Messages in this thread | | | Subject | Re: Linux 5.16-rc1 | From | Guenter Roeck <> | Date | Sun, 14 Nov 2021 22:33:10 -0800 |
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On 11/14/21 9:21 PM, Linus Torvalds wrote: > On Sun, Nov 14, 2021 at 8:56 PM Guenter Roeck <linux@roeck-us.net> wrote: >> >> With gcc 5.4, mips:mapta_defconfig >> mips-linux-gcc.br_real: error: unrecognized command line option ‘-Wimplicit-fallthrough=5’ > > This (and the gcc-6.x ones for sh4eb/sparc/xtensa) are already fixed > in my tree. They're all "old gcc didn't support that flag" things with > a trivial one-liner fix. > > I was hoping you didn't have older gcc versions, but you clearly do ;^p >
I have to, for qemu. In some cases the new compilers don't work with old kernels (eg sparc) and I prefer to use a single compiler for all kernel versions, in other cases newer versions of gcc have trouble (sheb), and for xtensa building a compiler that works for a given hardware model is tricky so I try to avoid it as long as I can.
Guenter
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