On Thu, Jul 14, 2022 at 05:21:32PM +0100, Sudip Mukherjee wrote: > Hi Nathan, > > On Thu, Jul 14, 2022 at 5:05 PM Nathan Chancellor <nathan@xxxxxxxxxx> wrote: > > > > Hi Sudip, > > > > On Thu, Jul 14, 2022 at 12:07:06PM +0100, Sudip Mukherjee (Codethink) wrote: > > > Hi Stephen, > > > > > > On Thu, Jul 14, 2022 at 06:55:14PM +1000, Stephen Rothwell wrote: > > > > Hi all, > > > > > > > > Changes since 20220713: > > > > > > Build failures on next-20220714: > > > > <snip> > > > > > x86_64 allmodconfig with clang fails with: > > > > > > drivers/clk/qcom/gpucc-sm8350.c:111:2: error: initializer element is not a compile-time constant > > > gpu_cc_parent, > > > ^~~~~~~~~~~~~ > > > drivers/clk/qcom/gpucc-sm8350.c:126:2: error: initializer element is not a compile-time constant > > > gpu_cc_parent, > > > ^~~~~~~~~~~~~ > > > > I sent https://lore.kernel.org/20220711174004.3047516-1-nathan@xxxxxxxxxx/ > > for this a few days ago, it just needs to be picked up. > > > > > arch/x86/kernel/cpu/bugs.c:58:21: error: section attribute is specified on redeclared variable [-Werror,-Wsection] > > > DEFINE_PER_CPU(u64, x86_spec_ctrl_current); > > > ^ > > > ./arch/x86/include/asm/nospec-branch.h:283:12: note: previous declaration is here > > > extern u64 x86_spec_ctrl_current; > > > > This is now fixed in -tip so it should be fixed in -next tomorrorow: > > > > https://git.kernel.org/tip/db866d3352ec85e821e730e191481cba3a2bfa6e > > This should also go to Linus. This failure is in the mainline also. > https://lore.kernel.org/lkml/Ys6sZj6KYthnDppq@debian/ Yes, it is in the x86/urgent branch so it should get there by -rc7. Our CI is red too :( > > In the future, consider CC'ing our mailing list (llvm@xxxxxxxxxxxxxxx) > > for any clang related issues so that we can get them taken care of ASAP, > > we have a MAINTAINERS entry for a reason :) thank you for testing with > > clang; the more people that use it, hopefully the easier it will be to > > get things unbroken. > > Sure. I run arm, arm64, powerpc and x86_64 allmodconfigs with clang > (along with gcc) every night for mainline, started with linux-next > from today. Trying to setup the mips build also, I will mail llvm list > asking for help with the mips build. > Currently I only monitor the clang output from x86_64 as thats the one > which builds. If you want I can send the other reports also. Sure! I am not sure that we have tested mips or powerpc allmodconfig now that I am thinking about it but we'll certainly take a look at any issues that come from them and see what we can do. arm and arm64 are not warning free so disabling CONFIG_WERROR will help out there (arm64 is a recent failure that I have not been able to entirely figure out: https://github.com/ClangBuiltLinux/linux/issues/1642) but I do want to get those warning clean soon so they just build out of the box. Cheers, Nathan
