Messages in this thread | ![/](/images/icornerl.gif) | | From | Masahiro Yamada <> | Date | Sat, 27 Feb 2021 16:16:14 +0900 | Subject | Re: [PATCH] compiler.h: Raise minimum version of GCC to 5.1 for arm64 |
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Hi Linus,
On Fri, Jan 15, 2021 at 3:43 AM Linus Torvalds <torvalds@linux-foundation.org> wrote: > > On Thu, Jan 14, 2021 at 12:18 AM Ard Biesheuvel <ardb@kernel.org> wrote: > > > > So if the arguments are piling up, what is holding us back, other than > > inertia? > > I think we can most certainly just try increasing the minimum version > to 5.1 in the next merge window and see.
Just a friendly reminder.
It will be nice to increase the minimum GCC version to GCC 5.x globally.
Now, the version check has been moved to scripts/cc-version.sh, which is invoked from Kconfig.
If you decide to do this, please update 'gcc_min_version' in that file.
I'd like to suggest GCC 5.2 instead of 5.1 so that we can drop the following line from arch/powerpc/Kconfig.
if GCC_VERSION >= 50200 # plugin support on gcc <= 5.1 is buggy on PPC
> > Note that banning 4.9 for arm64 and banning it in general should be > > two different changes in any case, as the former will need to be > > backported to -stable kernels as well. > > Yes. The arm64 issue is a clear and known bug, plus I suspect gcc-4.9 > is ridiculously old in the arm64 ecosystem anyway. > > So the arm64 issue is a bug-fix, the follow-up of just upgrading gcc > requirements in general would be a "keep up with the times, and allow > those variable declarations in loops". > > Linus
-- Best Regards Masahiro Yamada
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