Hi Huang, On 7 January 2016 at 20:00, kbuild test robot <lkp@xxxxxxxxx> wrote: > Hi Huang, > > [auto build test WARNING on pm/linux-next] > [also build test WARNING on v4.4-rc8 next-20160106] > [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] > > url: https://github.com/0day-ci/linux/commits/fu-wei-linaro-org/acpi-apei-add-Boot-Error-Record-Table-BERT-support/20160107-193040 > base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next > config: x86_64-lkp (attached as .config) > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > All warnings (new ones prefixed by >>): > >>> drivers/acpi/apei/bert.c:31:14: warning: extra tokens at end of #undef directive > #undef pr_fmt(fmt) > ^ > > vim +31 drivers/acpi/apei/bert.c > > 15 * > 16 * For more information about BERT, please refer to ACPI Specification > 17 * version 4.0, section 17.3.1 > 18 * > 19 * This file is licensed under GPLv2. > 20 * > 21 */ > 22 > 23 #include <linux/kernel.h> > 24 #include <linux/module.h> > 25 #include <linux/init.h> > 26 #include <linux/acpi.h> > 27 #include <linux/io.h> > 28 > 29 #include "apei-internal.h" > 30 > > 31 #undef pr_fmt(fmt) Do you have any idea? I did not get warnings when I compiled this for arm64. But without it, I got "redefined" warning. > 32 #define pr_fmt(fmt) "BERT: " fmt > 33 > 34 static int bert_disable; > 35 > 36 static void __init bert_print_all(struct acpi_bert_region *region, > 37 unsigned int region_len) > 38 { > 39 /* > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation -- Best regards, Fu Wei Software Engineer Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch Ph: +86 21 61221326(direct) Ph: +86 186 2020 4684 (mobile) Room 1512, Regus One Corporate Avenue,Level 15, One Corporate Avenue,222 Hubin Road,Huangpu District, Shanghai,China 200021 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html