On Sun, Jul 14, 2019 at 06:55:15AM +0800, kbuild test robot wrote: > CC: kbuild-all@xxxxxx > TO: Dianzhang Chen <dianzhangchen0@xxxxxxxxx> > CC: "Greg Kroah-Hartman" <gregkh@xxxxxxxxxxxxxxxxxxx> > CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y > head: 728f3eef5bdde0f9516277b4c4519fa5436e7e5d > commit: 55ac552ebd34f9687cc1bdcb07006bf7f104dc99 [9981/9999] x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg() > config: x86_64-rhel-7.2 (attached as .config) > compiler: clang version 9.0.0 (git://gitmirror/llvm_project 87856e739c8e55f3b4e0f37baaf93308ec2dbd47) > reproduce: > git checkout 55ac552ebd34f9687cc1bdcb07006bf7f104dc99 > # save the attached .config to linux build tree > make ARCH=x86_64 > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > >> arch/x86/kernel/ptrace.c:659:22: warning: ISO C90 forbids mixing declarations and code [-Wdeclaration-after-statement] > struct perf_event *bp = thread->ptrace_bps[index]; > ^ > 1 warning generated. > > vim +659 arch/x86/kernel/ptrace.c > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation Hi Greg and Sasha, I was going to reply to this on the GCC version of the thread but I don't really see a way to get the original message or the message ID from the web archive since I'm not subscribed to that list :( https://lists.01.org/pipermail/kbuild-all/2019-July/062379.html This is not an issue in Linus' tree because he fixed it manually during the merge: https://lore.kernel.org/lkml/CAHk-=whhq5RQYNKzHOLqC+gzSjmcEGNJjbC=Psc_vQaCx4TCKg@xxxxxxxxxxxxxx/ I would say that it isn't unreasonable to fold that fixup into the original patch, with a note that it came from Linus' merge upstream: 223cea6a4f05 ("Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip"). Cheers, Nathan
