Re: arch/m68k/68000/ints.c:82:30: error: 'ISR' undeclared
From: Greg Ungerer
Date: Thu Jun 02 2022 - 09:50:37 EST
Hi Geert,
On 2/6/22 17:23, Geert Uytterhoeven wrote:
On Tue, May 31, 2022 at 5:44 PM kernel test robot <lkp@xxxxxxxxx> wrote:
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8ab2afa23bd197df47819a87f0265c0ac95c5b6a
commit: 6b8be804ff376f6657ccdf6b29974e7c793d88c4 m68knommu: fix 68000 CPU link with no platform selected
date: 6 days ago
config: m68k-buildonly-randconfig-r004-20220530 (https://download.01.org/0day-ci/archive/20220531/202205310707.ppwnnzce-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6b8be804ff376f6657ccdf6b29974e7c793d88c4
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6b8be804ff376f6657ccdf6b29974e7c793d88c4
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash arch/m68k/68000/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
arch/m68k/68000/ints.c:77:6: warning: no previous prototype for 'process_int' [-Wmissing-prototypes]
77 | void process_int(int vec, struct pt_regs *fp)
| ^~~~~~~~~~~
arch/m68k/68000/ints.c: In function 'process_int':
arch/m68k/68000/ints.c:82:30: error: 'ISR' undeclared (first use in this function)
82 | unsigned long pend = ISR;
| ^~~
arch/m68k/68000/ints.c:82:30: note: each undeclared identifier is reported only once for each function it appears in
arch/m68k/68000/ints.c: In function 'intc_irq_unmask':
arch/m68k/68000/ints.c:135:9: error: 'IMR' undeclared (first use in this function)
135 | IMR &= ~(1 << d->irq);
| ^~~
arch/m68k/68000/ints.c: In function 'intc_irq_mask':
arch/m68k/68000/ints.c:140:9: error: 'IMR' undeclared (first use in this function)
140 | IMR |= (1 << d->irq);
| ^~~
arch/m68k/68000/ints.c: At top level:
arch/m68k/68000/ints.c:153:13: warning: no previous prototype for 'trap_init' [-Wmissing-prototypes]
153 | void __init trap_init(void)
| ^~~~~~~~~
arch/m68k/68000/ints.c:172:13: warning: no previous prototype for 'init_IRQ' [-Wmissing-prototypes]
172 | void __init init_IRQ(void)
| ^~~~~~~~
arch/m68k/68000/ints.c: In function 'init_IRQ':
arch/m68k/68000/ints.c:176:9: error: 'IVR' undeclared (first use in this function)
176 | IVR = 0x40; /* Set DragonBall IVR (interrupt base) to 64 */
| ^~~
arch/m68k/68000/ints.c:179:9: error: 'IMR' undeclared (first use in this function)
179 | IMR = ~0;
| ^~~
If M68000=y, but none of M68{,EZ,VZ}328 are enabled, ISR and IMR are
not defined. Most of the code in arch/m68k/68000/ints.c is specific
to the '328 series, and does not apply to plain 68000, but we can't
just not compile ints.c, as we do need definitions of trap_init()
and init_IRQ().
Factor out the '328 parts in dragonball.o, and keep a __weak dummy
init_IRQ() in ints.c?
Seems like a reasonable approach. I think the 68000/m68328.c might be
an appropriate place to put the '328 specific parts.
I will put a patch together.
Regards
Greg
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
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