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From: Guenter Roeck <linux@roeck-us.net>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 5.16-rc1
Date: Sun, 14 Nov 2021 22:33:10 -0800	[thread overview]
Message-ID: <5c543c8d-5e6a-1b90-7498-816a2cab8c81@roeck-us.net> (raw)
In-Reply-To: <CAHk-=whca4JrEExUZCf+iGhP+mV-_D2uyqiFHnaYqnfCOKyEVg@mail.gmail.com>

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


  reply	other threads:[~2021-11-15  6:33 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-14 22:28 Linux 5.16-rc1 Linus Torvalds
2021-11-15  3:17 ` linux-next: stats (Was: Linux 5.16-rc1) Stephen Rothwell
2021-11-15 18:02   ` is arch/h8300 dead, was " Christoph Hellwig
2021-11-15  4:56 ` Linux 5.16-rc1 Guenter Roeck
2021-11-15  5:21   ` Linus Torvalds
2021-11-15  6:33     ` Guenter Roeck [this message]
2021-11-15 17:07     ` Guenter Roeck
2021-11-15 17:53       ` Linus Torvalds
2021-11-15 20:39         ` Nick Terrell
2021-11-15 18:10       ` Linus Torvalds
2021-11-15 18:19         ` Helge Deller
2021-11-15 18:38         ` Guenter Roeck
2021-11-16 11:36       ` Michael Ellerman
2021-11-16 14:50         ` Guenter Roeck
2021-11-17 20:18         ` Geert Uytterhoeven
2021-11-17 23:29           ` Anton Altaparmakov
2021-11-18  0:28             ` Linus Torvalds
2021-11-18  1:26               ` Anton Altaparmakov
2021-11-18  1:54                 ` Linus Torvalds
2021-11-18 21:23                   ` Guenter Roeck
2021-11-18 22:34                     ` Linus Torvalds
2021-11-18 23:08                       ` Guenter Roeck
2021-11-15 16:14   ` Geert Uytterhoeven

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