Hi Michal, Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next] [also build test ERROR on v4.17-rc7 next-20180529] [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/Michal-Suchanek/powerpc-64s-Enhance-the-information-in-cpu_show_spectre_v1/20180529-181036 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-defconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 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 make.cross ARCH=powerpc All errors (new ones prefixed by >>): arch/powerpc/kernel/security.c: In function 'cpu_show_spectre_v1': >> arch/powerpc/kernel/security.c:54:6: error: 'barrier_nospec_enabled' >> undeclared (first use in this function); did you mean 'kernfs_ns_enabled'? if (barrier_nospec_enabled) ^~~~~~~~~~~~~~~~~~~~~~ kernfs_ns_enabled arch/powerpc/kernel/security.c:54:6: note: each undeclared identifier is reported only once for each function it appears in arch/powerpc/kernel/security.c:58:1: error: control reaches end of non-void function [-Werror=return-type] } ^ cc1: all warnings being treated as errors vim +54 arch/powerpc/kernel/security.c 48 49 ssize_t cpu_show_spectre_v1(struct device *dev, struct device_attribute *attr, char *buf) 50 { 51 if (!security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR)) 52 return sprintf(buf, "Not affected\n"); 53 > 54 if (barrier_nospec_enabled) 55 return sprintf(buf, "Mitigation: __user pointer sanitization\n"); 56 else 57 return sprintf(buf, "Vulnerable\n"); 58 } 59 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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