>> git fetch --no-tags linux-review Erez-Geva/Add-sending-TX-hardware-timestamp-for-TC-ETF-Qdisc/20201210-000521
>> This branch is absent
>>
>>> git checkout 8a8f634bc74db16dc551cfcf3b63c1183f98eaac
>> This commit as well
>>
>>> # save the attached .config to linux build tree
>>> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
>>>
>> I use Debian 10.7.
>> I usually compile with GCC. I have not see any errors.
>>
>> When I use clang 11 from download.01.org I get a crash right away.
>> Please add a proper instructions how to use clang on Debian or provide
>> a Docker container with updated clang for testing.
>>
>>> If you fix the issue, kindly add following tag as appropriate
>>> Reported-by: kernel test robot <lkp@...el.com>
>>>
>>> All errors (new ones prefixed by >>):
>>>
>>>>> net/core/sock.c:2383:7: error: use of undeclared identifier 'SCM_HW_TXTIME'; did you mean 'SOCK_HW_TXTIME'?
>>> case SCM_HW_TXTIME:
>>> ^~~~~~~~~~~~~
>>> SOCK_HW_TXTIME
>>> include/net/sock.h:862:2: note: 'SOCK_HW_TXTIME' declared here
>>> SOCK_HW_TXTIME,
>>> ^
>>> 1 error generated.
>>>
>>> vim +2383 net/core/sock.c
>>>
>>> 2351
>>> 2352 int __sock_cmsg_send(struct sock *sk, struct msghdr *msg, struct cmsghdr *cmsg,
>>> 2353 struct sockcm_cookie *sockc)
>>> 2354 {
>>> 2355 u32 tsflags;
>>> 2356
>>> 2357 switch (cmsg->cmsg_type) {
>>> 2358 case SO_MARK:
>>> 2359 if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
>>> 2360 return -EPERM;
>>> 2361 if (cmsg->cmsg_len != CMSG_LEN(sizeof(u32)))
>>> 2362 return -EINVAL;
>>> 2363 sockc->mark = *(u32 *)CMSG_DATA(cmsg);
>>> 2364 break;
>>> 2365 case SO_TIMESTAMPING_OLD:
>>> 2366 if (cmsg->cmsg_len != CMSG_LEN(sizeof(u32)))
>>> 2367 return -EINVAL;
>>> 2368
>>> 2369 tsflags = *(u32 *)CMSG_DATA(cmsg);
>>> 2370 if (tsflags & ~SOF_TIMESTAMPING_TX_RECORD_MASK)
>>> 2371 return -EINVAL;
>>> 2372
>>> 2373 sockc->tsflags &= ~SOF_TIMESTAMPING_TX_RECORD_MASK;
>>> 2374 sockc->tsflags |= tsflags;
>>> 2375 break;
>>> 2376 case SCM_TXTIME:
>>> 2377 if (!sock_flag(sk, SOCK_TXTIME))
>>> 2378 return -EINVAL;
>>> 2379 if (cmsg->cmsg_len != CMSG_LEN(sizeof(u64)))
>>> 2380 return -EINVAL;
>>> 2381 sockc->transmit_time = get_unaligned((u64 *)CMSG_DATA(cmsg));
>>> 2382 break;
>>>> 2383 case SCM_HW_TXTIME:
>>> 2384 if (!sock_flag(sk, SOCK_HW_TXTIME))
>>> 2385 return -EINVAL;
>>> 2386 if (cmsg->cmsg_len != CMSG_LEN(sizeof(u64)))
>>> 2387 return -EINVAL;
>>> 2388 sockc->transmit_hw_time = get_unaligned((u64 *)CMSG_DATA(cmsg));
>>> 2389 break;
>>> 2390 /* SCM_RIGHTS and SCM_CREDENTIALS are semantically in SOL_UNIX. */
>>> 2391 case SCM_RIGHTS:
>>> 2392 case SCM_CREDENTIALS:
>>> 2393 break;
>>> 2394 default:
>>> 2395 return -EINVAL;
>>> 2396 }
>>> 2397 return 0;
>>> 2398 }
>>> 2399 EXPORT_SYMBOL(__sock_cmsg_send);
>>> 2400
>>>
>>> ---
>>> 0-DAY CI Kernel Test Service, Intel Corporation
>>> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
>>>
>> Please improve the robot, so we can comply and properly support clang compilation.
> Got it, we will keep improving the bot.
>
>> Thanks
>> Erez
>> _______________________________________________
>> kbuild-all mailing list -- kbuild-all@...ts.01.org
>> To unsubscribe send an email to kbuild-all-leave@...ts.01.org
> _______________________________________________
> kbuild-all mailing list -- kbuild-all@...ts.01.org
> To unsubscribe send an email to kbuild-all-leave@...ts.01.org
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