Re: Build regressions/improvements in v5.16-rc7

Re: Build regressions/improvements in v5.16-rc7

[Geert Uytterhoeven]

On Mon, 27 Dec 2021, Geert Uytterhoeven wrote:
> JFYI, when comparing v5.16-rc7[1] to v5.16-rc6[3], the summaries are:
>  - build errors: +2/-1

   + /kisskb/src/crypto/blake2b_generic.c: error: the frame size of 2288 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]:  => 109:1

sparc64-gcc11/sparc-allmodconfig

   + /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 1439:10, 1414:10

um-x86_64/um-all{mod,yes}config

Gr{oetje,eeting}s,

 						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
 							    -- Linus Torvalds

Re: Build regressions/improvements in v5.16-rc7

[Johannes Berg]

On Mon, 2021-12-27 at 11:44 +0100, Geert Uytterhoeven wrote:
> 
> sparc64-gcc11/sparc-allmodconfig
> 
>    + /kisskb/src/drivers/video/fbdev/nvidia/nvidia.c: error: passing argument 1 of 'iounmap' discards 'volatile' qualifier from pointer target type [-Werror=discarded-qualifiers]:  => 1439:10, 1414:10
> 

This should be fixed by

commit 5f174ec3c1d62013f86db6597249174d8cb227b2
Author: Al Viro <viro@zeniv.linux.org.uk>
Date:   Mon Sep 20 21:32:49 2021 +0000

    logic_io instance of iounmap() needs volatile on argument


when it lands.

johannes