Re: [v6 1/3] ACPI/IORT: Fixup SMMUv3 resource size for Cavium ThunderX2 SMMUv3 model

From: kbuild test robot
Date: Fri May 12 2017 - 20:34:55 EST


Hi Linu,

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on v4.11 next-20170512]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Geetha-sowjanya/Cavium-ThunderX2-SMMUv3-errata-workarounds/20170513-065956
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: arm64-defconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm64

All errors (new ones prefixed by >>):

drivers/acpi/arm64/iort.c: In function 'arm_smmu_v3_init_resources':
>> drivers/acpi/arm64/iort.c:777:21: error: 'ACPI_IORT_SMMU_CAVIUM_CN99XX' undeclared (first use in this function)
if (smmu->model == ACPI_IORT_SMMU_CAVIUM_CN99XX)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/acpi/arm64/iort.c:777:21: note: each undeclared identifier is reported only once for each function it appears in

vim +/ACPI_IORT_SMMU_CAVIUM_CN99XX +777 drivers/acpi/arm64/iort.c

771 smmu = (struct acpi_iort_smmu_v3 *)node->node_data;
772
773 /*
774 * Override the size, for Cavium ThunderX2 implementation
775 * which doesn't support the page 1 SMMU register space.
776 */
> 777 if (smmu->model == ACPI_IORT_SMMU_CAVIUM_CN99XX)
778 size = SZ_64K;
779
780 res[num_res].start = smmu->base_address;

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