Re: [PATCH v2 2/5] arm64: Work around Falkor erratum 1003

kbuild test robot
2016-12-30T02:43:32Z

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Hi Shanker,

[auto build test ERROR on next-20161224]
[also build test ERROR on v4.10-rc1]
[cannot apply to arm64/for-next/core v4.9-rc8 v4.9-rc7 v4.9-rc6]
[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/Christopher-Covington/arm64-Define-Falkor-v1-CPU/20161230-081412
config: arm64-allnoconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/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 >>):

arch/arm64/mm/context.c: In function 'flush_context':
>> arch/arm64/mm/context.c:93:13: error: 'CONFIG_QCOM_FALKOR_E1003_RESERVED_ASID' undeclared (first use in this function)
__set_bit(CONFIG_QCOM_FALKOR_E1003_RESERVED_ASID, asid_map);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/mm/context.c:93:13: note: each undeclared identifier is reported only once for each function it appears in
arch/arm64/mm/context.c: In function 'asids_init':
arch/arm64/mm/context.c:255:13: error: 'CONFIG_QCOM_FALKOR_E1003_RESERVED_ASID' undeclared (first use in this function)
__set_bit(CONFIG_QCOM_FALKOR_E1003_RESERVED_ASID, asid_map);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/CONFIG_QCOM_FALKOR_E1003_RESERVED_ASID +93 arch/arm64/mm/context.c

87 /* Update the list of reserved ASIDs and the ASID bitmap. */
88 bitmap_clear(asid_map, 0, NUM_USER_ASIDS);
89
90 /* Reserve ASID for Falkor erratum 1003 */
91 if (IS_ENABLED(CONFIG_QCOM_FALKOR_ERRATUM_1003) &&
92 cpus_have_cap(ARM64_WORKAROUND_QCOM_FALKOR_E1003))
> 93 __set_bit(CONFIG_QCOM_FALKOR_E1003_RESERVED_ASID, asid_map);
94
95 /*
96 * Ensure the generation bump is observed before we xchg the

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