Re: [PATCH] Connecting the SB600's i8259 controller rather in pasemi's pci.c than in pasemi's setup.c.

From: kernel test robot

Date: Fri Aug 14 2026 - 11:43:30 EST


Hi Christian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on powerpc/next]
[also build test WARNING on powerpc/fixes linus/master v7.2-rc7 next-20260813]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Christian-Zigotzky/Connecting-the-SB600-s-i8259-controller-rather-in-pasemi-s-pci-c-than-in-pasemi-s-setup-c/20260813-054214
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link: https://lore.kernel.org/r/20260701125941.906-2-chzigotzky%40xenosoft.de
patch subject: [PATCH] Connecting the SB600's i8259 controller rather in pasemi's pci.c than in pasemi's setup.c.
config: powerpc64-randconfig-r052-20260814 (https://download.01.org/0day-ci/archive/20260814/202608142355.4AeDorvg-lkp@xxxxxxxxx/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260814/202608142355.4AeDorvg-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608142355.4AeDorvg-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> arch/powerpc/platforms/pasemi/setup.c:217:6: warning: no previous prototype for function 'nemo_init_IRQ' [-Wmissing-prototypes]
217 | void nemo_init_IRQ(void)
| ^
arch/powerpc/platforms/pasemi/setup.c:217:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
217 | void nemo_init_IRQ(void)
| ^
| static
1 warning generated.


vim +/nemo_init_IRQ +217 arch/powerpc/platforms/pasemi/setup.c

216
> 217 void nemo_init_IRQ(void)
218 {
219 struct device_node *np;
220 int gpio_virq;
221 struct mpic *mpic;
222
223 /* Connect the SB600's legacy i8259 controller */
224 np = of_find_node_by_path("/pxp@0,e0000000");
225 i8259_init(np, 0);
226 of_node_put(np);
227
228 gpio_virq = irq_create_mapping(NULL, 3);
229 irq_set_irq_type(gpio_virq, IRQ_TYPE_LEVEL_HIGH);
230 irq_set_chained_handler(gpio_virq, sb600_8259_cascade);
231 mpic_unmask_irq(irq_get_irq_data(gpio_virq));
232
233 mpic = irq_get_chip_data(gpio_virq);
234 irq_set_default_domain(mpic->irqhost);
235 }
236

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