Re: Build regressions/improvements in v3.6

On Tue, Oct 2, 2012 at 8:32 PM, Geert Uytterhoeven [off-list ref] wrote:

JFYI, when comparing v3.6 to v3.6-rc7[3], the summaries are:
  - build errors: +4/-1

  + arch/powerpc/platforms/512x/mpc512x_shared.c: error:
'FSL_DIU_PORT_DVI' undeclared (first use in this function):  => 189:9
  + arch/powerpc/platforms/512x/mpc512x_shared.c: error: parameter 1
('port') has incomplete type:  => 187:54, 83:56, 88:57, 69:56
  + arch/powerpc/platforms/512x/mpc512x_shared.c: error: return type
is an incomplete type:  => 187:1

powerpc-randconfig

  + drivers/net/ethernet/realtek/r8169.c: error: expected identifier
before numeric constant:  => 451:2

xtensa-allmodconfig (hmm, this is not a new one, it felt through the
cracks in -rc7 because
of log line interleaving).

Ugh, arch/xtensa/include/asm/regs.h defines way to generic symbols,
like "MISC" (which
causes the above breakage), and even a few 2-letter symbols, which
surprisingly don't
cause conflicts...

[1] http://kisskb.ellerman.id.au/kisskb/head/5469/ (all 117 configs)
[3] http://kisskb.ellerman.id.au/kisskb/head/5445/ (all 117 configs)

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

Geert Uytterhoeven [off-list ref] wrote:

xtensa-allmodconfig (hmm, this is not a new one, it felt through the
cracks in -rc7 because of log line interleaving).

Ugh, arch/xtensa/include/asm/regs.h defines way to generic symbols,
like "MISC" (which causes the above breakage), and even a few
2-letter symbols, which surprisingly don't cause conflicts...

This particular one is already fixed in the xtensa linux-next tree
at git://github.com/czankel/xtensa-linux.git#for_next
(commit 36c74c2a16678e9ee6f08ef89eeebfdd1a96693d).

The short names in that header are for historical reasons.
It is indeed due for a cleanup.

-Marc