Hi all, After merging the pm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: In file included from include/linux/printk.h:7, from include/linux/kernel.h:16, from include/linux/list.h:9, from include/linux/kobject.h:19, from include/linux/of.h:17, from include/linux/irqdomain.h:35, from include/linux/acpi.h:13, from drivers/acpi/acpi_fpdt.c:11: drivers/acpi/acpi_fpdt.c: In function 'acpi_init_fpdt': include/linux/kern_levels.h:5:18: warning: too many arguments for format [-Wformat-extra-args] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' 14 | #define KERN_INFO KERN_SOH "6" /* informational */ | ^~~~~~~~ include/linux/printk.h:373:9: note: in expansion of macro 'KERN_INFO' 373 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~ drivers/acpi/acpi_fpdt.c:255:4: note: in expansion of macro 'pr_info' 255 | pr_info(FW_BUG, "Invalid subtable type %d found.\n", | ^~~~~~~ Introduced by commit 208757d71098 ("ACPI: tables: introduce support for FPDT table") -- Cheers, Stephen Rothwell