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SubjectRe: [PATCH v0] irqchip/gic-v3: Avoid check of lpi configuration for non existent cpu
Hi Gaurav,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/irq/core]
[also build test ERROR on v5.5-rc1 next-20191209]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Gaurav-Kohli/irqchip-gic-v3-Avoid-check-of-lpi-configuration-for-non-existent-cpu/20191207-092729
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 407e62f52aadd8124dcba407f18a03aedce9b86a
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.5.0 make.cross ARCH=arm

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

drivers//irqchip/irq-gic-v3.c: In function 'gic_iterate_rdists':
>> drivers//irqchip/irq-gic-v3.c:801:30: error: 'INVALID_HWID' undeclared (first use in this function); did you mean 'INVALID_UID'?
cpu_logical_map(cpu) != INVALID_HWID);
^~~~~~~~~~~~
INVALID_UID
drivers//irqchip/irq-gic-v3.c:801:30: note: each undeclared identifier is reported only once for each function it appears in

vim +801 drivers//irqchip/irq-gic-v3.c

764
765 static int gic_iterate_rdists(int (*fn)(struct redist_region *, void __iomem *))
766 {
767 int ret = -ENODEV;
768 int i;
769 int cpu = 0;
770
771 for (i = 0; i < gic_data.nr_redist_regions; i++) {
772 void __iomem *ptr = gic_data.redist_regions[i].redist_base;
773 u64 typer;
774 u32 reg;
775
776 reg = readl_relaxed(ptr + GICR_PIDR2) & GIC_PIDR2_ARCH_MASK;
777 if (reg != GIC_PIDR2_ARCH_GICv3 &&
778 reg != GIC_PIDR2_ARCH_GICv4) { /* We're in trouble... */
779 pr_warn("No redistributor present @%p\n", ptr);
780 break;
781 }
782
783 do {
784 cpu++;
785 typer = gic_read_typer(ptr + GICR_TYPER);
786 ret = fn(gic_data.redist_regions + i, ptr);
787 if (!ret)
788 return 0;
789
790 if (gic_data.redist_regions[i].single_redist)
791 break;
792
793 if (gic_data.redist_stride) {
794 ptr += gic_data.redist_stride;
795 } else {
796 ptr += SZ_64K * 2; /* Skip RD_base + SGI_base */
797 if (typer & GICR_TYPER_VLPIS)
798 ptr += SZ_64K * 2; /* Skip VLPI_base + reserved page */
799 }
800 } while (!(typer & GICR_TYPER_LAST) &&
> 801 cpu_logical_map(cpu) != INVALID_HWID);
802 }
803
804 return ret ? -ENODEV : 0;
805 }
806

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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